Search

In order to grasp the research status of different fertilization modes in China's farmland more comprehensively, with papers in core journals of Chinese Peking University collected in CNKI database from 2003 to 2022 as the main research object, this paper analyzed the research status of different fertilization modes from the perspectives of annual number of published papers, published journals, keywords and highly cited papers applying the bibliometrics research method. This study provides reference for the research in this field. [ABSTRACT FROM AUTHOR]

Sophora flavescens, which was first recorded in Shen Nong's Herbal Classic, has the functions of clearing away heat, drying dampness, killing parasites and promoting urination. In its long-term application, traditional Chinese medicine has gradually deepened its understanding of the origin and efficacy of S. flavescens. In order to explore changes in the origin and efficacy of traditional Chinese herb S. flavescens in the history of China and Japan, in this paper, the origin and development of S. flavescens in China and Japan were compared from three aspects; the origin, medicinal efficacy, and processing methods of S. flavescens in China and Japan, hoping to provide clear understanding of the medicinal plant S. flavescens. [ABSTRACT FROM AUTHOR]

The landscape environment of urban blocks plays a significant role in improving the comfort of urban thermal environment and promoting green and high-quality development. The 342 papers related to the research on the impact of urban block landscape environment on thermal comfort in China, collected by CNKI (China National Knowledge Infrastructure) from 2002 to 2022, are used as the research object. Through bibliometric statistical analysis, LLR algorithm, and cluster analysis, the current research status of the impact of urban block landscape environment on thermal comfort in China is analyzed and processed, and its external characteristics are identified. Using the information visualization software CiteSpace, the research topics in the field of the impact of urban block landscape environment on thermal comfort are presented in the form of knowledge graphs. Through co-occurrence analysis of keywords and trend of word frequency changes, the development trends of research hotspots and cutting-edge fields of the impact of urban block landscape environment on thermal comfort are determined, hoping to provide reference for future research in this field. [ABSTRACT FROM AUTHOR]

In recent years, under the influence of multiple factors such as traditional ideas and living economic conditions, the aging population in China continues to increase. Most of the elderly are more inclined to aged at home, and the first places for elderly activities are communities and the surrounding environment, which greatly affects the convenience of life and happiness of the elderly. In this paper, Changxindian area in Fengtai District of Beijing was as the research object, and detailed calculation and analysis were carried out by using POI data and arcGIS software. The relative location of residential areas and surrounding public toilets was explored, and the best location of public toilets in the daily walking area under the model of community home-based care for the elderly was further studied. [ABSTRACT FROM AUTHOR]

At present, there is relatively little research on the synergistic effects of heavy metals in soil, sediment, and bedrock on heavy metal pollution in water bodies. In this paper, heavy metals in soil, sediment, bedrock, and water of a typical karst watershed in southwest China were investigated. The results indicated that the average values of heavy metals in soil and sediment were relatively higher than those in bedrock except for Ni and As. During the research period, As and Cd were the main heavy metal elements polluting the soil and sediment in the study area, while water bodies were mainly polluted by Ni, As, and Cd. The pollution assessment indicated that there were instances of poor or very poor water quality in the study area during the study period; the soil as a whole was slightly polluted by Cd and As; sediment was subject to moderate Cd pollution and mild As pollution. Analysis of geochemical form for heavy metals showed that heavy metals in soil and sediment were mainly in residual form, and the proportions of exchangeable As and Cd were relatively high. Multiple statistical analysis showed that heavy metals in sediment, soil, and bedrock explained 23.8%, 16. 8%, and 16. 2% of the changes in heavy metals of water, respectively. The research results Can provide scientific basis for the prevention and control of heavy metal pollution in water bodies. [ABSTRACT FROM AUTHOR]

[ Objective] The paper uses Geographic Information System (ArcGIS) as a platform to discuss the study of DEM data on the digital construction of rural landscape databases and the coupling relationship in geographic space of rural landscape. The aim is to further expand the coverage of China's land space digitization and provide practical theoretical basis and development possibility of quantitative planning for village level administrative zoning research. [Method] In this paper, Xiangyu Village, Junzhuang Town, Mentougou, West Beijing, is selected as the research object, and the document space database of the study area is constructed by building digital elevation model (DEM), ArcGIS stacked map weighting and visual interpretation methods. Moreover, its elevation equivalence, slope direction, and water flow direction are visually analyzed. [Result] The mountainous terrain and hydrological characteristics of Xiangyu Village are roughly consistent with the village layout; the living environment of Xiangyu Village is consistent with the terrain and texture, and it belongs to the rural landscape system of mountains, valleys and small watersheds. [ Conclusion] The results obtained through data visualization analysis are basically consistent with the traditional village planning pattern of Xiangyu Village; the rural landscape based on village level administrative divisions is still in the traditional planning stage, and there is great development space for village level geographic spatial survey. Therefore, it is necessary for relevant practitioners to make more contributions to fill the full coverage of China's land space digitization. [ABSTRACT FROM AUTHOR]

This study was conducted to provide reference for plant landscaping, optimization of planting structure and rational allocation of species in Cedrus deodcua gardens. [Methods] With three common garden plants in northern China, Trifolium repens L, Poa pralensis L and Trifolium pralense L, as receptors, the effects of four concentrations ( 0.025, 0. 05, 0.075 and 0.10 g/ml) of C. deodara needle extract on seed germination and early seedling growth of the three turf grasses were studied by the Petri dish filter paper method, using a clear water treatment ( 0 g/ml) as control check (CK). Data were subjected to analysis of variance ( ANOVA) and multiple comparisons (Duncan) using SPSS16. 0. [Results] Different concentrations of C. deodcua needle extract had significant inhibitory effects on seed germination, radicle and seedling height growth of T. repens, T. pratense and P. pratensis ( P < 0.05 ), and the inhibitory effects increased with the increase of concentration. When the concentration reached 0. 075 g/ ml, seed germination and seedling growth of T. repens stopped, and radicle and seedling growth of T. pratense and P. pralensis also stopped. When the concentration was equal to 0.10 g/ ml, germination of T. pralense and P. pralensis seeds was inhibited, and the absolute values of allelopathic index was the largest, that is, the inhibitory effects were the largest. And with the increase of concentration, the absolute value of synthetical allelopathic index also increased. The extract of C. deodcua needles contained main allelochemicals leading to the scarcity of understory vegetation. [Conclusions] This study provides a theoretical basis for reasonable garden plant configuration during C. deodara greening and garden landscaping. [ABSTRACT FROM AUTHOR]

In recent years, the problem of pesticide residues in Chinese chives has attracted widespread attention from society. This paper comprehensively analyzed the production and planting situation. quality and safety status and changes in pesticide standards of Chinese chives. and deeply discussed the main quality and safety problems of Chinese chives and their causes. On this basis, it was proposed to improve the quality and safety level of Chinese chives from three aspects; improving limit standards. promoting green production prevention and control techniques. and strengthening supervision on input products. [ABSTRACT FROM AUTHOR]

Trib. Lorantheae is one of the important medicinal plants in traditional medicine. There are 41 genera. 6 genera of which are produced in China, mainly distributed in Southwest China. South China and Central South China. There ar«-many kinds of plants in this family, and 22 species can be used as Chinese medicinal materials in China. The branches and leaves of Trib. Lorantheae are rich in flavonoids, alkaloids, terpenoids. polysaccharides. organic acids and other functional substances. among which flavonoids are one of the important chemical components to exert pharmacological activity. and play an important role in hypoglycemic. lipid-lowering, anti-inflammatory. anti-tumor, anti-oxidation, anti-osteoporosis and so on. In this paper, the chemical composition, extraction method, component analysis and pharmacological action of flavonoids in Trib. Lorantheae plants were reviewed. in order to provide scientific reference for further development and clinical application of flavonoids in Trib. Lorantheae plants. [ABSTRACT FROM AUTHOR]

With the rapid development of the economy, the scale of construction projects in China is gradually expanding. In terms of construction technology, continuous innovation is being made to meet the needs of sustainable development strategies, and green energy conservation technologies have emerged. It has a brand new design concept, and advocates for maximum energy conservation and environmental protection, fundamentally promoting the rational use of resources and space, and preventing the expansion of air and land pollution. First of all, a brief explanation is given on the current development status of green energy conservation technology in this paper. Secondly, through the introduction and analysis of energy conservation technologies and related building cases, the in-depth research on energy conservation measures of buildings is conducted. Finally, the prospects of green energy conservation technologies are proposed based on the current development status in China. This paper has certain reference value for its related engineering and theoretical research. [ABSTRACT FROM AUTHOR]

Greenway is an organic part of urban ecological network system, and its construction is closely related to urban ecological civilization. Urban greenway not only provides elastic space for high-density cities, but also promotes the construction of low-carbon and resilient cities, thus constantly creating ideal living environment. Through visualization analysis of 1,315 literatures on China’s urban greenway included in CNKI from 1986 to the first half of 2022, the paper analyzed the published papers, research strength, research hotspots and frontier trend of China’s urban greenway research based on CiteSpace, in order to provide a reference for future research of urban greenway in China. [ABSTRACT FROM AUTHOR]

In order to further promote the prevention and control research of Panonychus citri and improve its control effect, this paper summarizes the main influencing factors of the outbreak, main control technology and drug resistance of P. ciiti, and puts forward the research focus and control strategy. [ABSTRACT FROM AUTHOR]

The establishment of the territorial spatial plan system is an important space reform act to meet the new era in China. The reform of territorial spatial plans according to classification is in line with the characteristics of China's current territorial spatial administration and urban development. At present, China's provincial and municipal territorial spatial plans have been publicized, and county-level territorial spatial plans are being approved one after another, while the compilation of township-level territorial spatial plans is being carried out in an orderly manner. In this paper, based on the historical background of the establishment of territorial spatial plan system integrating "multiple plans", the background of territorial spatial plans and the important role of county-level territorial spatial plans were first elaborated, and then the progress of the compilation of county-level territorial spatial plans in Jiangxi Province was sorted out. Finally, the problems existing in the compilation were discussed, and corresponding suggestions were put forward to provide a certain reference for the construction of a scientific and reasonable territorial spatial plan system. [ABSTRACT FROM AUTHOR]

With the gradual intensification of aging in China, the issue of elderly care has become the primary issue that needs to be urgently solved in society. The construction of a reasonable and scientific integrated medical and care service system can not only efficiently allocate medical resources and services, but also better meet the needs of the elderly. Due to the involvement of multiple disciplines such as architecture, sociology, psychology, and behavioral science in the construction of the system, as well as the restriction of various objective factors such as medical capacity, spatial scale, and operating costs, the government and elderly care institutions have always been unable to find the best solution for how to scientifically and reasonably construct an integrated medical and care service system. This paper is based on Anshan City, Liaoning Province, which has prominent aging issues and distinct characteristics of the elderly population. Through extensive field research in elderly care institutions, and face-to-face communication with personnel from relevant government departments such as the Municipal Commission on Aging, the Civil Affairs Bureau, the Health Commission, the Medical Insurance Bureau, and the Human Resources and Social Security Bureau, it truly understands the problems that arise in the construction of the urban integrated medical and care service system. From three aspects: urban situation, institutional situation and the needs of the elderly, it is proposed to establish a clear departmental linkage mechanism with clear rights and responsibilities, a policy guarantee mechanism tailored to local conditions, a multi-measure operation mechanism, a technology first intelligent response mechanism, a warm and efficient service mechanism for the people, an overall layout mechanism, an evaluation and supervision mechanism for full process control, and a talent supply mechanism of external introduction and internal training. It aims to provide reference for the construction of an integrated medical and care service system in similar cities. [ABSTRACT FROM AUTHOR]

The external treatment of Zhuang medicine is a treatment method commonly used from outside the human body. The advantages of external treatment methods are easy operation and small side effects. People are more familiar with medicated thread moxibustion, meridian tendon massage, and acupuncture therapy of Zhuang medicine. Although the curative effect of external treatment is significant, it is little known due to insufficient publicity and other factors. The purpose of this project was to comprehensively analyze and organize the latest relevant scientific and technological literature graphs in the study on clinical external treatment of Zhuang medicine using CiteSpace software and adopting the research method of visual literature graph search. Current research status and research development process of the external treatment of Zhuang medicine in Chinese literature were summarized, which has been able to present the current trends and future research prospects of the development and research of external treatment of Zhuang medicine in China in detail and comprehensively. Finally, 307 papers were selected and included. Wei Yingcai and Pang Yuzhou were the authors with the largest number of documents and had formed a stable core research team. The analysis showed that Guangxi University of Chinese Medicine published the largest number of research documents, and there was less cooperation between institutions. At present, the research on the external treatment methods of Zhuang medicine is still in the development stage, which provides ideas and reference for quickly mastering the research hotspot of the external treatment method. [ABSTRACT FROM AUTHOR]

Climate change is currently the biggest environmental challenge facing sustainable development in human society, and it is an inherent requirement for achieving sustainable development by actively addressing climate change. Under the increasingly strict constraints of climate governance, developed countries such as the United States, European Union countries, and Japan have responded and actively formulated low-carbon development goals and policy measures that are in line with their national conditions. These policies mainly involve various fields such as low-carbon technology, energy conservation and emission reduction, and circular development, with clear policy guidance. In this paper, the evolution of policies on marine carbon sink and carbon trading in China is summarized, providing support for better understanding the background of formulating relevant international and domestic policies. [ABSTRACT FROM AUTHOR]

This paper elaborates the occurrence factors and damage characteristics of Tetranychus urticae Koch in China, and emphatically summarizes three main control strategies of T. urticae, namely agricultural control, chemical control and biological control, as well as research progress in its resistance mechanisms. The problems existing in controlling T. urticae and its resistance management strategies are put forward, to provide a theoretical basis for the resistance management and comprehensive control of T. urticae. [ABSTRACT FROM AUTHOR]

With the rapid development of China's social economy, village planning is increasingly important. Departments should fully draw up practical village plan "integrating various plans". In the context of "rural revitalization", how to better promote "rural revitalization" and realize the concept that "lucid waters and lush mountains are invaluable assets" is a difficult problem in front of everyone. After many years of pilot of "integrating various plans", "five levels, three categories and four systems" have been formed, but the territorial spatial planning in the new era under the construction of ecological civilization still faces many problems and challenges. In this paper, the practical village planning of "integrating various plans" under the background of territorial spatial planning was analyzed, aiming to establish and improve a complete rural spatial system and provide an effective scheme for rural governance mechanism by analyzing and refining the key points of rural planning. [ABSTRACT FROM AUTHOR]

Rural revitalization has multiple strategic significance, including improving the capacity of circular development of villages and towns, meeting the basic material needs of the rural population accounting for more than 50% of China's total population, feeding the urban demand back, and building the rural ecological environment to make it green and livable, worthy of attention both inside and outside the society. This paper summarized the low-interference cycle strategy of green livable villages and towns by analyzing the spatial composition of villages and towns and the mechanism of circulation among various elements, forming a set of design strategies, which reduces adverse human interference on the ecology and improves the self-sustaining ability of villages and towns. This paper provides relevant reference suggestions for the construction of green livable villages and towns. [ABSTRACT FROM AUTHOR]

Rape is the third largest oil crop in the world and the first one in China. The national average rapeseed yield is only 2 077. 5 kg/hm², and the rapeseed oil yield is 894 kg/hm². This paper introduced the main types, germplasm resources, breeding bases and breeding progress of Chinese rape, and studied its high-quality varieties, breeding patents and new varieties of agricultural plants. We analyzed the main problems such as serious loss of germplasm resources in Brassica campestris L. and Brasica juncea (L.) Czern. et Cus and weak "agricultural chip" in rape field, and put forward strategies such as strengthening the protection of rape germplasm resources, encouraging the development of " agricultural chip" in rape industry clusters with national advantages and characteristics, and strengthening the protection of agricultural intellectual property rights. [ABSTRACT FROM AUTHOR]

Under the vision of development for the new era, China has entered a stage of high-quality economic development and an important window period in which we have the conditions and ability to address the prominent issue of economic development and ecological protection in a coordinated way. However, all kinds of environmental benchmark values in China are lacking and need to be constantly supplemented and improved. Therefore, exploring and putting forward a simple and efficient method for the transformation of environmental criteria into environmental standards is an important basis for the rapid establishment of relevant environmental criteria system and the effective promotion of the development of environmental standards system towards a scientific and reasonable direction. In this paper, the water environment is taken as the research object. By analyzing the research progress of environmental criteria and standards at home and abroad, and the foreign method of transforming environmental criteria into environmental standards, combined with the problems faced in the process of transforming environmental criteria into environmental standards in China, an effective method to transform China's environmental criteria into environmental standards is analyzed. After analysis and comparison, it is found that the pollution reduction accounting method could achieve their simple and efficient conversion. Under the premise of obtaining environmental criteria for certain pollutants, environmental criteria for certain pollutants could be obtained by distributing pollutants reduction costs, and accounting economic benefits after reaching standard, thus obtaining the environmental standard of this type of pollutant, which provides reference to determine the environmental standard limits of such pollutants. [ABSTRACT FROM AUTHOR]

In recent years, China has formed a more perfect emergency management system, and has achieved more significant results. The form of safety production has maintained a continuous good development trend, showing the characteristics of "two declines, one being basically flat, and one zero occurrence". In order to further strengthen the implementation of production safety responsibilities and resolutely prevent and contain extremely major accidents, the recent national production safety teleconference deployed 15 measures to pay close attention to the implementation, seriously pursue accountability, adhere to the red line, and immediately carry out in-depth and solid production safety inspections across the country. In such a high pressure situation, the ways to effectively carry out the security management of enterprises were briefly described in this paper. [ABSTRACT FROM AUTHOR]

Based on CNKI database, the paper takes journal literatures with the theme of “sports tourism” as the research objects to draw knowledge map through bibliometrics method and CiteSpace software. Moreover, the paper draws knowledge map and analyses for 1,208 periodical literatures with the theme of “sports tourism” in CNKI from 2002 to 2022.The results show that the sports tourism research from 2002 to 2022 can be divided into three stages: The first is the accelerated development stage, which focuses on the industrialization development of sports tourism; The second is the rapid prosperity stage, which focuses on how to promote economic development, and constantly deepen and enrich the connotation of sports tourism industry; The third is the rising stage of fluctuation, which begins to explore new development opportunities of sports tourism from multiple perspectives. Based on keywords co-occurrence analysis and cluster analysis, the research hotspots and changes of sports tourism in China are obtained. Five key research hotspots and three main directions are extracted to provide reference for the development of sports tourism research hotspots in the future. [ABSTRACT FROM AUTHOR]

Over the years, transit-oriented development (TOD) has provided many countries with valuable theoretical methods and experience to deal with urban traffic congestion, environmental pollution, energy consumption and other problems. After decades of rapid urbanization, many cities in China are facing more complex challenges in transportation than ever before. This paper introduces and critically analyzes the practical application of TOD under different backgrounds and modes. Taking Shijiazhuang City, Hebei Province, China as the main case, this paper discusses and evaluates the intervention role of TOD in China’s urban transportation planning, and critically reflects on the deficiency of TOD’s transformation from theory to practice. [ABSTRACT FROM AUTHOR]

With the development o£ China's economy, the implementation scale and scope o£ hydraulic engineering projects are increasing, and the application of anti-seepage technology has an important influence on the construction quality of hydraulic engineering. In this paper, the significance and problems of the application of anti-seepage technology in the construction of hydraulic engineering projects were mainly analyzed, and specific application strategies were proposed. [ABSTRACT FROM AUTHOR]

With the rapid development of urbanization construction in China, population and industries are rapidly gathering in cities, bringing about economic development and also causing a large number of environmental problems, among which PM2 s is the most concerned. In this paper, a spatial gravity center model was used to systematically analyze the spatiotemporal distribution characteristics of PM, s and population scale in China from 1999 to 2016. Conclusions were as below; (1) there were significant regional differences in PM2 s pollution from 1999 to 2016, characterized by a spatial distribution of "high in the north and low in the south, and high in the inland and low in the coastal areas". (2) Nationwide, there was a significant spatial mismatch between the gravity center of PM2 s pollution and the gravity center of population scale, with the two centers showing a trend of reverse dislocation development. [ABSTRACT FROM AUTHOR]

The paper analyzes the changes in insecticide consumption and the proportion of insecticides in pesticides in the world and several typical countries in the pat 30 yeas, in order to provide a reference for scientific treatment of pesticide and further implementation of China's " double reduction" policy. [ABSTRACT FROM AUTHOR]

Ecological livability is one of the important tasks and objectives of the rural revitalization strategy proposed at the 19A National Congress of the CPC. The most precious wealth of the countryside is the excellent ecological environment, and China must unswervingly follow the route of green agricultural development. Based on current research on the relationship between ecological livable and agricultural green development, comprehensive policy documents, journal literature and related reports, this paper explored the background and connotation of ecological livable, the current situation of agricultural green development and existing problems, and profoundly analyzed ecological livable and the internal connection between agricultural green development, aiming to provide theoretical reference and scientific reference for the final realization of ecological livable goal. [ABSTRACT FROM AUTHOR]

[Objectives] To analyze the current research situation, hotspots and trends of curcumin and diabetes in recent 10 years. [Methods] Web of Science database was set as data source, the annual number of papers, the distribution of authors, the distribution of country/institution, the distribution of journals, the distribution of key words in the literature about curcumin and diabetes from January 1,2010 to March 31, 2021 were quantitatively and visually analyzed with the aid of visualization software Bibliometrix. [Results] A total of 475 articles were included, and the annual number of papers was on the rise; the top three high-yielding countries were China (120 papers), India (65 papers), and the United States (58 papers). In terms of international cooperation, China and the United States had the most cooperation (27 papers); the top three high-yielding institutions were Wenzhou Medical University (42 papers), Mashhad University of Medical Sciences (41 papers) and Tehran University of Medical Sciences (30 papers); the most frequently cited authors were Wang Y (19 times), Li X (13 times), Li Y (12 times), Liang G (12 times) and Zhang Y (12 times); the top three journals in number of papers were Diabetology & Metabolic Syndrome (8 papers), PLoS One (8 papers), and European Journal of Pharmacology (7 papers), and the h index was 7,8, and 6, respectively; the most frequently cited journals were Diabetes (496 times), Journal of Biological Chemistry (486 times), PLoS One (347 times), Diabetes Care (284 times), and European Journal of Pharmacology (229 times); the most frequent key words mainly included oxidative stress, curcumin, insulin-resistance and expression; the hotspots were insulin resistance and NF-kP>, mainly focusing on in vitro experiments. [Conclusions] The curcumin has good therapeutic potential in improving insulin resistance, inhibiting inflammation and oxidative stress, etc. The results are expected provide a reference and basis for scientific researchers to understand the current situation of curcumin and diabetes research and cany' out the further research. [ABSTRACT FROM AUTHOR]

Ginkgo biloba resources in China are enormous. With the demand of the market, the preparation and application of flavonoids have become a current research hotspot. The main active substances in G. biloba leaves, flavonoids, have various functional activities and are widely used in fields such as food, medicine, cosmetics, feed, etc. In this paper, the introduction, functional activity, extraction methods, and application research of flavonoids from G. biloba leaves are reviewed, and the development prospects of flavonoids from G. biloba leaves are expected. [ABSTRACT FROM AUTHOR]

In recent years, the winter temperature in southern China decreases year by year, and the phenomenon of freeze-thaw damage is also widespread in hydraulic buildings. In this paper, the freezing-thawing cycle tests of fully graded concrete specimens and corresponding wet sieving suitable for climate conditions in southern China were carried out, and the effects of freezing-thaw cycles on the appearance, mass loss, relative dynamic elastic modulus, internal temperature and strain of fully graded concrete and wet sieving concrete were studied. The splitting tensile strength test of concrete specimens with specified salt freezing cycles was carried out, and the relationship between the strength reduction of fully graded concrete and wet sieving concrete specimens and the number of freeze-thaw cycles was analyzed. The results show that with the increase of freeze-thaw cycles, the properties of fully graded concrete and wet sieving concrete degraded, and the degradation of compressive strength was the most significant, followed by the splitting tensile strength. In the initial stage of the freeze-thaw cycles, the degradation of each property was not obvious, and the deterioration rate of each property increased significantly after 100 freeze-thaw cycles. Besides, the relationship between the splitting tensile strength of fully graded concrete and wet sieving concrete and the internal wave velocity after freeze-thaw cycles was established. The test results can provide theoretical basis for the design, repair, maintenance and life prediction of dams and offshore platforms in southern China. [ABSTRACT FROM AUTHOR]

Objectives] The paper was to establish the quality standard of Shenqi Qiangjing granules and to conduct routine inspection of granular dosage forms. [Methods] The particle size, moisture, loss on drying, dissolubility, content uniformity and microbial limit of Shenqi Qiangjing granules were detected. Radix Astragali, Herba Epimedii, Radix Dipsaci and Fructus Schisandrae Chinensis were qualitatively identified by thin layer chromatography (TLC). [Results] The particle size, moisture, loss on drying, dissolubility, content uniformity and microbial limit of Shenqi Qiangjing granules were all in line with the relevant regulations of Pharmacopoeia of the People's Republic of China (2020 edition). Radix Astragali, Herba Epimedii, Radix Dipsaci and Fructus Schisandrae Chinensis had clear fluorescent spots in TLC assay, and no such spots were found in negative control. [Conclusions] The method has the advantages of simple operation, accurate and reliable results, strong specificity and good repeatability, and can effectively control the quality of Shenqi Qiangjing granules. [ABSTRACT FROM AUTHOR]

Due to the lack of restrictions on the exploitation and use of coal mine resources in early China, many wetland lakes were formed because of the changes in geological structure and groundwater overflows, which seriously damaged the land for production and construction. At present, the research on the key technologies and landscape design of water ecosystems and wetland repair in subsidence areas is still insufficient. By analyzing the current situation of the Pan'an Lake Wetland, this paper focuses on the strategies of wetland repair and landscape design in this resource-exhausted area. Further, it discusses the enlightenment of these strategies for transforming and planning similar areas in China. [ABSTRACT FROM AUTHOR]

All-for-one tourism plays an increasingly important role in the development of national tourism, and rural landscape is endowed with multiple functions in all-for-one tourism pattern. After Yuan’an County was listed as the second batch of national all-in-one tourism demonstration zones, the establishment of all-in-one tourism puts forward higher requirements for the planning and promotion of rural landscape in Yuan’an County. By analyzing the status quo of rural landscape construction through landscape cultural characteristics, landscape differentiation and landscape management mechanism, combined with the current style of Luyuan Village in Yuan’an County, the paper discusses the promotion strategy and implementation approach of rural landscape in the perspective of all-region tourism from natural ecological landscape, settlement life landscape and economic production landscape, in order to bring new thinking for the improvement of rural landscape in China. [ABSTRACT FROM AUTHOR]

With the overall promotion of the rural revitalization strategy, rural tourism has become an effective way to help rural revitalization. Xuwen pineapple field has a unique pineapple planting sightseeing belt in China, which is nicknamed the "sea of pineapple". It has high ornamental value and tourism attraction, and is very suitable for developing rural tourism. In this paper, Xuwen pineapple field is taken as research object. By literature research method and nominal cluster method, the factors influencing the development of rural tourism in Xuwen pineapple field are collected. Using 4P model analysis method and PEST model analysis method, the internal and external factors of rural tourism in Xuwen pineapple field are carefully combed. Finally, SWOT matrix analysis on the development of rural tourism in Xuwen pineapple field is carried out, and the development strategy of rural tourism in Xuwen pineapple field under the background of rural revitalization is obtained. [ABSTRACT FROM AUTHOR]

Tibetan stupas are the symbolic buildings of Tibetan Buddhism, widely distributed on the Qinghai-Tibet Plateau, with a long history and rich cultural connotations, holding a lofty position in the hearts of Tibetan monks and laymen. In the new era of advocating national cultural confidence, Tibetan stupa, as the representative of Tibetan culture, should be explored for its historical significance and artistic value. In recent years, many scholars have conducted in-depth studies on Tibetan stupas from different disciplinary perspectives. In order to further promote the research on Tibetan stupas, this paper reviews the research on Tibetan stupas in China in the past century, and comments on the problems and deficiencies of the research on Tibetan stupas in China in the past century on the basis of the analysis of the previous research status, so as to provide a valuable reference for the further research on Tibetan stupas. [ABSTRACT FROM AUTHOR]

The urban slow traffic system refers to the traffic system in the city that can allow people to walk, ride, travel by bus and other slow travel. Through 4,728 papers on slow moving system in China from 2000 to 2020 included in CNKI, analysis and summary of literature publishing trend, research strength, research focus and development trend are conducted based on CiteSpace software. It is expected to provide reference for future research in this field. [ABSTRACT FROM AUTHOR]

[Objectives] The paper was to identify Alternaría alternata causing leaf spot disease on Huangdi banana in China. [Methods] Fungal isolates were isolated and identified by morphological features, molecular identification and pathogenicity test. [Results] There were light to dark brown, tiny oval spots on leaves. The causal agent isolated from affected leaves was identified as A. alternata based on the morphological properties, coupled with sequence analyses of the internal transcribed spacer (IIS) region, large subunit ribosomal DNA (LSU rD-NA) and the translation elongation factor 1-alpha (TEF-la) gene. Koch's postulates were fuEilled by successful re-isolation of pathogen from the artificial inoculated leaves. [ Conclusions] To our knowledge, this is the first report of leaf spot caused by A. alternata on Huangdi banana in China. The identification of A. alternata as the causal agent of the observed leaf spot disease on Huangdi banana is critical to the prevention and control of this disease in the future. [ABSTRACT FROM AUTHOR]

Expressway toll station is listed by lightning protection experts as one of the five difficult problems in the field of international lightning protection. So far, the direct lightning protection of the expressway toll station is mainly based on the electrical geometry model-rolling ball method. Lightning rod or lightning belt is installed on the high pole lamp of the toll square and the ceiling of the toll island as a flash catching device to intercept lightning. The lightning rod is a section of metal conductor with the tip. From the process of the connection between up leader generated by the lightning rod and down leader of lightning, the lightning rod has the ability to attract the lightning rod, and can prevent lightning strike of the protected objects within a certain range. From the perspective of lightning protection methods and means, lightning protection plays an interception role against lightning discharge, also called interceptor. A large number of practice has proved that the lightning rod plays an important role in protecting the building structure from lightning damage. With the development of electronic information society, the limitations of lightning rod are more and more prominent, resulting in more and more lightning strike accidents. In 2019, China invented a new flash connection device-lightning interceptor that can overcome the limitations of lightning rod and has applied it on expressways, which has achieved remarkable results. In this paper, the physical parameters of lightning receiving process by the lightning interceptor and the lightning rod are compared, and the solution to prevent direct lightning strike at expressway toll station is proposed. [ABSTRACT FROM AUTHOR]

China is striving to achieve "carbon dioxide peaking" in 2030 and "carbon neutrality" in 2060. In addition to optimizing and upgrading the industrial structure and increasing industrial emission reduction, afforestation is an important way to increase forest carbon sinks and achieve carbon dioxide peaking and carbon neutrality. Improved seedlings are significantly better than general seedlings in terms of afforestation adaptability, growth and stress resistance. The use of improved varieties for afforestation can improve the quality of afforestation from the source. Although the growth cycle of economical tree species is short, and the carbon storage does not increase after directional cultivation, they significantly improve the quality and yield, and indirectly reduce carbon emissions compared with ordinary seedlings. Therefore, in agricultural and forestry production, the transformation and utilization efficiency of improved varieties should be improved and the planting structure should be optimized to improve the quality and efficiency and significantly improve the yield and carbon storage, and the management of plantations should be strengthened to help achieve the goal of "carbon neutrality" as soon as possible. This paper analyzed the current situation of improved varieties and plantation management in China, and put forward corresponding countermeasures. [ABSTRACT FROM AUTHOR]

To replace fish meal for aquatic feed and develop new protein source are important requirements to ensure sustainable development of aquaculture industry and food security in China. This paper reviewed the application effects of common protein sources in aquatic animals and some new protein sources with promising application prospects in aquatic animals and the existing problems and solutions, and prospected the development direction of "non-food" new protein sources, hoping to provide reference for the research and technical personnel of aquaculture and aquatic feed production in the research and development of aquatic feed and protein source selection. [ABSTRACT FROM AUTHOR]

Innovation has become the core driving force of economic development and the fundamental guarantee for all countries to keep a foothold among powerful countries. As an important part of the national innovation system, innovation park construction is also the innovation highland that supports regional development in China. This paper systematically summarizes the practical experience of innovation in Silicon Valley and Bangalore software base in India, and put forward such suggestions as combining efficient markets with effective government, strengthening industrial chain, gathering international high-end talents, improving the mechanism for transforming scientific and technological achievements, and accelerating venture capital investment, combined with the main problems existing in the development of innovation park in China. [ABSTRACT FROM AUTHOR]

The memorial hall is an important place to learn red culture in China, which plays a positive role in carrying forward red culture and continuing revolutionary spirit. The outline of the "14th Five-year" plan points out that "it should adhere to the integrated development, shape tourism with culture, highlight culture with tourism, and improve the system of integrated development of culture and tourism". On this basis, it is proposed that the development of memorial halls in the new era needs the integration of culture and tourism. In this paper, the protection status of red culture of Hehan Detachment is investigated, and its existing problems are analyzed. The construction of Hehan Detachment Memorial Hall is taken as research object. The design strategy of the memorial hall is put forward, and rural red culture undertakings and the integrated development of culture and tourism industry are further established and improved. The research could provide a valuable reference for continuing red culture undertakings and innovating the development of culture and tourism industry at present. [ABSTRACT FROM AUTHOR]

Heilongjiang Province is the granary of China, which plays a key role in ensuring the national food security. The total grain output of Heilongjiang Province has ranked first in China for 12 consecutive years. In the past four years, it has been stable at more than 75 billion kg, a record high. One bowl of rice in every nine bowls in China comes from Heilongjiang. The work of weather modification and disaster prevention and reduction is an important measure to ensure the development of agricultural production, and is the key of meteorological services for agriculture. Based on the actual work of artificial weather modification in Heilongjiang Province, this paper analyzes the current situation of ground operation in Heilongjiang Province, studies and judges the safety production, and puts forward reasonable countermeasures. The purpose is to improve the ground operation ability of artificial weather modification and provide safe and scientific services for agricultural production. [ABSTRACT FROM AUTHOR]

Taking 457 papers in core journals of Chinese waterfront landscape included in CNKI database from 2000 to the fi rst half of 2020 as samples, visualization analysis of the number of papers, research institutions, research authors, key words and spatial and temporal distribution of domestic research papers on waterfront landscape in the past 20 years were performed to grasp the dynamic process of the development of domestic waterfront landscape research and clarify the development context, so as to provide academic information with scientific basis and valuable theoretical reference for waterfront landscape related research in China. The results showed that the researches on domestic waterfront landscape presented a downward trend from prosperity to decline; research forces were mainly concentrated in colleges and universities, and most research institutions did not form cooperative relations with authors, and were still in a relatively isolated situation. At present, the research hotspots and frontiers of waterfront landscape in China mainly focus on urban waterfront, urban historical landscape, ecology, cultural landscape and plants landscape. [ABSTRACT FROM AUTHOR]

Embryo cryopreservation is an important part of embryo biotechnology. It plays a key role in the development of quality animal husbandry. However, the effect of in-vivo (in-vitro) embryo freezing of cattle and sheep in China has not reached an expected level, which limits the commercial application of embryo transfer technology. The technical bottleneck that needs to be broken through is that embryos are subject to mechanical damage and protective agent toxicity during freezing and thawing. This paper summarized the successful application of plant antifreeze protein in vitrification preservation of pig embryos, which makes this technology widely used in animal husbandry production, and is of great significance in accelerating the large-scale breeding of improved livestock and saving endangered animals. [ABSTRACT FROM AUTHOR]

The diseases of sweet cheiry caused by viruses and viroids have occurred in the main cherry producing areas of China and are increasing year by year, which has become an important factor affecting the yield and quality of sweet cherry. For this reason, this paper elaborated the prevention and countermeasures of virus diseases from six aspects, including soil treatment, cultivation of disease-free seedlings, prevention of disease and pest damage, reasonable pruning, water management, and treatment of virus diseases, in order to provide technical guidance for the disease resistance, high quality and high yield of facility cheiry, as well as information reference for the further improvement of the technical system of virus disease prevention and cultivation of facility cheiry. [ABSTRACT FROM AUTHOR]

[Objectives] The paper was to study molecular characterization, morphology and pathogenicity of Curvularia pseudobrachyspora, a new causal agent of leaf spot on banana. [Methods] Banana (Musa acuminate') leaves with streaks or long ellipse-shaped lesions were sampled in an orchard of Danzhou City, Hainan Province, China in 2021. Fungus isolates were isolated from the diseased tissues and further identified as C. pseudobrachyspora based on morphological characteristics of colony, conidiophore and spore, phylogenetic analyses of the ITS region, GAP DP and TET-la genes. [Results] In the pathogenicity test, the fungus re-isolated from inoculated leaves with necrotic lesions was identified morphologically and molecularly, fulfilling Koch's postulates. [Conclusions] C. pseudobrachyspora is a new pathogen causing leaf spot of banana in China and the world. [ABSTRACT FROM AUTHOR]

Ecoloyicai environment in China refers te the state of people's tiviny environmeni, which ie mainly represented in soii erosion, garbaye pollution, aie pollution, noise pollution and so on. The basic situation of ecoloyicai environment in China ic tat te yovemancc capacité ic far behind the speed of desfuction, and the ecoloyicai deficit is ymdually expandiny. Excessive deforestation, indiscaminate reclamation, exceediny huntiny, and random wild plants pickiny have been failed te be prohibited. Forest fires and pests and diseases are stilt vet serious threats te forestioc In this paper, based on the yeneralita of sustainable development, a systematic discussion was made te the framework theoa oS sustainable forestro development and sustainable Sorest manayement, followed by further exploration oS forest resources and sustainable development. Moreover, based on the investigation on related concepts of forest resources, review of historic process of forest resources, and analysis on the grim situation of forest resources, some countermeasures were proposed te care out the sustainable utilization of forest resources in Chcna. [ABSTRACT FROM AUTHOR]

Groundwater pollution in north China ir serious, which ir mostOy caused by complee factors. Aiming at the problems such as the unknown reasons lol' tee differences in the migration characteristica ol' typical characteristic pollutante in tee same medium and the unknown migration rules of complee pollutante in soil and groundwater thir paper selected a single sample and a mixed sample of typical characteristic pollutants in coking enterprises te cany out the static adsorption test. The results showed that the distinution coefficients of benzene seoes and aromatic hydrocarbon pollutante in soii - watar wero K4 benzene > K4 toluene > K4 ethylbenzene > K4 pyrene > K4 anthracene > K4 naphthene, and the distribution coefficients of ammonin nitrogen, phenols and cyanogen were K4 ammonig nitrogen > K4 phenols > K4 cyanogen. The overaH distribution coefficient of benzene sere's was highee tian that of PAHs, and it was easier to tobe adsorbed by silty loam. Different earbon and hydrogen mass and even electron disthXution of typical characteestic pollutants led to differences in the migration characteystice of benzene and aromatic pollutants. The more carbon and hydrogen there were, the more even the electron distrinution was, and the more difficue it was to migrate in the soii. Among tie same kind of pollutants, the migration of som plot pollutants was weakee than that el single pollutants. The research could provide tie parameter basis Sor establishing the solute transpot model of groundwater and the design basis foe developing the related risk control and pollution prevention strateaies. [ABSTRACT FROM AUTHOR]