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Contour Farming Suitability of the Black Soil Region in Northeast China and Its Spatial Characteristics
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作者 LI Yong ZHENG Shufeng +4 位作者 LIU Huanjun LUO Chong MENG Linghua WANG Yue WANG Liping 《Chinese Geographical Science》 SCIE CSCD 2024年第6期1119-1133,共15页
Contour farming technology plays a key role in reducing soil erosion,enhancing water use efficiency,and fostering sustain-able agricultural development,Despite being a straightforward yet efficacious farming technique... Contour farming technology plays a key role in reducing soil erosion,enhancing water use efficiency,and fostering sustain-able agricultural development,Despite being a straightforward yet efficacious farming technique,it has not seen widespread implement-ation in China.Considering the deteriorating quality of arable lands in the Black Soil Region of Northeast China(BSR-NEC),it is ne-cessary to investigate spatial patterns and identify suitable areas for contour farming in this region.To achieve this objective,spatial autocorrelation and grouping analysis methods were employed to classify the land into four categories of suitability for contour farming:highly suitable,moderately suitable,generally suitable,and unsuitable.The results reveal that:1)the contour farming suitable area in BSR-NEC covers 89861.32 km^(2),accounting for 21.59%of arable land as of 2020.Heilongjiang Province owns the largest suitable area of 32853.68 km^(2),and Inner Mongolia has the highest proportion of 28.89%.2)In terms of the spatial distribution,regions with higher suitability for contour farming are concentrated in the Da Hinggan Mountains region,particularly Nenjiang City(Heilongjiang Province),which has the highest area of 2593.07 km^(2).Areas with a high proportion of suitable arable lands for contour farming are mainly found in the Da Hinggan Mountains and Changbai Mountains regions,with Ergun City(Inner Mongolia)having the highest pro-portion at 47.2%.Regions with higher suitability and proportion are concentrated in the Da Hinggan Mountains region,primarily cover-ing the Inner Mongolia and Heilongjiang.3)Regarding spatial clustering,both the area and proportion of suitable contour farming areas exhibit noticeable clustering effects,though not entirely consistent.4)Group analysis results designate 148 counties in BSR-NEC as highly suitable areas,predominantly located in the Changbai Mountains region,Liaodong Peninsula,Hulun Buir Plateau,and the north and south regions of the Da Hinggan Mountains.The zoning of suitable areas for contour farming in BSR-NEC informs the strategic de-velopment of policies and measures,allowing for the implementation of targeted policies in distinct areas suitable for contour farming.This provides a valuable reference for promoting contour farming technology more effectively and efficiently.re effectively and effi-ciently. 展开更多
关键词 contour farming spatial heterogeneity zoning policy spatial autocorrelation Black Soil Region of Northeast China(BSR-NEC)
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The Exorbitant Privilege of US Treasuries and China's Choices in the New Era
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作者 Di Dongsheng Wang Xueying 《Contemporary International Relations》 2024年第4期4-25,共22页
After the decoupling of the US dollar from gold in 1971,US Treasuries replaced gold as the value benchmark of the international monetary system and acquired an exorbitant privilege.Subsequently,the total amount of US ... After the decoupling of the US dollar from gold in 1971,US Treasuries replaced gold as the value benchmark of the international monetary system and acquired an exorbitant privilege.Subsequently,the total amount of US debt exhibited an exponential expansion trend,unbound by any substantial constraints.The so-called debt ceiling is a partisan game rather than a rigid fiscal constraint on the United States.As long as there are no fundamental changes in the global monetary system,the international credit of US Treasuries will stay stable,and their trend of infinite expansion will be sustained.Massive quantitative easing policies have failed to significantly shake this stability,and the notion of global investors offloading US Treasuries is more an illusion than a fact.The exorbitant privilege of US Treasuries grants its federal government the“freedom to borrow,”shielding the American financial sector from due penalties during global financial crises and securing excessive returns in global capital cycles.In the old days when running“twin surpluses”on capital and current accounts,China kept the value of Renminbi low to support its export manufacturing sector along the southeast coast.As a result,China accumulated huge foreign exchange reserves,mainly US Treasuries.Nowadays,this practice is no longer necessary,yielding low returns and posing significant security risks. 展开更多
关键词 debt ceiling de-dollarization foreign exchange reserves transformation of the international monetary system US Treasuries
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The Adjustment of NATO’s Space Policy and Its Implications
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作者 He Qisong 《China International Studies》 2024年第4期155-176,共22页
Under the US leadership,NATO has been adjusting its space policy and strengthening its space deterrence capabilities to address the so-called“threat”from China and Russia.While the deterrent effect of NATO’s space ... Under the US leadership,NATO has been adjusting its space policy and strengthening its space deterrence capabilities to address the so-called“threat”from China and Russia.While the deterrent effect of NATO’s space policy remains to be seen,the various measures taken to implement the policy will have a considerable impact on the global space landscape,accelerating the weaponization of space and making it more difficult to prevent an arms race in space and govern space security. 展开更多
关键词 NATO POLICY LANDSCAPE
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“One Core,Two Sources”:The Endogenous Logic of China’s Path to Develop Human Rights from the Perspective of“Two Integrations”
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作者 LIU Ming 《The Journal of Human Rights》 2024年第5期1014-1030,共17页
The development of China’s human rights path is driven by both external and internal factors,influenced by general principles of human rights worldwide while also following China’s own endogenous logic.The concept o... The development of China’s human rights path is driven by both external and internal factors,influenced by general principles of human rights worldwide while also following China’s own endogenous logic.The concept of the“Two Integrations”reflects the continuous theoretical innovation of the Chinese Communist Party based on China’s national conditions,significantly illustrating the endogenous logic of China’s human rights path.Among these,the“basic principles of Marxism”occupy a“core”position within the endogenous logic of China’s human rights path,and to some extent,embody an understanding of the inherent laws of human rights.Meanwhile,“China’s specific realities”and“fine traditional Chinese culture”serve as the“living water sources”for the ongoing advancement of China’s human rights.The“Two Integrations”represent an intrinsic requirement of historical materialism and practical materialism.The logical structure of“One Core,Two Sources”explains the endogenous nature of China’s human rights path,offering both an interpretation of the driving forces behind China’s human rights path and a defense of its rationality. 展开更多
关键词 “two integrations” endogenous nature of human rights “One Core Two Sources” China’s human rights path
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Viewing Chinese modernization and Its Requirements for Human Rights Protection from the Perspective of Human Development
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作者 常健 QIAN Chuijun 《The Journal of Human Rights》 2024年第1期42-75,共34页
Modernization,as a specific stage in the historical development of human society,possesses a multi-layered composite structure,with each layer playing both a promoting and inhibiting role in human development and dign... Modernization,as a specific stage in the historical development of human society,possesses a multi-layered composite structure,with each layer playing both a promoting and inhibiting role in human development and dignity simultaneously.Chinese modernization is a strategic choice made based on lessons learned from various experiences of modernization processes in other countries,reflecting judgments on the benefits and choices on the values of human development and dignity in modernization.It values the promotion of the free and well-rounded development of all individuals as its standard,demanding the full realization of the positive effects of modernization on human development and the overcoming of its negative effects.Human rights,aiming to promote the free and well-rounded development of every person as the ultimate value goal,are not only an intrinsic structural element of the modernization stage but also a social normative tool that restrains the direction of modernization development,aligning closely with the values pursued by Chinese modernization.Chinese modernization poses dual requirements for human rights protection:on the one hand,it demands the affirmation and promotion of the positive effects of modernization on human development and dignity through human rights standards,and on the other hand,it requires the prevention and mitigation of the negative effects of modernization on human development and dignity through human rights standards.There exists a certain tension between these two dimensions,necessitating an appropriate balance and thereby presenting corresponding requirements for China’s approach to human rights protection. 展开更多
关键词 Chinese modernization human development and dignity human rights standards
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Cooperative Production and Adaptive Momentum:The Constructive Logic of the New Rural Governance System in Ethnic Regions of China
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作者 Xintao Li Yutong Xiao Jing Zhang 《Macro Management & Public Policies》 2024年第2期1-19,共19页
The traditional governance model and hierarchical structure in China’s ethnic minority regions are inadequate for advancing farmers’income and modernizing rural governance.Moreover,these traditional structures have ... The traditional governance model and hierarchical structure in China’s ethnic minority regions are inadequate for advancing farmers’income and modernizing rural governance.Moreover,these traditional structures have resulted in governance challenges including unequal allocation of rural resources,absence of villagers’agency,and lack of resource transparency.This study delves into the systematic structure of the“rural governance system in ethnic minority areas”.This study samples advanced ethnic minority township governance models from seven provinces,including Guangxi,Qinghai,and the Tibet Autonomous Region in China,and employs Grounded Theory to encode and analyze sub-elements within their governance systems.Subsequently,it investigates the construction logic of a novel rural governance system.(1)The research reveals that primary-level Party organization play a pivotal role in connecting bilateral delegated agency relationships,thereby establishing a mutually cooperative“chain-like”structure in village governance systems within ethnic minority areas.(2)The study identifies two cooperative production paths of the new rural governance in ethnic minority areas:top-down field-oriented party-government integrated governance and bottom-up legalized multi-subject collaborative governance.(3)By employing“integration means-bilateral mobilization”as the mechanism for momentum adjustment and relying on social autonomy,grassroots party organizations shape the momentum adjustment of the new rural governance system in ethnic minority areas.They do so by leveraging both formal and informal governance methods within this framework.Consequently,this study offers pertinent policy recommendations aimed at resolving the challenges of interest coordination and uneven development in ethnic minority areas amidst China’s governance modernization efforts. 展开更多
关键词 Rural governance system Political party organization Grounded theory Ethnic minority regions
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Agents of Change
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作者 BUSANI NGCAWENI 《ChinAfrica》 2024年第7期34-35,共2页
After three decades of experimentation,successes and failures,the public institutions are playing a role in creating social transformation in South Africa The success of public institutions is deeply rooted in their a... After three decades of experimentation,successes and failures,the public institutions are playing a role in creating social transformation in South Africa The success of public institutions is deeply rooted in their ability to plan with a long-term perspective,think in generational terms and execute mandates diligently. 展开更多
关键词 institutions THINK creating
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Global Development Initiative and the Reform of Global Development Governance System
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作者 Wang Mingguo 《Contemporary World》 2024年第6期32-37,共6页
As a systematic initiative to advance global development,the Global Development Initiative (GDI) represents an important international public goods China offers to the world in the new era.Chinese President Xi Jinping... As a systematic initiative to advance global development,the Global Development Initiative (GDI) represents an important international public goods China offers to the world in the new era.Chinese President Xi Jinping first proposed the GDI at the General Debate of the76th Session of the United Nations General Assembly in September 2021,calling for concerted efforts of the international community to stay committed to a people-centered approach. 展开更多
关键词 GLOBAL COMMITTED GOODS
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Study protocol: A national cross-sectional study on psychology and behavior investigation of Chinese residents in 2023
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作者 Diyue Liu Siyuan Fan +57 位作者 Xincheng Huang Wenjing Gu Yifan Yin Ziyi Zhang Baotong Ma Ruitong Xia Yuanwei Lu Jingwen Liu Hanjia Xin Yumeng Cao Saier Yang Runqing Li Han Li Ji Zhao Jin Zhang Zheng Gao Yaxin Zeng Yixiao Ding Zhuolun Ren Yan Guan Na Zhang Jia Li Yan Ma Pei Wei Jingjing Dong Yajing Zhou Yong Dong Yan Qian Chen Chen Yujie Zhao Yimiao Li Yujia Zheng Rongyi Chen Xiaomeng Li Yuke Han Yaoyao Xia Huixin Xu Zhaolin Wu Mingyou Wu Xinrui Wu Junyi Hou Yuelai Cai Xiaofan Dai Wenbo Li Ting Nie Chongzhe Zhang Xiaoya Wang Dan Li Siyao Yan Zhiheng Yi Chenxi Liu Xinyue Zhang Lei Shi Haomiao Li Feng Jiang Xiaoming Zhou Xinying Sun Yibo Wu 《Health Care Science》 2024年第6期475-492,共18页
Introduction:This study protocol specifies the primary research line and theoretical framework of the 2023 Survey of the Psychology and Behavior of the Chinese Population.It aims to establish a consistent database of ... Introduction:This study protocol specifies the primary research line and theoretical framework of the 2023 Survey of the Psychology and Behavior of the Chinese Population.It aims to establish a consistent database of Chinese residents'psychological and behavioral surveys through multi-center and large-sample cross-sectional surveys to provide robust data support for developing research in related fields.It will track the public's physical and psychological health more comprehensively and systematically.Methods:The study was conducted from June 20,2023 to August 31,2023,using stratified and quota sampling methods.A total of 150 cities across 800 communities/villages were surveyed,selected from China(Despite extensive coordination,we have been unable to contact our counterparts in the Taiwan region of China to obtain relevant statistical data).The questionnaires were distributed to the public one-on-one and face-to-face by trained surveyors.The questionnaires included basic information about the individual,personal health status,basic information about the family,the social environment in which the individual lives,psychological condition scales,behavioral level scales,other scales,and attitudes towards topical social issues.Supervisors conducted quality control during the distribution process and returned questionnaires,logically checked and cleaned for data analysis.Discussion:Data collection has been finished,and scientific outputs based on this data will support the development of health promotion strategies in China and globally.In the aftermath of the pandemic,it will guide policymakers and healthcare organizations to improve their existing policies and services to maximize the physical and mental health of the Chinese population.Trial Registration:This study was filed in the National Health Security Information Platform(Record No.:MR-37-23-017876)and officially registered in the China Clinical Trials Registry(Registration No.:ChiCTR2300072573). 展开更多
关键词 Chinese residents physical and psychological health health behavior cross-sectional study
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Walk the Talk South Africa should use its G20 presidency in 2025 to work on bridging the gap between rhetoric and tangible outcomes
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作者 BUSANI NGCAWENI 《ChinAfrica》 2025年第3期42-43,共2页
As the 2025 G20 presidency,South Africa hosted the G20 Foreign Ministers’Meeting in Johannesburg on 20-21 February,which will convene foreign ministers of G20 members such as Chinese Foreign Minister Wang Yi.This is ... As the 2025 G20 presidency,South Africa hosted the G20 Foreign Ministers’Meeting in Johannesburg on 20-21 February,which will convene foreign ministers of G20 members such as Chinese Foreign Minister Wang Yi.This is an important event before the G20 Johannesburg Summit in November. 展开更多
关键词 G20 iden Africa
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Comparative Analysis of Influence Factors on Arable Land Use Intensity at Farm Household Level:A Case Study Comparing Suyu District of Suqian City and Taixing City,Jiangsu Province,China 被引量:16
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作者 LU Xiao HUANG Xianjin +3 位作者 ZHONG Taiyang ZHAO Xiaofeng CHEN Yingxue GUO Shuiqiong 《Chinese Geographical Science》 SCIE CSCD 2012年第5期556-567,共12页
Using data from the farm household survey conducted in 2009,arable land use intensity(ALUI)and its influence factors at farm household level were investigated by the Tobit model.Suyu District of Suqian City and Taixin... Using data from the farm household survey conducted in 2009,arable land use intensity(ALUI)and its influence factors at farm household level were investigated by the Tobit model.Suyu District of Suqian City and Taixing City of Jiansu Province,China were chosen as the regions for comparison.The results show that:1)On the average, the ALUI,labor intensity,yield-increasing input,and labor-saving input are 15 238.14 yuan(RMB)/ha,192 d/ha, 7233.01 yuan/ha,and 2451.32 yuan/ha in the less economically developed Suyu District,and 13 020.65 yuan/ha,181 d/ha,5871.82 yuan/ha,and 2625.97 yuan/ha in more economically developed Taixing City.The figures indicate that Suyu District has higher ALUI and labor intensity input but lower labor-saving input.2)Comparing all the influence factors,the total arable land area in available and average plot size have bigger effects on arable land intensive use;to a small degree,family′s non-farm income affects labor intensity,yield-increasing input,and labor-saving input;the yield-increasing input decreases significantly when the householder has higher education attainment;the commercialization rates of agricultural products and the planting proportion of cash crops both have unstable influence on ALUI; the share of arable land rented in has few impacts on labor intensity,yield-increasing input,and labor-saving input. 3)There are no differences found in the internal impact mechanism of influence factors on the arable land intensive use behaviors of farm households.However,there are conspicuous disparities in the impact degrees and statistical significance based on varying economic levels.4)Using the results as bases,this study proposes that the government should implement land management and agricultural policies according to local condition.And these policies should decrease land fragmentation to promote scale management of land and arable land use intensification. 展开更多
关键词 arable land use intensity (ALUI) labor intensity yield-increasing input labor-saving input comparativeanalysis farm household
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Impact of Regional Development on Carbon Emission: Empirical Evidence Across Countries 被引量:8
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作者 LI Guoping YUAN Yuan 《Chinese Geographical Science》 SCIE CSCD 2014年第5期499-510,共12页
Global warming is recently an urgent issue worldwide. The increase of carbon emissions induced by human economic activi- ties has become a major driving force behind global climate change. Thus, as a matter of social ... Global warming is recently an urgent issue worldwide. The increase of carbon emissions induced by human economic activi- ties has become a major driving force behind global climate change. Thus, as a matter of social responsibility, reasonable carbon con- straints should be implemented to ensure environmental security and sustainable development for every country. Based on a summary of studies that examined the relationship between carbon emissions and regional development, this paper shows that human activity-led carbon emission is caused by the combination of several influencing factors, including population size, income level, and technical pro- gress. Thus, a quantitative model derived from IPAT-ImPACT-Kaya series and STIRPAT models was established. Empirical analysis using multivariate nonlinear regression demonstrated that the origins of growing global carbon emission included the increasing influ- encing elasticity of the population size and the declining negative effect of technical progress. Meanwhile, in context of classification of country groups at different income levels, according to the comparison of fluctuating patterns of the influencing elasticity, technical progress was found as the main factor influencing carbon emission levels in high-income countries, and population size might he the controlling factor in middle-income countries. However, for low-income countries, the nonlinear relationship between carbon emission and its influencing factors was not significant, whereas population growth was identified as an important potential driving force in future carbon emissions. This study can therefore provide a reference for the formulation of policies on carbon constraints, especially to de- velop more efficient carbon mitigating policies for countries at different income levels. 展开更多
关键词 carbon emission regional development population size income level technical progress
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Empirical Study on Effect of Industrial Structure Change on Regional Economic Growth of Beijing-Tianjin-Hebei Metropolitan Region 被引量:7
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作者 CHEN Hongxia LI Guoping 《Chinese Geographical Science》 SCIE CSCD 2011年第6期708-714,共7页
Based on the data of gross domestic product(GDP),industrial added value and the proportion of industrial employees from 2000 to 2008,this paper studies the effect of industrial structure change on the regional economi... Based on the data of gross domestic product(GDP),industrial added value and the proportion of industrial employees from 2000 to 2008,this paper studies the effect of industrial structure change on the regional economic growth of Beijing-Tianjin-Hebei Metropolitan Region in China using the shift-share method.The results show that:1) In the 21st century,the industrial output of three industries,namely,primary,secondary,and tertiary,and the GDP grew rapidly in the study period.The tertiary industry grew the fastest;it had the largest contribution to the GDP and mean-while had become the most competitive industry in the metropolitan region.2) The development of cities within the region was not balanced.Firstly,compared with Tianjin,Beijing,as one of the two core cities,was more rational in the industrial structure.Secondly,the surrounding eight cities,which are Shijiazhuang,Qinhuangdao,Tangshan,Langfang,Baoding,Cangzhou,Zhangjiakou,and Chengde,were all uncompetitive than the two core cities.3) There was a great industrial gradient in the region(especially between the two core cities and the cities of Tangshan,Baoding,Zhangjia-kou,Chengde,Cangzhou,and Langfang).As a result,it is foreseeable that the industry transfer in the Bei-jing-Tianjin-Hebei Metropolitan Region will be one of the trends in regional development,and the industry transfer is inevitably to promote the regional integration. 展开更多
关键词 Beijing-Tianjin-Hebei Metropolitan Region economic growth shift-share analysis industrial structure
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Monitoring the impact of climate change and human activities on grassland vegetation dynamics in the northeastern Qinghai-Tibet Plateau of China during 2000–2015 被引量:13
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作者 XIONG Qinli XIAO Yang +8 位作者 Marwa Waseem A HALMY Mohammed A DAKHIL LIANG Pinghan LIU Chenggang ZHANG Lin Bikram PANDEY PAN Kaiwen Sameh B EL KAFRAWAY CHEN Jun 《Journal of Arid Land》 SCIE CSCD 2019年第5期637-651,共15页
Climate change and human activities can influence vegetation net primary productivity(NPP), a key component of natural ecosystems. The Qinghai-Tibet Plateau of China, in spite of its significant natural and cultural v... Climate change and human activities can influence vegetation net primary productivity(NPP), a key component of natural ecosystems. The Qinghai-Tibet Plateau of China, in spite of its significant natural and cultural values, is one of the most susceptible regions to climate change and human disturbances in the world. To assess the impact of climate change and human activities on vegetation dynamics in the grassland ecosystems of the northeastern Qinghai-Tibet Plateau, we applied a time-series trend analysis to normalized difference vegetation index(NDVI) datasets from 2000 to 2015 and compared these spatiotemporal variations with trends in climatic variables over the same time period. The constrained ordination approach(redundancy analysis) was used to determine which climatic variables or human-related factors mostly influenced the variation of NDVI. Furthermore, in order to determine whether current conservation measures and programs are effective in ecological protection and reconstruction, we divided the northeastern Qinghai-Tibet Plateau into two parts: the Three-River Headwater conservation area(TRH zone) in the south and the non-conservation area(NTRH zone) in the north. The results indicated an overall(73.32%) increasing trend of vegetation NPP in grasslands throughout the study area. During the period 2000–2015, NDVI in the TRH and NTRH zones increased at the rates of 0.0015/a and 0.0020/a, respectively. Specifically, precipitation accounted for 9.2% of the total variation in NDVI, while temperature accounted for 13.4%. In addition, variation in vegetation NPP of grasslands responded not only to long-and short-term changes in climate, as conceptualized in non-equilibrium theory, but also to the impact of human activities and their associated perturbations. The redundancy analysis successfully separated the relative contributions of climate change and human activities, of which village population and agricultural gross domestic product were the two most important contributors to the NDVI changes, explaining 17.8% and 17.1% of the total variation of NDVI(with the total contribution >30.0%), respectively. The total contribution percentages of climate change and human activities to the NDVI variation were 27.5% and 34.9%, respectively, in the northeastern Qinghai-Tibet Plateau. Finally, our study shows that the grassland restoration in the study area was enhanced by protection measures and programs in the TRH zone, which explained 7.6% of the total variation in NDVI. 展开更多
关键词 climate change human activities NDVI variation Qinghai-Tibet PLATEAU REDUNDANCY analysis vegetation net primary productivity
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Sustainable Intensification of Cultivated Land Use and Its Influencing Factors at the Farming Household Scale: A Case Study of Shandong Province, China 被引量:5
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作者 NIU Shandong LYU Xiao +2 位作者 GU Guozheng ZHOU Xiaoping PENG Wenlong 《Chinese Geographical Science》 SCIE CSCD 2021年第1期109-125,共17页
Promoting the sustainable intensification of cultivated land use(SICL) has become crucial for ensuring a sufficient supply of grain and important agricultural products, as well as for the sustainable use of resources.... Promoting the sustainable intensification of cultivated land use(SICL) has become crucial for ensuring a sufficient supply of grain and important agricultural products, as well as for the sustainable use of resources. Taking widely used areas of Shandong Province in China as examples, an analytical scale and level framework for SICL is constructed in this study. It measures the level of SICL through material flow analysis, constructs Tobit models to analyze the influencing factors of SICL at the farming household scale,and analyzes the transition mechanisms of SICL. The results show that the overall level of SICL in Shandong Province is low, and the spatial distribution is uneven. There are relatively more farmers participating in unsustainable intensification than in medium or low levels of SICL, with farmers working at a high level of SICL making up the smallest proportion. The factors that determine the level of SICL at which farmers work vary significantly. More male farmers operate at a low SICL level than female farmers, while females outnumber males at a high SICL level. This is mainly related to the regional distribution of age and population. Meanwhile, with larger cultivated land areas, there is a lower degree of land fragmentation, with a higher level of SICL corresponding to a smaller distance to the nearest town closer within 1–5 km from the town center. We can see the level of SICL and its processes themselves are closely related to time and space scales. Based on the above analysis, it is necessary to clarify the standard processes of SICL to adapt them to local conditions. This includes instructing managers on how to improve resource utilization, increase the sustainable development of cultivated land and establish a comprehensively efficient and functional SICL mechanism. The sustainable intensification of cultivated land use and its specific application in the new era are conducive to enriching the frontier theories and methodology of sustainable development, and are of great significance to the advancement of green agriculture and the decision-making of rural high-quality development. 展开更多
关键词 cultivated land use sustainable intensification farming household scale material flow analysis
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Assessing the Impacts of High Speed Rail Development in China’s Yangtze River Delta Megaregion 被引量:9
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作者 Xueming Chen 《Journal of Transportation Technologies》 2013年第2期113-122,共10页
This paper assesses the impacts of high speed rail (HSR) development in the Yangtze River Delta (YRD) Megaregion, China. After giving an introduction and conducting a literature review, the paper proposes a pole-axis-... This paper assesses the impacts of high speed rail (HSR) development in the Yangtze River Delta (YRD) Megaregion, China. After giving an introduction and conducting a literature review, the paper proposes a pole-axis-network system (PANS) model guiding the entire study. On the one hand, the HSR projects in the YRD Megaregion are expected to generate significant efficiency-related transportation and non-transportation benefits. As a result, the spillover effects from Shanghai and other major cities (poles) will greatly promote the urban and regional developments along the major HSR corridors (axes), and the entire megaregion will become more integrated economically, socially, and culturally. But, on the other hand, the HSR projects will also create serious social and geographic inequity issues, which need to be addressed as soon as possible in a proper way. This empirical study confirms the PANS model proposed. 展开更多
关键词 High Speed RAIL China YANGTZE River DELTA Megaregion IMPACTS
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Effects of Industrial Relocation on Chinese Regional Economic Growth Disparities: Based on System Dynamics Modeling 被引量:3
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作者 WU Aizhi LI Guoping +1 位作者 SUN Tieshan LIANG Yusheng 《Chinese Geographical Science》 SCIE CSCD 2014年第6期706-716,共11页
The economic growth of China has led to increasing growth disparities between regions. Such disparities are uncontrolled and are severely negative symptoms in the process of economic development. On the basis of syste... The economic growth of China has led to increasing growth disparities between regions. Such disparities are uncontrolled and are severely negative symptoms in the process of economic development. On the basis of system dynamics(SD) modeling and the relationship between industrial relocation and regional economic growth, we construct a model of the interrelationship between the two aforementioned phenomena. The model is an effective and creative exploration for examining effects of industrial relocation on Chinese regional economic growth disparities. The SD model is employed in this study to build an inter-regional labor migration SD model, an inter-regional capital migration SD model, an intra-industry SD model, an intra-regional population SD model, and an intra-regional SD model which are based on realities in labor and capital flow from the view of industrial relocation. VENSIM software is utilized to perform a system simulation based on the data of the eastern, middle, and western regions from 2000 to 2010. Results show that industrial relocation gradually narrows the relative disparity in GDP among the three regions. Moreover, the absolute one is enlarged continuously. The absolute and relative disparities in per capita GDP among eastern, middle, and western regions generally exhibit decreasing trends. 展开更多
关键词 industrial relocation economic growth disparity system dynamics (SD) modeling China
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Suburbanization and Subcentering of Population in Beijing Metropolitan Area:A Nonparametric Analysis 被引量:3
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作者 SUN Tieshan HAN Zhenhai +1 位作者 WANG Lanlan LI Guoping 《Chinese Geographical Science》 SCIE CSCD 2012年第4期472-482,共11页
This study focuses on the suburbanization and subcentering of population and examines the nature of spatial restructuring in terms of the population distribution in the Beijing metropolitan area.Instead of the classic... This study focuses on the suburbanization and subcentering of population and examines the nature of spatial restructuring in terms of the population distribution in the Beijing metropolitan area.Instead of the classic density function approach,we employ the nonparametric analysis to characterize the spatial pattern of population densities in the Beijing metropolitan area and identify the suburban subcenters.Our findings suggest that the population has spread with rapid urban growth in the Beijing metropolitan area,and the compact urban form has been replaced by a more dispersed polycentric spatial distribution.However,compared with the decentralization of western cities,the spatial extent of the decentralization of population in the Beijing metropolitan area is quite limited.The rapid growth of population in the near suburbs has expedited the sprawl of the central city,with a larger central agglomeration of population dominating the metropolitan area.In this sense,the spatial pattern of the Beijing metropolitan area is still characterized by the continuous compactness.However,our findings do provide the evidence that the city has been turning to a polycentric structure.We find significant population subcenters have emerged in the suburbs of Beijing since the 1980s.But the polycentricity emerged in the Beijing metropolitan area is very different by nature from that observed in Western cities.The subcenters emerged are adherent to the development scheme planned for the city,so it can be referred to as the so called 'planned polycentricity'. 展开更多
关键词 SUBURBANIZATION population subcenters POLYCENTRICITY urban spatial structure Beijing metropolitan area
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Measurement and Spatial Distribution of Urban Agglomeration Industrial Compactness in China 被引量:4
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作者 QI Weifeng FANG Chuanglin SONG Jitao 《Chinese Geographical Science》 SCIE CSCD 2008年第4期291-299,共9页
Urban agglomeration (UA) compactness means spatial concentration degree of physical entities, such as cities (towns), industries, resources, funds, traffic and technologies, whose concentration is formed according to ... Urban agglomeration (UA) compactness means spatial concentration degree of physical entities, such as cities (towns), industries, resources, funds, traffic and technologies, whose concentration is formed according to specified economic and technologic association in the process of UA formation and development. The UA industrial compactness means the concentration degree of industry and industry clusters with reference to the industrial, technologi- cal and economic relations among the cities in the UA in the process of rational industrial division and with the exten- sion of industrial chain. After analyzing the researches on compactness, this paper finds that the relevant measurement coefficient and methods reflecting industrial geographical concentration fail to link industries spatial concentration with urban spatial concentration. Taking 23 UAs as samples and classifying them by development degree, this paper probes into UA compactness and spatial distribution characteristics from the perspective of industry by adopting UA index systems of industry and measurement models. The research finds out: 1) there is obvious positive correlation between UA industrial compactness and UA development degree; 2) the spatial distribution difference of UA industrial compactness is relatively great; and 3) UA industrial compactness shows a gradually decreasing tendency from the eastern part, the middle part to the western part of China. From the research thoughts and approaches, this article suggests that studies on the UA integrated compactness measurement should be enhanced from a multidimensional perspective involving space, traffic, population density and so on. 展开更多
关键词 industrial compactness urban agglomeration(UA) China
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Efficacy and safety of repetitive transcranial magnetic stimulation for generalised anxiety disorder: A metaanalysis 被引量:7
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作者 Huiru Cui Lijuan Jiang +6 位作者 Yanyan Wei Wei Li Hui Li Junjuan Zhu Jiaoyan Pang Jijun Wang Chunbo Li 《General Psychiatry》 CSCD 2019年第5期237-248,共12页
Background Pharmacological and conventional nonpharmacological treatments are only moderately effective in treatingeneralised anxiety disorder(GAD).Recently,repetitive transcranial magnetic stimulation(rTMS)has attrac... Background Pharmacological and conventional nonpharmacological treatments are only moderately effective in treatingeneralised anxiety disorder(GAD).Recently,repetitive transcranial magnetic stimulation(rTMS)has attracted interest because of its potential therapeutic value.Aim To investigate the efficacy and safety of rTMS treatment for GAD.Methods Literature studies published in English or Chinese were screened in 10 electronic databases up to 5 December 2018.The included studies'bias risk was assessed using Cochrane risk of bias assessment tool.Meta-analysis was performed to compute the standardised mean difference(SMD)and risk ratio(RR)along with its 95%Cis through using RevMan V.5.3.Heterogeneity was inspected by I2 and the χ2 test.We performed subgroup analysis and meta-regression to investigate heterogeneity.We used funnel plot to assess publication bias.We used the GRADE approach to assess the whole quality of evidence.Results Twenty-one studies,with a total sample size of 1481,were analysed.The risk of bias in most studies included is moderate,the majority of which are lacking of blinding methods of treatment allocation.The treatment had beneficial effects in the rTMS group compared with the control group in mean anxiety score(SMD=-0.68;95%Cl-0.89 to-0.46).None of the 21 studies included here reported severe adverse events.As for dropout rates,there are no statistically significant differences between the two groups(RR 1.14,95%Cl 0.72 to 1.82)or adverse events(RR 0.95,95%Cl 0.77 to 1.18).No particular influence on the heterogeneity of any variable was observed.The risk of publication bias was low.According to the GRADE approach,the evidence levels of primary outcome(treatment effects)and secondary outcomes(acceptability and safety)were rated as‘medium’.Conclusion The use of rTMS combined with medication treatment may have a significant positive anti-anxiety effect on patients with GAD.However,we should interpret the results cautiously due to the relatively high heterogeneity of the meta-analysis.Future high-quality clinical trials are needed to confirm our results. 展开更多
关键词 STIMULATION TREATMENT MAGNETIC
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