Search

Copyright of Chinese Journal of Agrometeorology is the property of Editorial Board of Chinese Journal of Agrometeorology 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.)

Since the implementation of the major function oriented zoning, the ecological space of key ecological functional areas has continuously expanded, with a significant increase in vegetation coverage. Concurrently, there has been a dual change in population dynamics, characterized by a decrease in total population and an increase in the urban population. Furthermore, significant achievements have been made in economic and social development, and there has been a steady improvement in the functions of ecological security barriers, contributing to an alleviation of tension in human-environment relationships. During the 15th Five-Year Plan period, it is imperative to adhere to the functional orientation primarily focused on providing ecological services or products. While consolidating provisioning, regulating, supporting, and cultural ecosystem services, there is an increased emphasis on enhancing the quality of these services, thereby constructing a more diversified, stable, and sustainable ecological foundation. Furthermore, exploring compatible functions of eco-product development and utilization promote greening and decarbonization, aiming to establish an inclusive conservation approach that advances modernization characterized by harmony between humanity and nature. In the 15th Five-Year Plan period, ecological regions will not only be crucial components of the new territorial security pattern but also pillars of the new territorial development pattern. Optimization recommendations are as follows. From the perspective of strategic patterns, it is necessary to enhance the spatial connection and supply-demand interaction between ecological security barriers and the territorial development pattern. In detail, continued efforts are needed to consolidate the national ecological security barriers, optimize the pattern of key ecological functional areas, integrate the system of natural protected areas, and strictly adhere to ecological conservation red lines. Moreover, a greater focus should be on upgrading quality of ecosystem service functions through classification, fully implementing the holistic approach to protecting and restoring mountains, rivers, forests, farmlands, lakes, grasslands, and sand, actively fostering new growth drivers for green development, accelerating the establishment of a refined zoning control system, and synergistically advancing reforms and innovations of institutions and mechanisms. These measures aim to support high-quality development in ecological regions through high-standard protection. [ABSTRACT FROM AUTHOR]

Urbanized areas are areas whose main function is to provide industrial and service products. During the 15th Five-Year Plan period, the urbanization rate of China's population will exceed 70 percent, thus entering a long-time stage of high urbanization levels. The strategic positioning of urbanized areas will be defined as county-level administrative districts with a high concentration of scientific and technological innovation resources, new quality productivity, and new-type industrialization. In terms of strategic layout, the scope of urbanized areas will be optimized to promote the concentration of population and economy in urban agglomerations, metropolitan areas, and central cities, and to strengthen the suburbanization of mega cities, as well as the integrated development of urban and rural areas. In terms of functional upgrading, it will promote the layout of new quality productivity and new industrialization in different urbanized areas according to their comparative advantages, and strengthen the leading role of Beijing-Tianjin-Hebei, the Yangtze River Delta, the Pearl River Delta, and Chengdu-Chongqing area. In terms of spatial quality, it is necessary to promote the livability, intelligence, and resilience of cities. [ABSTRACT FROM AUTHOR]

Since the 18th National Congress of the Communist Party of China, China's regional coordinated development has shown a sound trend through measures such as poverty alleviation, ecological civilization construction, and the implementation of major regional strategies. During the 15th Five-Year Plan period, China's regional coordinated development is faced with the huge challenge of global resource and environmental supply shortage, slow and weak consumption growth in China and the world's major economies, multi-sided suppression by developed countries, and continuous catch-up by developing countries with low-cost advantages. This study first puts forward some new academic thoughts, such as the equilibrium theory of spatial development, the spatial organization theory of node source and sink in economic network, and the spatial convergence theory of innovation chain-industry chain. On the basis of theoretical innovation, it has clarified the strategic key points of attaching equal importance to creating new driving forces for the development of developed areas and fostering the development of growth poles in underdeveloped areas, as well as taking coordinated regional development as the approach to Chinese-style modernization in the near future. The research holds that scientific and technological innovation plays a leading role in promoting regional coordinated development. Building a regional model of "scientific and technological innovation system + new quality productivity layout" according to local conditions, forming a new development pattern of comprehensive functional areas, promoting the westward shift of the focus of resource utilization industry layout, and attaching importance to cultivating the function of growth poles in key areas should become the main paths for regional coordinated development. Finally, the strategic and fundamental role of the major functional zoning is discussed. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of Sciences 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 Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of Sciences 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 Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of Sciences 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 Remote Sensing is the property of Editorial Office of Journal of Remote Sensing & Science Publishing Co. 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 Functional Materials / Gongneng Cailiao is the property of Chongqing Functional Materials Periodical Press 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.)

Improving carbon sequestration capacity through ecological construction is one of the important ways to achieve the goal of "carbon neutrality" in China. Based on the analysis of the current situation and trend of ecological carbon sequestration in China, this study summarizes the main challenges in the increment of ecosystem carbon sink in China. The current situation and trend, the significant carbon sequestration capacity of forests, the recovery phase of carbon sequestration capacity of grassland, and the carbon sequestration benefits of major ecological projects are also surveyed. Then, the new challenges of China are analyzed, including the backlog of over-mature forests affecting the carbon sequestration capacity of forests, the limited land area suitable for planting forests and grasses, the less diversified investment mechanism of ecological engineering, the imperfect supporting policies and measures for ecological carbon sequestration, and the increasing demand for forest products. To make sure the "peak carbon emissions" and "carbon neutrality" goals reached as schedule, the study points out that it is necessary to optimize the layout of ecological construction and to improve the capacity of ecological carbon sequestration through the optimization of the internal structure of ecosystem and the regional coordination of ecological construction. In terms of the optimization of the internal structure of the ecosystem, several policy suggestions are put forward: restarting orderly renewal and forests logging, enhancing the ecological carbon sequestration capacity of the grassland, and fully implementing the water diversion project on the western line. For example, some related research suggestions are proposed on forest management, including redesigning the forest regeneration route, conducting pilot programs in some forest areas, constructing modern standard system of forest logging, and improving basic facilities of intermediate cuttings. In terms of the land layout optimization of ecological construction, this study suggests that the government should establish an overall planning with differentiated regional carbon neutrality path, promote the coordination of regional ecological protection and clean energy, accelerate the improvement of ecological environment, and utilize national land space highly efficiently. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of Sciences 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 Geoscience is the property of Natural Gas Geoscience 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 Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of Sciences 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.)

Rural poverty was a persistent problem in human society, and a common challenge faced by the whole world, where China is no exception. Many untiring efforts have been made to completely eliminate absolute poverty in China to achieve the goal of poverty reduction 10 years ahead of schedule in the United Nations 2030 Agenda for Sustainable Development. After that, the anti-poverty focus has changed into rural relative poverty since 2020. It is necessary to continuously narrow the development gap between urban and rural areas, thereby promoting the rationed sharing of development achievements. It is highly urgent to quantitatively determine the relationship between rural relative poverty and regional carrying capacity, thereby providing a scientific basis for the simultaneous formulation of intervention measures. Taking the Yangtze River Economic Belt (YREB) as the case area, this study aims to explore the spatial pattern of rural relative poverty and the constraint mechanism of regional carrying capacity. Multi-source databases were established using 1 070 county-level administrative units, including the rural social economy, resources, environment, road traffic, and major function zones. The areas of rural relative poverty were defined to identify the change types. The spatio-temporal evolution of rural relative poverty areas since 2010 was then determined from the multi-scale of the river basin, county, and major function zones. At the same time, an index system of regional carrying capacity was established to quantitatively evaluate the level of relative poverty restricted by regional carrying capacity in rural areas of YREB. Six elements were composed of land resources, water resources, environment, ecology, disaster, and transportation. Furthermore, the hierarchical clustering and binary logistic regression model were used to clarify the poverty-causing effect and the constraint level of regional carrying capacity. The results showed that: 1) The number and population size of rural relative poverty areas in the YREB decreased from 353 and 133.666 million in 2010 to 237 and 89.922 million in 2018, indicating that the precise poverty alleviation strategy was achieved to effectively reduce poverty. 2) The spatial pattern of rural relative poverty areas was generally stable and partially shrinking. Key ecological function zones were focused mainly on stable distribution in Wumeng Mountain, Wuling Mountain, Luoxiao Mountain, Yunnan-Guangxi-Guizhou rocky desertification areas, and western Yunnan Border Mountain. The counties without rural relative poverty were located mainly in the urban agglomeration areas or the periphery of central cities. 3) Ordinal logistic regression model showed that transportation, ecology and disaster carrying capacity were the important factors leading to rural relative poverty in the YREB. The probability of rural relative poverty increased by 120.85%, 30.59%, and 42.43%, when the constraint level of three factors increased by one grade. The probability of poverty in urbanized areas and main agricultural production zones was only 19.87% and 66.00% of that in ecological function zones. 4) There was an obvious conjugacy relation among the carrying capacities of each factor in the rural relative poverty areas, showing the characteristics of global transportation dominance and comprehensive constraints of local ecology, disasters, and land resources carrying capacity. It was suggested to design a differentiated anti-poverty policy system using the constraint degree of regional carrying capacity and the type of regional function, thereby realizing the two-way promotion of sustainable development ability on the regional scale, particularly on the individual ability of sustainable livelihood with farmers as the main body. [ABSTRACT FROM AUTHOR]

Based on the systematic review of the research progress on China's relative poverty, this study discussed the distribution characteristics of the relative poverty areas (RPAs), the basis of regional function types, and proposed the policy recommendations. There are three main periods concerning sustainable development research on RPAs: (1) The concept of "relative poverty" was adopted for the first time to carry out scientific research on regional sustainable development. (2) It supported the RPAs to become an important type of the area to promote sustainable development policies in underdeveloped areas in China. (3) It deployed a protracted battle in advance to support the development of RPAs before the comprehensive accomplishment of anti-poverty. The change characteristics of the RPAs and the regional function types indicated that the scale of the relative poverty population in China has remained at around 200 million for a long time, and the pattern of concentrated distribution has not changed. Meanwhile, taking ecological service function as the main regional function types, areas with and lack of development conditions coexist in the RPAs constrained by the natural carrying capacity. Policy recommendations are proposed to promote the simultaneous realization of modernization in the RPAs on a higher stage as follows. From a global perspective, the optimization regulation and spatial governance of the Man-Land system should be carried out to stabilize the national defense, ecological, food, energy, and social security. For regions with development potential, the comparative advantages of the resources and ecology should be transformed into economic advantages through mechanism innovation, thereby solving the intergenerational transfer under "path dependence" and the interregional exfoliation under the "Matthew effect". For regions lack of development conditions, natural carrying capacity should be steadily unloaded, the mountain, forest, farmland, lake, and grassland should be conserved systematically, and the equalization level of basic public services should be improved comprehensively. [ABSTRACT FROM AUTHOR]

During the period of 14th Five-Year Plan, modernization of space governance and optimization of regional economic layout are the important parts of planning and development. Since the reform and opening up, China's regional economic layout has adopted the guiding ideology of "some regions get rich first", which has rapidly driven the overall improvement of national strength, but the development gap between regions has continued to widen. The open economy and the non-state-owned economy are developing rapidly, but there are shortcomings in the security and advancement of the economic system, and the reform of the state-owned economy is still insufficient. China's space governance has made remarkable progress, but in terms of legalization and scientization, learningoriented government and democratic governance, and systematic governance, there is a big gap with modernization requirements. During the 14th Five-Year Plan period, the key points of space governance modernization include: improving the space governance model in which the government, the market, the social organizations, and the public participate together; improving a regional policy system that puts equal emphasis on fairness and benefits, government regulation, and market optimization allocation, issues and goals, and constraints and incentives; and developing a new mechanism for regional coordination that meets the requirements of highquality development. The major measures of the regional economic layout are continuously enhancing the energy levels of urban agglomerations, metropolitan areas and regional central cities, and practicing the new model of achieving balanced and coordinated regional development in the process of population economic agglomeration. It should take the opportunity of restructuring China's relatively complete industrial system as an opportunity to create a new pattern in the distribution of major productive forces, and launch the great project of high-quality development in northwest China to cultivate the new driving force of development and prosperity in relatively poor areas. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of Sciences 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 Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of Sciences 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 Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of Sciences 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 Bulletin of the Chinese Academy of Sciences / Chung-kuo ko Hsueh Yuan Yuan Kan is the property of Institutes of Science & Development, Chinese Academy of Sciences 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.)

Civitas Pre-M1xed (referred to as Civitas) is a food-grade synthetic isoparaffin emulsifier compound produced by Petro-Canada. The safety of Civitas was evaluated using seed germination and pot experiments in this study. At the same time, the sensitivity of Alternaria alternata isolated from tobacco to Civitas and the effects of Civitas on tobacco brown spot disease were determined using mycelial growth rate and potting methods. The seed germination rate of the control was 82.7%. After treated by 5% and 10% aqueous solution of Civitas, the seed germination rates decreased to 58.3% and 32.1%, respectively, while 1% and 0.1% of Civitas had no significant inhibitory effect on seed germination. 20% and 10% aqueous solution of Civitas had a certain inhibitory effect on the plant height and stem circumference in the rosette stage. However, 5% and 1% aqueous solution of Civitas had no such effect. None of the tested aqueous solutions of Civitas had inhibitory effect on the growth of the plant height in the bud stage, but 20% and 10% aqueous solution of Civitas had a certain inhibitory effect on the stem growth during this stage. In addition, the aqueous solutions of different volume fraction of Civitas showed a certain degree of inhibitory activity against A. alternata, and the inhibitory effect which was improved with the increase of volume fraction. When the volume fraction of Civitas solution was 20%, the inhibition rate was 54.1%. Civitas exhibited curative and preventive effects against tobacco brown spot disease 10 days after foliar spray treatment with 5% Civitas, disease of tobacco caused by A. alternata was reduced by 59.3% in preventive trials, and by 19.6% in curative trials. The results have provided reference and basis for the further safety evaluation of Civitas and its potential applications. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Natural Resources / Ziran Ziyuan Xuebao is the property of Journal of Natural Resources 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 Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science 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 Tunnel Construction / Suidao Jianshe (Zhong-Yingwen Ban) is the property of Tunnel Construction 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 Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal 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.)