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1.
《地理学报(英文版)》2019,(8)
In this study, we developed an energy security evaluation model(ESEM) from three dimensions, energy supply-transport security, safety of energy utilization, and stability of political-socioeconomic environment, based on the integrated application of subjective and objective weight allocation technique. Then the spatial-temporal evolution of global energy security pattern and its driving mechanism was analyzed with the method above, and the results are shown as follows:(1) since the 1990 s, the spatial patterns of global energy security have shown a deteriorating trend, with the growth of countries in at-risk type and relatively at-risk type.(2) The spatial distribution of countries with secure energy system shows a strong stability, and these countries are concentrated persistently in Western Europe and North America. The spatial evolution of countries with relatively secure energy system also presents a strong stability, which are mainly distributed in the periphery of the secure ones, namely Central and Southern Europe, South America and Eurasia, while countries with general energy system are mainly distributed in Asia, Africa and Southern Europe, and the spatial-temporal evolution of this type is the main cause for the deterioration of world energy security pattern. Countries with at-risk and relatively at-risk energy system are mainly concentrated in Africa, Asia, the Middle East and Eurasia, rendering spatial extension to the east and south.(3) In the past 20 years, the mechanism for world's energy security pattern formation gradually transforms from the ‘unitary dimension dominated' to the ‘binary dimension-dominated', and the main factors influencing the global energy security pattern become more diverse.(4) In the pattern of world's energy security, China's performance on energy security has been the global average since the 1990 s, which shows a decreasing trend in safety of energy utilization dimension. Findings in this study can provide a reference for the government in terms of formulating strategic responses and policy options. 相似文献
2.
基于空间模型的全球粮食安全评价 总被引：3，自引：1，他引：2
This paper presents a scenario-based assessment of global future food security. To do that,the socio-economic and climate change scenarios were defined for the future and were linked to an integrated modeling framework. The crop yields simulated by the GIS-based Environmental Policy Integrated Climate (EPIC) model and crop areas simulated by the crop choice decision model were combined to calculate the total food production and per capita food availability,which was used to represent the status of food availability and stability. The per capita Gross Domestic Product (GDP) simulated by IFPSIM model was used to reflect the situation of food accessibility and affordability. Based on these two indicators,the future food security status was assessed at a global scale over a period of approximately 20 years,starting from the year 2000. The results show that certain regions such as South Asia and most African countries will likely remain hotspots of food insecurity in the future as both the per capita food availability and the capacity of being able to import food will decrease between 2000 and 2020. Low food production associated with poverty is the determining factor to starvation in these regions,and more efforts are needed to combat hunger in terms of future actions. Other regions such as China,most Eastern European countries and most South American countries where there is an increase in per capita food availability or an increase in the capacity to import food between 2000 and 2020 might be able to improve their food security situation. 相似文献
3.
There is less than a decade left to accomplish the goal of ending global poverty by 2030. This paper investigates global poverty dynamics and finds a shift in the world's poverty gravity center from South Asia to Africa in the period 1990–2015. Sub-Saharan Africa has become the main battlefield for poverty reduction in the world. Global poverty reduction has been accompanied by political instability and local conflicts, economic marginalization, rural decline, and natural hazards as well as climate change which are jointly impacting the least developed areas and making the world's poverty reduction vulnerable to external shocks. The "STAR" scheme, including maintaining political stability, promoting targeted poverty alleviation, implementing regular assessments of poverty reduction initiatives, and revitalizing rural and poverty-stricken areas, is proposed with specific measures to enhance the resilience capacity of poverty alleviation in the world. 相似文献
4.
《地理学报(英文版)》2018,(7)
This paper uses data for the period 1950–2050 compiled by the United Nations Population Division together with methods including spatial autocorrelation analysis, hierarchical cluster analysis and the standard deviational ellipse, to analyze the spatio-temporal evolution of population and urbanization in the 75 countries located along the routes of the Silk Road Economic Belt and the 21 st-century Maritime Silk Road, to identify future population growth and urbanization hotspots. The results reveal the following: First, in 2015, the majority of Belt and Road countries in Europe, South Asia and Southeast Asia had high population densities, whereas most countries in Central Asia, North Africa and West Asia, as well as Russia and Mongolia, had low population densities; the majority of countries in South Asia, Southeast Asia, Central Asia, West Asia and North Africa had rapid population growth, whereas many countries in Europe had negative population growth; and five Belt and Road countries are in the initial stage of urbanization, 44 countries are in the acceleration stage of urbanization, and 26 are in the terminal stage of urbanization. Second, in the century from 1950 to 2050, the mean center of the study area's population is consistently located in the border region between India and China. Prior to 2000, the trajectory of the mean center was from northwest to southeast, but from 2000 it is on a southward trajectory, as the population of the study area becomes more concentrated. Future population growth hotspots are predicted to be in South Asia, West Asia and Southeast Asia, and hotspot countries for the period 2015–2030 include India, China, Pakistan and Indonesia, though China will move into negative population growth after 2030. Third, the overall urban population of Belt and Road countries increased from 22% in 1950 to 49% in 2015, and it is expected to gradually catch up with the world average, reaching 64% in 2050. The different levels of urbanization in different countries display significant spatial dependency, and in the hundred-year period under con-sideration, this dependency increases before eventually weakening. Fourth, between 2015 and 2030, urban population hotspots will include Thailand, China, Laos and Albania, while Kuwait, Cyprus, Qatar and Estonia will be urban "coldspots." Fifth, there were 293 cities with populations over 1 million located along the Belt and Road in 2015, but that number is expected to increase to 377 by 2030. Of those, 43 will be in China, with many of the others located in India, Indonesia and the eastern Mediterranean. 相似文献
5.
Population,urbanization and economic scenarios over the Belt and Road region under the Shared Socioeconomic Pathways 总被引：1，自引：0，他引：1
Jing Cheng Tao Hui Jiang Tong Wang Yanjun Zhai Jianqing Cao Lige Su Buda 《地理学报(英文版)》2020,30(1):68-84
The countries throughout the Belt and Road region account for more than 60% of the world's population and half of the global economy. Future changes in this area will have significant influences on the global economic growth, industrial structure and resource allocation. In this study, the proportion of the urban population to the total population and the gross domestic product were used to represent the levels of urbanization and economic development, respectively. The population, urbanization and economic levels of the Belt and Road countries for 2020–2050 were projected under the framework of the IPCC's shared socioeconomic pathways(SSPs), and the following conclusions are drawn.(1) The population, urbanization and economic levels in the Belt and Road region will likely increase under all five pathways. The population will increase by 2%–8%/10 a during 2020–2050 and reach 5.0–6.0 billion in 2050. Meanwhile, the urbanization rate will increase by 1.4%–7.5%/10 a and reach 49%–75%. The GDP will increase by 17%–34%/10 a and reach 134–243 trillion USD.(2) Large differences will appear under different scenarios. The SSP1 and SSP5 pathways demonstrate relatively high urbanization and economic levels, but the population size is comparatively smaller; SSP3 shows the opposite trend. Meanwhile, the economy develops slowly under SSP4, but it has a relatively high urbanization level, while SSP2 exhibits an intermediate trend.(3) In 2050, the population will increase relative to 2016 in most countries, and population size in the fastest growing country in Central Asia and the Middle East countries will be more than double. Urbanization will develop rapidly in South Asia, West Asia and Central Asia, and will increase by more than 150% in the fastest growing countries. The economy will grow fastest in South Asia, Southeast Asia and West Asia, and increase by more than 10 times in some counties with rapid economic development. 相似文献
6.
The coupled characteristics of the physical process between sea ice of two poles and Tibetan land surface 
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下载免费PDF全文 In order to discuss the characteristics of sea ice change of strong signal area on Antarctic and Arctic and the correlation between the thermal state on the land surface of Tibetan Plateau and the atmosphere circulation of North Hemisphere or the climate changes in China, and to study the feedback mechanism among “three-pole” factors, the earlier stage “three-pole” strong signal characteristics by using statistic methods such as teleconnection,which affect the regional climate changes in China and East Asia. The cross-correlation feature and coupling effect between ice caps of North and South pole and water-thermal state on Tibetan Plateau surface are discussed as well. The contribution of three-pole's earlier stage factors to China's summer climate change and the influence of its dynamic structure are compared here. The formation mechanisms of global climate change and regional climate change of China are investigated from the aspect of qualitative correlation mode of global sea-land-air-ice. 相似文献
7.
SHEN Beibei SONG Shuaifeng ZHANG Lijuan WANG Ziqing REN Chong LI Yongsheng 《地理学报(英文版)》2022,32(1):79-100
The study of temperature change in major countries of the world since the 1980 s is a key scientific issue given that such data give insights into the spatial differences of global temperature change and can assist in combating climate change. Based on the reanalysis of seven widely accepted datasets, which include trends in climate change and spatial interpolation of the land air temperature data, the changes in the temperature of major countries from 1981 to 2019 and the spatial-temporal characteristics of global temperature change have been assessed. The results revealed that the global land air temperature from the 1980 s to 2019 varied at a rate of 0.320℃/10 a, and exhibited a significantly increasing trend, with a cumulative increase of 0.835℃. The mean annual land air temperature in the northern and southern hemispheres varied at rates of 0.362℃/10 a and 0.147℃/10 a, respectively, displaying significantly increasing trends with cumulative increases of 0.828℃ and 0.874℃, respectively. Across the globe, the rates of change of the mean annual temperature were higher at high latitudes than at middle and low latitudes, with the highest rates of change occurring in regions at latitudes of 80°–90°N, followed by regions from 70°–80°N, then from 60°–70°N. The global land surface air temperature displayed an increasing trend, with more than 80% of the land surface showing a significant increase. Greenland, Ukraine, and Russia had the highest rates of increase in the mean annual temperature;in particular, Greenland experienced a rate of 0.654℃/10 a. The regions with the lowest rates of increase of mean annual temperature were mainly in New Zealand and the equatorial regions of South America, Southeast Asia, and Southern Africa, where the rates were <0.15℃/10 a. Overall, 136 countries(93%), out of the 146 countries surveyed, exhibited a significant warming, while 10 countries(6.849%) exhibited no significant change in temperature, of which 3 exhibited a downward trend. Since the 1980 s, there have been 4, 34 and 68 countries with levels of global warming above 2.0℃, 1.5℃ and 1.0℃, respectively, accounting statistically for 2.740%, 23.288% and 46.575% of the countries examined. This paper takes the view that there was no global warming hiatus over the period 1998–2019. 相似文献
8.
The Arab region covers an area over 13 million square kilometers in size, with almost 90% of its area classified as arid or extremely arid with very little precipitation, extremely high evaporation and almost no vegetation cover. The region is classified in many international reports as the poorest region in the world in the context of renewable water resources and critical water scarcity which hinders the socio-economic development of many countries in this region. The rapidly increasing population has reduced the per capita share of renewable water to less than the poverty line of 1,000 m 3 /(capita·a) and, in some Arab countries, to less than the extreme poverty line of 500 m 3 /(capita·a). This has led to over-exploitation of non-renewable groundwater and desalination of salty water in many countries with considerable costs and contamination of many renewable sources. Atmospheric processes responsible for aridity in the Arab region are projected to intensify due to climate change, resulting in an alarming decrease in precipitation and increase in evaporation rates. Many concerned entities in the region consider water security as a key element for food security and ultimately political stability. Hence, various efforts have been exerted to identify key problems and suggested solutions. The Arab Water Ministers Council of the Arab League, as well as Reports of the Arab Forum for the Environment and Development (AFED) and the recommendations of the 13th Regional Meeting of the Arab National Committees of the International Hydrological Programme of UNESCO (IHP), have all made similar recommendations on the need to address the issues of water scarcity in the Arab region which will be further discussed in this paper. However, none of these reports focused on "Water Conservation" as an equally important action for coping with water scarcity in the region. There are many definitions for "Water Conservation" in the scientific literature, including huge water savings from irrigation, industrial use, and domestic use as well as methods and approaches for augmenting water supply through non-conventional practices such as water harvesting and waste water reuse. In this paper, a review is provided for definitions, methods and impacts of water conservation and its role in alleviating water scarcity in the Arab region. 相似文献
9.
As a kind of large-scale connectivity infrastructure, submarine cables play a vital role in international telecommunication, socio-economic development and national defense security. However, the current understanding about the spatial pattern of global submarine cable network is relatively limited. In this article, we analyze the spatial distribution and connectivity pattern of global submarine cables, and identify their strategic pivots and strategic channels. The main conclusions are as follo... 相似文献
10.
温室气体排放评价指标及其定量分析 总被引：2，自引：0，他引：2
Anthropogenic greenhouse gases （GHG） emission and related global warming issues have been the focus of international communities for some time. The international communities have reached a consensus to reduce anthropogenic GHG emissions and restrain global warming. The quantitative assessment of anthropogenic GHG emissions is the scientific basis to find out the status of global GHG emission, identify the commitments of each country, and arrange the international efforts of GHG emission reduction. Currently the main assessment indicators for GHG emission include national indicator, per capita indicator, per GDP indicator, and international trade indicator etc. The introduction to the above indi- cators is put forward and their merits and demerits are analyzed. Based on the GHG emission data from the World Resource Institute （WRI）, the US Energy Information Administration （EIA）, and the Carbon Dioxide Information Analysis Center （CDIAC）, the results of each indictor are calculated for the world, for the eight G8 industrialized countries （USA, UK, Canada, Japan, Germany, France, Italy and Russia）, and the five major developing countries including China, Brazil, India, South Africa and Mexico. The paper points out that all these indicators have some limitations. The Indicator of Industrialized Accumulative Emission per Capita （IAEC） is put forward as the equitable indicator to evaluate the industrialized historical accumulative emission per capita of every country. IAEC indicator can reflect the economic achievement of GHG emission enjoyed by the current generations in every country and their commitments. The analysis of IAEC indicates that the historical accumulative emission per capita in indus- trialized countries such as UK and USA were typically higher than those of the world average and the developing countries. Emission indicator per capita per GDP, consumptive emission indicator and survival emission indicator are also put forward and discussed in the paper. 相似文献
11.
2000—2014年全球粮食安全格局的时空演化及影响因素 总被引：1，自引：0，他引：1
粮食安全是实现可持续发展整体目标的基础,由于“至2015年使饥饿人口比例减半”的千年发展目标并未如期实现,使得2030年零饥饿目标的实现面临更大挑战。鉴于此,亟需从全球粮食安全格局的时空演化中寻找全球粮食安全问题的内在原因。在建立粮食安全评价因子数据集和粮食安全影响因素数据集的基础上,运用多指标综合评价法评价2000—2014年172个国家的粮食安全水平;进而通过空间自相关分析研究全球粮食安全格局的空间模式与变化特征;在此基础上运用多元非线性回归方法分析粮食安全格局的影响因素。结果表明：① 全球粮食安全格局呈现出社会经济发展与粮食安全水平“高—高集聚、低—低集聚”的空间模式,其中高值区主要分布在除东欧以外的欧洲区域、北美洲、大洋洲和东亚部分国家,低值区主要集中在撒哈拉以南非洲、南亚和西亚地区、以及东南亚部分国家;② 在99%的置信水平上,欧洲和撒哈拉以南非洲分别是全球粮食安全格局的热点和冷点,在非集聚区,海地和朝鲜等国存在长期粮食不安全问题;③ 全球粮食安全格局总体稳定,但极不安全和不安全组的内部变化明显,粮食安全水平波动最大的国家也是粮食最不安全的国家;④ 年平均气温、人均国内生产总值、获得洁净用水的人口占比、政治稳定与无暴力程度是全球粮食安全格局的主要影响因素。研究表明,自2000年以来,全球粮食安全状况有所改善,但2013年出现趋势性逆转。受气候变化、居民购买力、健康卫生水平和政治经济稳定性影响,全球粮食安全始终波动不稳,局部区域目前仍面临突出的粮食安全问题。为此,建议制定基于粮食供给、食物获取、食物利用和政治稳定性四大支柱的粮食安全战略,并通过全球乡村振兴策略来推动粮食安全建设,同时逐步引入城市农业等多元化生产方式,使高度城市化区域建立起更富弹性的食物系统。 相似文献
12.
本文利用全球新型冠状病毒疫苗（COVID-19疫苗,简称新冠疫苗）的开发、订购、捐赠和接种数据,借助GIS等技术方法,在明晰全球新冠疫苗开发与流通格局的基础上,探讨全球新冠疫苗接种的时空分异特征。结果表明：① 全球新冠疫苗开发格局呈明显的空间不均衡性,形成以西欧、北美和亚洲为核心的三足鼎立格局,美国、中国和英国等是新冠疫苗的主要开发国。② 全球新冠疫苗订购网络主要遵循定向扩展和不定向扩展两种扩展模式,订购联系总体上表现出早期集中于欧美发达国家内部,随后逐步向外部亚非拉国家扩展的特点。③ 全球新冠疫苗捐赠网络以中国和美国为双核,美国主要向东南亚、南亚和拉美等美国传统势力范围或战略地位重要国家进行捐赠,中国主要向南亚、东南亚和西亚等“一带一路”沿线国家和非洲国家进行捐赠。整体上新冠疫苗捐赠主要受捐赠双方联系密切程度、关系友好程度和捐赠国的国家战略需求及国际义务履行需要等因素综合影响,但不同捐赠国侧重点有所不同。④ 受全球新冠疫苗的开发、订购和捐赠格局影响,欧美发达国家的新冠疫苗接种进程领先于绝大多数亚非拉国家,但差异性正逐步缩小,中国的疫苗接种由相对较高水平区跃升至相对高水平区,成为发展中国家的代表。 相似文献
13.
世界能源贸易网络的演化特征与能源竞合关系 总被引：3，自引：1，他引：3
详尽地探讨全球能源贸易网络的演化特征及国际贸易的竞合关系,可为中国能源贸易政策的制定提供科学支撑。论文运用复杂网络方法,从整体格局出发研究了世界能源贸易网络的演化特征,并重点从供给与需求两方面分析了贸易集团演化与供需大国的能源竞合关系。研究结果表明：20世纪90年代以来,世界能源贸易关系不断趋于复杂化。近年来,能源贸易主体数量基本保持稳定,当前占世界总数近80%的国家/地区均参与能源贸易;世界能源贸易网络同时具有小世界特性与无标度特性;世界能源的进出口格局已发生重塑,能源的出口重心逐渐由东亚、中东、澳洲和欧洲转向了东欧、中东、北美、澳洲和西非等地区,进口重心由东亚、西欧和澳洲向北美、东亚和西欧转移;世界能源贸易网络存在四大集团,分别是以美国为首的贸易集团、欧洲-俄罗斯等国家贸易集团、东亚-东南亚贸易集团和澳大利亚-印度-非洲贸易集团等。地理距离、制度差异、历史文化及政治关系等是贸易集团演化的重要原因;贸易集团内,核心国家间的贸易依赖存在着非对称性,能源需求国进口来源的多元化现象更为突出,东亚、东南亚市场是供给国共同争夺的对象。 相似文献
14.
Further utilization of global agricultural resources and the expansion of potential international cooperation space are necessary measures to promote a new level of China’s national food security and optimize the structure of domestic food consumption. This study measured the global potential cultivated land area and national grain self-sufficiency. Based on the two-above measures, the authors made a classification of China’s foreign agricultural cooperation countries and depicted the spatial pattern of cooperation based on the grain trades of those countries with China. The grain exporters include Australia, North America, South America, Eastern Europe and Central Asia; and the target countries for “going abroad” of Chinese grain enterprises are mainly located in Sub-Saharan Africa and northern Latin America. This study proposes that China’s policy of cooperation on grain should be shifted to non-traditional partners alongside the “Belt and Road Initiative” region. Specifically, China could expand grain imports from Russia, Kazakhstan, Ukraine and other East European and Central Asian countries, and the direction for China’s agricultural enterprises “going abroad” should shift to Sub-Sahara Africa. 相似文献
15.
世界跨国投资网络结构演化及复杂性研究 总被引：13，自引：5，他引：8
基于复杂网络方法,运用GIS、Pajek、Matlab和数据库等技术手段,构建世界跨国投资网络,考察2001~2012年世界跨国投资网络结构及其复杂性的时序演化过程。根据研究可以得出以下主要结论：① 世界跨国投资网络整体遵循“核心-边缘”的圈层结构,结构内部不断变化和重组,呈现由双核主导向多核互联演变,形成资本从西欧、北美、东亚向北欧、南美、西亚、东南亚流动的格局;② 世界投资网络具有显著小世界性质和无标度特征,无标度特征伴随时间的推移趋于弱化;③ 投资活动活跃的国家,对跨国投资网络拥有更强的控制力,但对强化投资的可达性作用不显著,其主要受市场等潜在因素的影响;④ 跨国投资结构的复杂性由高到低依次为中枢型投资地、区域型投资地、一般型投资地、孤立型投资地,不同功能类型的空间分布具有显著的集聚性。 相似文献
16.
地缘位势视角下中美俄与伊朗的地缘关系解析 总被引：1，自引：0，他引：1
在厘清空间视角下权力作用机制的基础上,构建地缘位势模型,刻画“9·11”事件后中美俄在伊朗的地缘位势演化特征,结合国别研究尝试解读中美俄与伊朗的地缘关系,主要得出以下结论：1）美国在伊朗的地缘位势在负向高位区间频繁波动,俄罗斯的位势在正向中位区间小幅波动,美国和俄罗斯的波动呈现“强－强”机制,中国的位势变化则与其较为剥离,呈“S”型曲线大幅增长。2）中美俄在伊朗的地缘位势是地理位置、地缘外交、地缘经济和地缘文化各要素共同作用的结果,其中地理位置是基底要素,地缘外交是决定要素,地缘经济是驱动要素,地缘文化是协作要素。3）中伊的地缘战略空间互补性重叠,中国综合国力的增强和双边经贸依赖的加深提升着地缘关系的强度和密度;美伊的地缘关系偶有缓和但总体较差,呈现出的波动性是国内政治生态和国际政治环境下的双重应答;俄伊地缘关系紧密缘于传统地理空间邻近和地缘战略考量,两国间存在着由经济利益、政治选择、安全保障等各种因素构成的稳定却复杂的地缘关系网络。 相似文献
17.
WU Wenbin TANG Huajun YANG Peng YOU Liangzhi ZHOU Qingbo CHEN Zhongxin SHIBASAKI Ryosuke 《地理学报》2011,21(1):3-17
This paper presents a scenario-based assessment of global future food security. To do that, the socio-economic and climate change scenarios were defined for the future and were linked to an integrated modeling framework. The crop yields simulated by the GIS-based Environmental Policy Integrated Climate (EPIC) model and crop areas simulated by the crop choice decision model were combined to calculate the total food production and per capita food availability, which was used to represent the status of food availability and stability. The per capita Gross Domestic Product (GDP) simulated by IFPSIM model was used to reflect the situation of food accessibility and affordability. Based on these two indicators, the future food security status was assessed at a global scale over a period of approximately 20 years, starting from the year 2000. The results show that certain regions such as South Asia and most African countries will likely remain hotspots of food insecurity in the future as both the per capita food availability and the capacity of being able to import food will decrease between 2000 and 2020. Low food production associated with poverty is the determining factor to starvation in these regions, and more efforts are needed to combat hunger in terms of future actions. Other regions such as China, most Eastern European countries and most South American countries where there is an increase in per capita food availability or an increase in the capacity to import food between 2000 and 2020 might be able to improve their food security situation. 相似文献
18.
论文基于全球238个国家和地区的面板数据,研究1988—2018年全球粮食贸易网络的空间格局演变,并引入零膨胀负二项回归构建粮食贸易的引力模型以解析其影响因素,以期揭示全球粮食贸易的驱动因素。结果表明：① 全球粮食贸易规模在波动中呈快速上升态势,贸易增速年际波动较大;贸易商品结构不断多元化,但仍以小麦、玉米和大麦为主。② 全球粮食贸易网络密度不断增强,局部核心节点存在极化现象,但整体贸易网络多元化趋势不断增强。在国家尺度,粮食贸易网络结构由“东西轴线”转向“多点放射”,逐渐从极化转向多元;其中,粮食出口网络核心节点不断增加,但区域粮食出口网络仍受几个核心国家主导;进口网络的集中特征逐渐弱化且更加均衡。③ 土地资源禀赋、农业产业结构、对外开放程度是各个国家和地区参与全球粮食贸易的核心驱动因素,价格差异水平、语言邻近性、空间物理距离、社会治理水平对各个国家和地区参与全球粮食贸易有一定影响,其他因素的影响作用较小。该研究能丰富贸易地理相关研究,提升对全球粮食贸易的科学认知,并为保障中国粮食安全提供支撑。 相似文献
19.
中国经济权力空间格局演化研究——基于国家间相互依存的敏感性与脆弱性分析 总被引：9，自引：4，他引：5
在全球化时代,地缘政治逻辑发生了变化,不对称相互依存替代军事实力成为国家权力的重要来源,在此背景下和平崛起的中国正在以经济实力改写世界政治版图。本文基于国家间相互依存理论,利用双边贸易数据分析中国与世界各国经济相互依存的非对称性,以此构建中国经济权力评价模型,研究中国崛起过程中经济权力的空间演变格局。主要结论为：① 中国对外贸易的地理分布明显呈现由过度集中于东亚、西欧和北美的三极格局向更加均衡格局转变,但全球对华贸易依存度最高的国家依然集中在低纬度的亚非拉地区;② 世界各国对中国的贸易高敏感区呈现出由亚太向非洲、拉美地区推进的趋势,而高脆弱区域则呈现出由点状散布向连片生长转变的趋势;③ 中国经济权力空间已由周边扩展至全球,并向发达世界渗透,而同时期美国经济权力空间却呈现收缩趋势。 相似文献