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Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Mangrove forests, characterized by high photosynthetic rate and low light compensation point, exhibit high gross primary production (GPP), an important component of "blue carbon". Accurate estimation of regional GPP and quantification of its limiting factors are greatly significant for China to achieve its carbon peaking and carbon neutrality goals. In this paper, the GPP of mangrove ecosystems in Hainan Island from 2016 to 2020 were estimated based on the mangrove vegetation photosynthesis-light use efficiency (MVP-LUE) model using Sentinel-2 imagery and environmental data, and the spatiotemporal distribution pattern of GPP and its driving mechanism were explored. The results were as follows: (1) During the study period, the annual GPP of mangrove ecosystems on Hainan Island showed an increasing trend, with higher GPP in the eastern regions than western regions, and northern regions than southern regions. The mangroves distributed over a large area in northeastern Hainan Island dominate the temporal variation patterns at the whole island scale. However, distinct differences exist in the temporal dynamics across different regions of the mangrove ecosystem in Hainan Island. (2) In terms of the formation mechanism, the spatiotemporal distribution pattern of GPP of mangrove ecosystems on Hainan Island was driven by a combination of multiple meteorological factors. Seasonally within each year, during the transition from the dry season to rainy season, GPP was higher due to lower limitation from air temperature (Tair), and the promoting effects of photosynthetically active radiation (PAR) and sea surface temperature. In the middle of the dry season, low Tair imposed a serious limitation on GPP, but this Tair, limitation was weakened with decreasing latitude. In the rainy season, higher cloud cover resulted in PAR becoming a limiting factor for GPP. At the end of the paper, we discussed the uncertainties and limitations of MVP-LUE, and the spatiotemporal distribution patterns of mangrove ecosystem GPP not only be constrained by environmental factors, but also species composition and forest age structure can also be driving factors. The results of this study provide basic data to assess the contribution of regional mangrove forests to the global carbon cycle, and theoretical support to reveal the key environmental factors affecting mangrove ecosystem carbon dynamics. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Engineering Management / Gongcheng Guanli Xuebao is the property of Journal of Engineering Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective] Carbon dioxide (CO2) displacement and storage are the most viable technologies for achieving carbon neutralization and enhancing low-permeability reservoir recovery. The current research focused on the evaluation of CO2 storage capacity and mechanism under different geological conditions but ignored the problem of CO2 storage time being too long. When CO2 was injected into the stratum for geological burial, it mainly existed in the form of geological structure burial in the initial stage of injection (within several decades), and the safety was relatively low. In the middle stage of injection (within 100 years), it changed from geological structure burial to bound storage and gradually to dissolved storage, and the safety was relatively good at this time. In the later stage of injection (thousands of years), the storage forms were mainly dissolved storage and mineralized storage, and the safety was the highest. Therefore, through laboratory experiments, studying how to improve CO2 mineralization and storage speed and shorten the CO2 storage time using chemical agents is of great significance. [Methods] Based on the actual CO2 storage technology in reservoirs, a CO2 storage experimental device under formation temperature and pressure conditions was independently built, and multimedia-assisted CO2 storage experimental research was conducted. The precipitation of potassium carbonate through the utilization of the ethanol + KOH solution system enabled CO2 capture and carbonization. The reaction process in the solution system was affected by the ethanol concentration, resulting in different CO2 carbonization amounts with the change in the ethanol concentration. Simultaneously, the precipitation-generated potassium-based acid salt could undergo a reaction with water to facilitate ethanol regeneration. This paper utilized experimental methods to investigate the CO2 capture efficiency of the ethanol + KOH system, real-time monitoring of ethanol content in the solution, and identification of the optimal ethanol concentration for the formation temperature. The solution was supplemented with KOH, followed by the utilization of regenerated ethanol from the solution's carbonization reaction for subsequent carbonization, enabling the determination of the maximum CO2 capture capacity of the ethanol + KOH system. The CO2 burial experiment was conducted using a high-temperature and high-pressure core displacement device after injecting the ethanol + KOH solution. The characteristics of CO2 mineralization under different permeability/porosity conditions were discussed. [Results] The research results indicated that the 96% ethanol + 3-g KOH solution demonstrated effective CO2 capture, resulting in an average precipitation of 4.56 g per capture. Simultaneously, following the saturation of the core with the 96% ethanol + 3-g KOH solution, CO2 injection was conducted to induce sediment formation, resulting in a reduction in core permeability of approximately 16.01%. After CO2 mineralization and burial, the average porosity of the low-permeability core decreased by 7.07%, and the porosity change rate was positively correlated with porosity. The results of the CO2 storage experiment indicated that after the action of the 96% ethanol + 3-g KOH solution, CO2 could be effectively captured in the form of precipitates in the reservoir, with the largest degree of capture in medium to large pores. Compared with formation water, the composite solution studied in this paper can improve the CO2 storage efficiency by 30%. The 96% ethanol + 3-g KOH solution can accelerate the CO2 precipitation process in the reservoir and shorten the mineralization and storage time of CO2 in the reservoir. [Conclusions] This study proposed a new method to increase CO2 storage capacity by injecting a KOH + ethanol solution into a formation to improve CO2 mineralization and storage efficiency. Moreover, it realized the effective integration of the chemical industry and petroleum engineering disciplines and provided a new research approach for carbon peaking and carbon neutrality. [ABSTRACT FROM AUTHOR]

Copyright of China Population Resources & Environment is the property of Shandong Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Power Generation Technology is the property of Power Generation Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Population Resources & Environment is the property of Shandong Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chemical Engineering of Oil & Gas / Shi You Yu Tian Ran Qi Hua Gong is the property of PetroChina Southwest Oil & Gas Field Company and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the context of achieving the goals of reaching peak carbon emissions and carbon neutrality, mandatory corporate environmental information disclosure has begun to be implemented. According to the theory of geographical economics, the closer the geographical distance between enterprises and ecological environmental regulatory authorities, the more likely it is to form a 'deterrence' (the 'distance attenuation effect' of supervision costs) or a 'reliance' (the 'distance attenuation effect' of rent-seeking costs) for enterprises. Based on the data of listed companies with major pollutants from 2015 to 2020, this study empirically tested the directions and paths of the impact of the geographical distance between enterprises and ecological environmental regulatory authorities on the quality of corporate environmental information disclosure using fixed effects model and mediating effects model. The study showed that: 1 The closer the geographical distance between enterprises and ecological environmental regulatory authorities, the higher the quality of corporate environmental information disclosure, which supported the 'distance attenuation effect' hypothesis of supervision costs. 2 The impact of geographical distance on the quality of corporate environmental information disclosure was realized through the intensity of supervision and monitoring at the provincial level and the intensity of law enforcement at the prefecture level. 3 The strengthening of environmental governance intensity, the improvement of regional digitalization level, and the increase in media attention suppressed the 'distance attenuation effect' of supervision costs. It is concluded that in order to achieve a balanced development of the quality of corporate environmental information disclosure in the whole region, it is necessary to strengthen environmental governance intensity, improve regional digitalization level, and increase media attention. From the perspective of geographical economics, this paper expands the influencing factors of corporate environmental information disclosure quality, enriches the theoretical practice of the 'distance attenuation effect' in geographical economics, and provides solutions and theoretical bases for promoting the balanced development of corporate environmental information disclosure quality. [ABSTRACT FROM AUTHOR]

[Objective] The problems of excessive CO2 emission, the greenhouse effect, and energy shortage have been widely discussed among countries worldwide. Electrocatalytic CO2 reduction reaction (ECO2RR) can realize the conversion of CO2 into value-added chemical fuel under mild conditions and the storage of renewable electricity, which is an effective way to promote China's aim of carbon peak and carbon neutrality. To pursue higher catalytic activity and product selectivity, researchers are committed to developing highly efficient ECO2RR electrocatalysts. In this paper, we designed Mo2CO2 MXene-based single-atom catalysts (SACs) (TM@Mo2CO2-Ov, TM = Fe, Co, Ni) according to the needs of ECO2RR, focusing on their electronic structure, catalytic performance, as well as reaction mechanism through theoretical simulation of the electrocatalytic process. [Methods] In this work, the CIF file of the Mo2CO2 MXene structure downloaded from the crystal structure database was first imported into the Materials Studio software. Then, the (110) crystal plane was cleaved, and a vacuum layer of 15 A was created. Afterward, a 3 x 3 supercell treatment was applied to the system. Next, the VASP software was utilized to perform structure optimization. After the Mo2CO2 structure was optimized, a vacancy site for an oxygen atom on the surface was constructed. Subsequently, the Fe, Co, and Ni metal atoms were introduced into the respective vacancy sites to create the Fe@Mo2CO2-Ov, Co@Mo2CO2-Ov, and Ni@Mo2CO2-Ov catalyst models, respectively. Finally, the VASP software was employed to optimize the catalyst structures and the adsorption structures of the reaction intermediates. The performance evaluation of ECO2RR on different SACs was obtained by studying the reaction mechanism of the production of C products (CO, HCOOH, CH3OH, and CH4). The free energy of ECO2RR was calculated using the computational hydrogen electrode mode, wherein the energy of (H+ + e-) remained equivalent to that of 1/2H2 at normal pressure and temperature. [Results] The calculated results showed the following: 1) In the Mo2CO2-Ov framework, single Fe, Co, and Ni atoms replaced the Mo atom at the center of the O defect. After structural optimization, it was found that these three structures did not change significantly, and the bond lengths only changed slightly. 2) The CO2 molecule was stably adsorbed on Fe@Mo2CO2-Ov, Co@Mo2CO2-Ov, and Ni@Mo2CO2-Ov via chemisorption. The structures of CO2 were significantly bent after adsorption, and the calculated absolute values of the interaction exceeded four. The DOS analysis showed that the occupation of d orbitals of Ni, Co, and Fe led to the adsorption difference. The d orbitals of Co and Fe were hybridized with the ng and nM* orbitals of CO2, which promoted the adsorption and activation of CO2. 3) The ECO2RR free energy diagram and reaction path analysis showed that Co@Mo2CO2-Ov had higher ECO2RR activity and better CH4 selectivity and was a better electrocatalyst for the formation of C1 products from ECO2RR than Fe@Mo2CO2-Ov and Ni@Mo2CO2-Ov. [Conclusions] By integrating the geometrical analysis, DOS calculation, and free energy analysis, Co@Mo2CO2-Ov was established as the ideal ECO2RR catalyst. The work can achieve the expected goal of significantly enhancing the ECO2RR performance and improving students' scientific research literacy to explore micromechanisms and processes through the extension of the experimental process. [ABSTRACT FROM AUTHOR]

Southwest China is one of the three largest continuous karst clusters in the world; therefore, studies on karst rocky desertification in this area are very important. For more than 20 years' control, the decreasing area and risk of karst rocky desertification has contributed to the continuous ecological improvement. Nowadays, studies on rocky desertification mainly focus on the eight provinces in Southwest China, which have been designated as rocky desertification monitoring areas by the Chinese government. After the first phase of the comprehensive control project for karst rocky desertification in 2016, the expansion trend of rocky desertification in the southwest region was effectively curbed. Subsequent articles published tend to focus on analyzing the current situation, comprehensive management, or species adaptability of rocky desertification monitoring areas. However, the Qinba region in Shaanxi Province is located outside the monitoring area. In the process of studying the karst geological relics of the Zhenba Sanyuan Tiankeng Group, signs of rocky desertification have been found, but there still exists a research gap in the investigation and research on karst rocky desertification in this area which is one of the areas with the richest biodiversity in China, known as "ecological lung", "central water tower" and "biological gene bank". Unfortunately, this area is burdened with poverty, so the investigation and study of karst rocky desertification in the Qinba region of Shaanxi Province is of great significance to ensure green and high-quality development and ecological civilization construction. In this paper, by analyzing the current situation of karst rocky desertification in Southwest China, we summarized its harm to the ecological environment and social economy, clarify natural and human factors resulting in rocky desertification, and integrate the typical treatment experience in Southwest China. We also introduce three technical methods, including remote sensing interpretation, UAV remote sensing survey and analysis of carbonate dissolution rate, to provide a scientific basis for studies on karst rocky desertification in the Qinba region of Shaanxi Province. Study results show that the area of karst rocky desertification in the Qinba region covers 63.37 km², and the areas of severe, moderate and mild rocky desertification cover 17.97 km², 21.60 km² and 23.80 km², respectively. Based on the survey results, there are both regional differences and some similarities in distribution patterns in the areas of rocky desertification development. Specifically, the degree of rocky desertification in the limestone area is more severe than that in the dolomite area. It is also more severe in the area with developed water system than that in the arid and semi-arid area, and the more active the new structure is, the more severe the rocky desertification is. Compared to the Southwest China, the degree of karst rocky desertification in the Qinba region of Shaanxi Province is relatively light, with a smaller distribution area, mainly due to the less rainfall in the study area. The karst rocky desertification in Beiyang mountain of Zhen'an county is the most severe, with an area of 7.28 km². In the 1960s, a large-scale free-range of livestock severely damaged vegetation. The indiscriminate deforestation by humans further exacerbated the process of rocky desertification. The rocky desertification in Hailuogong village of Shanyang county is also severe, covering an area of 5.83 km², because the landform in this area is a typical peak-cluster depression, which is likely developed into rocky desertification. The contradiction between people and land needs to be solved urgently. In conclusion, more monitoring and research efforts are needed in Beiyang mountain and Hailuogong where the rocky desertification is severe. Firstly, we should clarify the causes of rocky desertification in the Qinba region and compare them with the causes in Southwest China to determine whether the rocky desertification is mainly resulted from natural factors or human factors. Secondly, we should know how to clarify the causes of karst rocky desertification in the Qinba region; for example, we can dynamically monitor the change of rock desertification by field verification, remote sensing interpretation, climate change analysis, etc. We can also calculate the contribution rate of each influence factor by geographical detector model. Thirdly, we should further study influence factors of karst dissolution rate. We can monitor physical and chemical properties of soil (soil moisture, carbon dioxide concentration, pH, organic matter content and porosity) in areas with moderate to severe rocky desertification, and analyze the relationship between dissolution rate and physical and chemical properties of soil in rocky desertification areas. Finally, in order to provide basic data for carbon neutrality research in Shaanxi, we should conduct studies on the carbon sink of rocky desertification areas in the Qinba region, with the methods such as dissolution test pieces and hydrochemical runoff. [ABSTRACT FROM AUTHOR]

Copyright of China Population Resources & Environment is the property of Shandong Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agricultural Resources & Environment / Nongye Ziyuan yu Huanjing Xuebao is the property of Journal of Agricultural Resources & Environment Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Population Resources & Environment is the property of Shandong Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Geology & Recovery Efficiency is the property of Petroleum Geology & Recovery Efficiency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Geology & Recovery Efficiency is the property of Petroleum Geology & Recovery Efficiency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Geology & Recovery Efficiency is the property of Petroleum Geology & Recovery Efficiency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Carbon capture, utilization, and storage (CCUS) technology is a vital technical path to realize the low-carbon transformation of the coal power industry as well as a key means to ensure the safe and stable operation of the future power system. However, the current development path of coupling coal power and CCUS technology is not clear, and there is room for the optimization of the corresponding policy mechanism. This paper quantitatively estimates the contribution of CCUS application in the coal power industry to China's low-carbon energy transition strategy, describes the future development path of coal power's CCUS industrialization from the spatio-temporal dimension, and further constructs a comprehensive supporting policy system framework. The results show that the development of coupling coal power and CCUS technology is technically and economically feasible, which can not only achieve deep decarbon-ization of the power system and bring significant output and employment dividends in the coal power industry, but also effectively control the average carbon price level of society. In terms of the temporal dimension, the development path of coal power's CCUS industrialization in the future should be divided into three stages: technology research, development, and demonstration (2021--2030), large-scale application (2030--2040), and commercial development (2040--2060). In terms of the spatial dimension, the technically and economically feasible regions for cluster development are the Ordos Basin, the Junggar Basin, the Bohai Bay Basin, etc. Constructing a comprehensive policy support system framework incorporating ' macro support, fiscal and tax finance, market mechanism, technology research, development, and demonstration, as well as management system' is conducive to realizing a large-scale CCUS application in the coal power industry. In the stage of technology research, development, and demonstration of coal power's CCUS application, more definitive incentive policies such as storage subsidies, compensation for power generation hours, and feed-in tariff subsidies should be implemented. When the project cost drops to a certain extent, there should be a gradual transition to market-based policy tools such as carbon trading and green electricity trading mechanisms, and green finance should also be promoted. Based on the relevant conclusions, some targeted policy suggestions are put forward to provide references for promoting the green and low-carbon transformation of China's coal power industry. [ABSTRACT FROM AUTHOR]

Wind energy is an important clean energy, according to China's carbon peak and carbon neutral strategy, the policy of replacing small with large wind turbine blades and replacing old with new is imperative. The main material of wind turbine blades is glass fiber reinforced polymer, which has problems of difficult recycling technology and high recycling cost. Nowadays, there is no ideal large-scale recycling method. Therefore, the systematic and high-value utilization of waste wind turbine blades is imminent. In this paper, the material type, recycling methods and their respective characteristics of wind turbine blades are summarized. The recent developments of waste wind turbine blades in cement-based materials and thermoplastic polymer materials are thoroughly discussed. Overall, this paper can provide reference for the subsequent development and research on the recycling waste wind turbine blades. [ABSTRACT FROM AUTHOR]

The material flow analysis (MFA) method is widely used in the fields of resource management, environmental governance, and sustainable development evaluation, but the progress of its international research and the paths to support carbon neutrality are still unclear. Therefore, following the logic of ' sorting-integration - expansion,' this study first analyzed 2 148 documents included in the core database of Web of Science from 2000 to 2022 by using CiteSpace bibliometric tools, captured the key knowledge base and topic evolution of the international MFA research, and conducted a detailed review and comprehensive analysis of the MFA frontier application research. Second, by integrating the current status of international MFA research and the paths to carbon neutrality, this study constructed an integrated MFA research framework towards carbon neutrality. Finally, this paper summarized the support paths of MFA application research for the four important carbon reduction sectors and proposed current research deficiencies and future development directions. The main findings include: (J) The key studies in the fields of ' resource management,' ' environmental accounting,' and ' indicators ' could serve as a methodological and theoretical basis for MFA to perform its management, accounting, and evaluation functions. © With the support of the basic research topics of 'industrial ecology,' 'material flow analysis,' and 'material flow management, ' the application research topics of MFA had gradually evolved from the outdated topics of ' nitrogen,' ' Tarragona province,' ' heavy metals,' and ' alloying elements' to the frontier topics of ' municipal solid wastes,' ' iron,' ' circular economy,' ' exposure,' and ' renewable energy,' and the integrated application of MFA with the methodologies of scenario analysis, life-cycle assessment, and input-output modeling had become a mainstream trend. © The integrated MFA research framework towards carbon neutrality consisted of three modules, i.e., theoretical and methodological basis, application research paradigm, and supporting pathway for carbon neutrality, of which the structure of the application research paradigm reflected the core functions of the MFA, i.e., accounting material stocks and flows, assessing material demand and recycling potential, and developing the material management system. The elements of the application research paradigm covered the metabolic object, spatial scale, application triggers, main content, and application purpose of MFA research. ® The studies of MFA application supported the four important carbon reduction sectors in heterogeneous ways, and their relevance to the goal of achieving carbon neutrality needed to be further improved. In future research, MFA can be applied to account for the resource demand and waste generation of specific zero-carbon technologies in the energy production sector, to assess the resource and environmental impacts of end-use electrification, efficiency, and cleaner technologies in the energy consumption sector, to measure the environmental exposures and economic feasibility of the technologies for decarbonization and solid-waste utilization in the industrial and commercial sectors, and to evaluate the metabolic efficiency of nutrients and the performance of biological carbon fixation in the agriculture and forestry sectors. [ABSTRACT FROM AUTHOR]

Copyright of South Architecture / Nanfang Jianzhu is the property of South Architecture Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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As an efficient zero-carbon energy source, hydrogen energy has great potential for future development. It is considered to be an important driving force for transforming new energy sources in the background of carbon neutrality. Because the hydrogen produced by the current mainstream hydrogen production method contains impurities, purification and separation technology is critical in using hydrogen energy. Pure hydrogen can be used in various industrial fields. This paper describes the impurity components contained in hydrogen-rich raw gas obtained by various hydrogen production technologies, and reviews the research status of five commonly used hydrogen purification technologies, such as pressure swing adsorption, low-temperature separation, metal hydride, membrane separation, and solvent absorption, as well as introduces the new hydrogen purification technology using a supersonic separation device. Meanwhile, this paper also analyzes the process flow, equipment, application conditions, purification effect, advantages and disadvantages of each hydrogen purification technology, and clarifies the challenges faced by each purification technology and current research hotspots. Finally, it summarizes various hydrogen purification technologies, and proposes the future development trend and research direction of hydrogen purification technology, which provides a valuable reference for obtaining optimizedly more efficient and economical hydrogen purification technology. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of China Population Resources & Environment is the property of Shandong Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Population Resources & Environment is the property of Shandong Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science & Technology of Cereals, Oils & Foods is the property of Science & Technology of Cereals, Oils & Foods Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Engineering Management / Gongcheng Guanli Xuebao is the property of Journal of Engineering Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

As a voluntary individual carbon trading mechanism, the carbon generalized system of preferences (CGSP) aims to promote individuals' active practice of low-carbon behaviors through the incentive model of 'who reduces emissions, who benefits from the practice.' It is an extension and expansion of the carbon emission trading mechanism to the individual level, and it is of great significance to evaluate the carbon emission performance of this policy to tap the emission reduction potential of individual society and enrich the environmental policy tool system. Based on the quasi-natural experiment of the implementation of the CGSP in Guangdong Province in 2015, this paper empirically evaluated the policy effect of the CGSP in improving regional carbon emission performance by using the synthetic control method and provincial panel data from 2005 to 2021 and further explored the mechanism of the policy effect. The results showed that the implementation of the CGSP was conducive to improving regional carbon emission performance and promoting the reduction of regional total carbon emissions, per capita carbon emissions, and carbon emission intensity. In the seven years from 2015 to 2021, the policy intervention reduced the total carbon emissions of Guangdong Province by an average of 40.94 million tons, per capita carbon emissions by 0.294 tons, and carbon emission intensity by 0.312 tons/10 000 yuan. This conclusion was still valid after the placebo test, ranking test, and test excluding other policy interferences. Further intermediary tests showed that the CGSP acted on regional carbon emissions through two intermediary pathways: promoting public green travel and reducing electricity consumption. But the mediating path with energy consumption as the mediating variable did not hold. The study reveals the effectiveness of both incentivized and voluntary individual carbon trading mechanisms in environmental governance and makes the following policy recommendations: ① We should pay attention to the emission reduction potential of social individuals on the consumer side, gradually incorporate individual carbon trading mechanisms into carbon emission reduction governance, and encourage local governments to apply and develop the CGSP according to local conditions. ② In the design of CGSP, it is necessary to improve the incentive mechanism in low-carbon travel scenarios and low-carbon life scenarios and improve the convenience of public participation in emission reduction. ③ It is necessary to develop a more scientific carbon-inclusive quantitative verification methodology and build a comprehensive carbon trading system covering the public and industrial enterprises. [ABSTRACT FROM AUTHOR]

(1) Background-Promoting the growth of wood processing enterprises is the internal requirement of practicing the "Two Mountains" theory and realizing the goal of "carbon peak and carbon neutrality". The internal capital accumulation of many wood processing enterprises cannot support the expansionary investment, and it is urgent to effectively allocate credit resources of financial institutions. At present, there are few literature to empirically examine the effect and internal mechanism of the availability of regional finance on the growth of wood processing enterprises, and can not provide micro-evidence that county finance promotes the growth of wood processing enterprises. (2) Methods-The sample enterprises covered 31 provinces ( municipalities and autonomous regions), 270 prefecture-level cities and 1, 374 counties ( cities and districts) in China. Based on the unbalanced panel data of wood processing enterprises from 2008 to 2016 and the number of branches of county financial institutions, this paper comprehensively used the individual and time fixed effect panel model, panel tool variable model, system GMM method and other methods to explore the effect of the availability of county finance on the growth of wood processing enterprises. The three-step method, Sobel test method and Boostrap test method are used to test the influence paths of the availability of county finance. (3) Results-First, the availability of financial products and services of wood processing enterprises gradually improved from 2008 to 2016. Second, the improvement of the availability of county finance could significantly promote the growth of wood processing enterprises. Third, the availability of county finance had an indirect positive effect on the growth of sample enterprises by reducing financing costs and promoting technological innovation. Fourth, the availability of county finance could promote the growth of large, medium and small wood processing enterprises, and had a positive effect on the growth of enterprises with low and medium asset-liability ratio, while it had no significant effect on the growth of micro-enterprises and enterprises with high asset-liability ratio. In addition, the availability of county finance had a positive effect on the growth of enterprises in central and western China and non-municipal districts, but had a negative effect on the growth of enterprises in eastern China and municipal districts. Fifth, the development of county digital finance and the availability of county finance synergistically promoted the growth of wood processing enterprises. (4)Conclusions and Discussions-Based on the above research conclusions, the following policy suggestions are put forward: First, the counties ( cities and districts) where wood processing enterprises gather should establish and improve the financial system with multiple subjects, multi-level and wide coverage. Expand the spatial coverage of financial institutions ' outlets to wood processing enterprises, deepen the competition mechanism of the banking industry, and create a comprehensive financial service system corresponding to the life cycle of wood processing enterprises. Second, pay attention to the construction of financial system in non-municipal districts and the credit supply of special wood processing enterprises. The governments of non-municipal districts should improve the support policies such as site supply, site rent concessions. In addition, further optimize financial services and innovate financial products. Third, improve the credit support policy for micro wood processing enterprises. Further guide and support commercial banks in innovating service mechanisms for small and micro enterprises, broaden the financing channels of micro wood processing enterprises. [ABSTRACT FROM AUTHOR]

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Assuming responsibility for emission reduction is an important part of participating in the global governance of climate change. Countries with a carbon neutrality target now cover about 75% of global greenhouse gas emissions. Carrying out fairness evaluations of their carbon neutrality targets provide a strong basis for the global carbon inventory. In this paper, the target years of carbon neutrality for major countries and regions under the global target of 2 °C and 1.5 °C are studied using the burden sharing model. On this basis, this paper simulates the possible pathways of carbon neutrality and evaluates the ambition of emission reduction targets in terms of annual emission reduction, per capita emission, and cumulative per capita emission. The results show that, from the perspective of equity, most of the developing countries cannot meet the global goal of 1.5 °C. The United States and the European Union nations could achieve carbon neutrality by 2050 by continuing their annual emission reductions under their existing NDC targets. However, to achieve carbon neutrality by 2060, China's annual emission reduction rate from 2030 to 2050 will be 6.7%, and the annual amount of emission reduction accounts for 51% of the global amount under the 1.5 °C target. Meanwhile, China would become the main force behind global cumulative emissions in the following decades. Thus, the emission reduction pathways China chooses will have an important impact on global climate mitigation progress. Based on the above research conclusions, this paper proposes that developed countries and developing countries should explore bilateral or multilateral cooperation in technology and finance in the field of climate change. Under the great pressure to achieve carbon neutrality, China needs to carry out research on the overall emission reduction pathways as soon as possible and clarify the paths at the scale of sectors, industries, provinces, and time stages. [ABSTRACT FROM AUTHOR]

Copyright of Journal of South China University of Technology (Natural Science Edition) is the property of South China University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Harbour Engineering is the property of Editorial Office of China Harbour Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The low-carbon city pilot policy is an important way to promote corporate green innovation, and it is also an inevitable choice to achieve the goals of achieving peak carbon emissions and carbon neutrality. However, existing research on the impact of the low-carbon city pilot policy on green innovation lacks depth, and literature focusing on micro-corporate level is insufficient. Therefore, it is difficult to provide an effective reference for corporate green transformation. Based on the panel data of 936 A-share listed companies in China from 2007 to 2020, this paper took the low-carbon city pilot policy as a quasi-natural experiment. The multistage dynamic difference-in-differences model and difference-in-difference-in-differences model were used to explore the impact of the low-carbon city pilot policy on corporate green innovation and its heterogeneity in terms of enterprise size, property rights, and carbon emission industry. Furthermore, from the perspective of environmental responsibility and talent agglomeration, this paper discussed the transmission mechanism of this policy to promote corporate green innovation and determined the optimal path for the low-carbon city pilot policy to take. The research results showed that: ① The low-carbon city pilot policy effectively promoted corporate green innovation in the pilot areas. Compared with the green utility model patent innovation, the pilot policy had a more significant impact on green invention patent innovation. A series of robustness tests such as PSM-DID and the placebo test found that the conclusion was still valid. ② The impact of the low-carbon city pilot policy on green innovation presented heterogeneity in terms of enterprise size, property rights, and carbon emission industry. This policy had a more significant policy impact on large-scale enterprises, and only had a positive impact on the utility model patent of state-owned enterprises but had a significant positive impact on the green innovation of non-state-owned enterprises to varying degrees. The low-carbon city pilot policy had a significant positive impact on the green innovation of enterprises in high-carbon industries but had a certain inhibitory effect on the green innovation of enterprises in low-carbon industries. ③ The main transmission mechanism of the low-carbon city pilot policy on the promotion of corporate green innovation was that the pilot policy enhanced the awareness of the environmental responsibility of enterprises by strengthening their management of environmental information disclosure, improving the level of their environmental protection investment, providing government support for their environmental protection, and inducing the effect of talent agglomeration by attracting talented people seeking employment and those who graduated from local universities as well as high-tech talents from enterprises. From the perspective of the transmission path effect, environmental responsibility played a greater role, followed by talent agglomeration. Therefore, the government should keep on expanding the scope of the lowcarbon pilot policy, give more financial and policy support to small and medium-sized technological private enterprises and green environmental protection enterprises, promote the shareholding system reform, mergers, and reorganization of state-owned enterprises, and provide sustainable environmental regulation and assistance to high-carbon emission enterprises. They should also continuously enhance enterprises' environmental responsibility awareness and promote the effect of talent agglomeration to improve the level of green innovation. [ABSTRACT FROM AUTHOR]

Copyright of China Population Resources & Environment is the property of Shandong Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Environmental Science & Technology (10036504) is the property of Editorial Board of Environmental Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)