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  • 2007 Volume 27 Issue 5
    Published: 20 September 2007
      

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  • LIU Wei-Dong, ZHANG Guo-Qin, SONG Zhou-Ying
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    Economic globalization has been one of the major considerations in making development strategies for both national and local governments and firms.Essentially,globalization is a set of on-going processes that are interconnected and operated unevenly across space and time.One of the signifiers of globalization is the emerging global production network,which distinguishes the current state of the world economy from its past configurations.Since the spread of production network is territorially embedded,the spatial implications of globalization lie with the interaction between the "global" and "local/place".Many writers have argued that,as a result of globalization and the rapid development of new information and communication technology,the world economy is being restructured towards a system of "flows",connections and networks,which makes "gateway" cities much more significant than ever in attracting those "flows" and channeling them with their hinterlands.Such dynamics have been redrawing the map of the world economy into one of archipelagos—a few of extended metropolitan regions(EMR) with gateway cities as cores across the globe.Since the early 1980s,China has been actively and extensively involved in the process of globalization through attracting huge amount of foreign direct investments(FDI) and growing into a big exporter of manufactured goods.Inflow of FDI and growth of foreign trade,which have taken place mostly in the coastal region,have strengthen the coastal "axle" of the "T-shaped" spatial structure of national economic development in China.This paper,based on an introduction to theoretical arguments on globalization and its spatial implications,first analyzes the trend of FDI inflow into China as well as potential growth of China’s foreign trade in the next two decades or so.It argues that China will keep its attractions to FDI because of the combined advantages of low production cost and sheer market scale there,and will continue to act as a "world factory" in the years to come.Since vertical FDI generally favorites coastal locations for convenience of exports whereas horizontal FDI also tends to go to favorable transport nodes,either coastal or inland,FDI inflow will further consolidate the "T-shaped" spatial structure of national economic development in China,with the coastal regions as one axle and those along the Changjiang(Yangtze) River as the other.In addition,as revealed by theoretical arguments,FDI will "flow" via a number of gateway cities into hinterlands.Thus,FDI inflow may lead to the emergence of several EMRs in China,which tend to be located mainly on the "T-shaped" spatial structure.Therefore,a scenario of the spatial structure of economic development in China in the next two decades is likely to be that economic activities agglomerate into a number of EMRs on the "T-shaped" spatial structure(along the coastal and the Changjiang River).This trend should be one of the major considerations in making future regional development policies in China.
  • MIAO Chang-Hong
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    Economic geography has close relationship with economics and there are three frontier approaches in contemporary economic geography which are founded on three approaches of economics: neoclassical,institutional and evolutionary economics.Based on neoclassical economics,’new economic geography’ or’geographical economics’ is bringing the’geographical turn’ back into economics and has attracting many scholars’ attention,both in modern mainstream economics and in geographical sciences.Meanwhile,with the perspectives of institutional economics and other social sciences,the "institutional turn" and "cultural turn" have transformed mainstream economic geography into a more interdisciplinary approach.Recently,the rise of evolutionary economics in mainstream economics is bringing a new approach named as "evolutionary economic geography" to geographical sciences.Although mainstream economics and geography have largely developed separately,those three approaches of’new economic geographies’ will bring a new stage to the innovation and development of contemporary economic geography from the "Quantitative and theoretical revolution" and the "Marxism turn" onwards.This paper introduces the fundamental principals of neoclassical,institutional and evolutionary approaches in economics and explores their effects on the directions of development of contemporary economic geography.We should think much of the great differences between neoclassical,institutional and evolutionary economic geographies,but they also have many commonalities and great complementarities to explain various formal and substantive spaces,so the competition and cooperation between them should be the important direction of developing contemporary economic geographies.
  • JIAO Lian-Cheng, CHEN Cai
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    This paper analyzes such six problems in the development of economic geography in China as philosophy,branches,theory,methodology,researching orientation and higher education.In addition,this paper sums up philosophy,branches of economic geography,theoretical system,methodology and researching region in economic geography in China and forecasts their respective development from the aspect of constructing economic geography in China.
  • WANG Guo-Xia, LU Qi
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    The scale of migration of rural population has been a big increase since the reform of China,and the spatial migration distribution has a great change as well.By use of software of ARCGIS and based on the data of the forth and fifth censuses,the paper studies the spatial and temporal change of rural population migration and summarizes the characteristics of migration of rural population in the last 20 years.Firstly,the authors analyse the share changes of the rural population migration to the whole country population migration in the 1980s and 1990s,and divides 31 provinces into four classes according to the average of share of rural population migration to whole population migration further and briefly explores the reasons of change with the time for every province.Then they explore the spatial and temporal changes of rural population migration from the inter-provincial and inner-provincial scales.The scale and flow direction of in-migration and out-migration of rural population are explored in this paper.At last,the authors make a comparison research of activity degree of rural population migration among provinces by use of migration rate.The conclusion are as follows: ① From the viewpoint of whole China,the scale of migration of rural population is increasing,but the percentage to total migration is decreasing for the urban population migration.② Although the rural population take the great parts in whole in China,but it varies in different provinces.The urban population migration plays an important role in some developed provinces.It is found that the rural population both of Middle China and West China are more active in 1990s than in the 1980s not only for inter-provincial migration but also for inner-provincial migration.③ The distance of migration is longer and the direction of migration is clearer in the 1990s than in the 1980s.The rural migrants mainly rushed to the regions of Guangdong,Shanghai,Jiangsu and Zhejiang and mainly came from Anhui,Hunan,Jiangxi,Henan and Sichuan.④ Although it appears that the Middle China and East China are the same level as far as the total scale of migration,the migration structures are different.The migration of East China mainly take place in inner province,while that of Middle China mainly do inter provinces.⑤ Both inner-provincial and inter-provincial migration rate have rises from the 1980s to the 1990s and the rise range is different in provinces for location,history,economy and so on.The province with maximum rural migration is not the province with highest migration rate because of the different rural population base.
  • LI Xun, DING Xin-Zheng
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    Based on the fact that the distribution of FDI has been aggregated to the cities of the Zhujiang(Pearl) River Delta in Guangdong Province since the implementation of the policy of reform and opening-up,this article makes an analysis on the location selection of FDI in the Zhujiang River Delta by introducing the partial adjustment model.The result of the analysis indicates the location selection of FDI in the Zhujiang River Delta not only regards to the low cost of labor,the basic infrastructure,and etc.,but also has a direct relationship with the FDI stock which is regarded as the spatial accumulation effect.At last,we propose the suggestion that the Zhujiang River Delta should put stress on the cultivation and development of FDI cluster in order to boost an investment accumulation effect.
  • CHEN Yue-Ying
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    This paper takes prefectural area as a unit,and studies characteristic of regional economic differentiation of the littoral belt of China with index synthesis in 1984-2003.The characteristic takes on the peak of the level of economic development alternating with the valley of the level.First it makes a detailed study of the growth process of regional economic differentiation.Then it researches the evolution features of regional industrial structure and the level of regional urbanization.At last it discusses the space-time relationship of the regional economic differentiation of the littoral belt according to the above.The conclusion of the study indicates that the littoral belt has various regional economic differentiations between regions,regional combinations,the northern part of the belt and the southern China.
  • ZHANGU Ke-Yuan, OU Xiang-Jun, SHEN Zheng-Ping
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    This paper analyses the current situation and the development characteristics of the main economic belts and spatial structure in Jiangsu Province on the basis of foreign achievement of the economic belt,at the same time,makes a comprehensive evaluation on ability of industry structure adjustment of four economic belt using the analytical method of main composition.Then it makes a comparative analysis of space interactive strengths of four economic belts using gravity model.It was found that there is evident regional disparity in changing ability of industry structure and space interactive strengths in four economic belts.At last,main countermeasures of the interactive development of four economic belts and space were proposed.
  • YANG Lin, HE Fang
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    Urban-rural fringe lies in transitional region between urban and rural.Its land-use shows the rapid and unsteady characters in different space and time.This paper regards urban-rural fringe as a flexible and dissipative structure,analyzes its flexible management of land-use based on the dissipative structure principle and its entropy model,sets up a subjection function to confirm a urban-rural fringe belt and uses an example to validate the model.At last,this paper puts forward suggestions for the urban-rural fringe belt to change its value of entropy and achieve the strategic keystone of it.
  • WANG Hong, TANG Jie, WANG Jun
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    Corn advanced processing has the typical characters of alternative energy and circular economy.With the transform of agricultural structure from adaptable adjustment to strategic adjustment,advanced processing industry of corn that connects agriculture and industry has displayed great marketable potential and vast development space.A lot of successful experiences all over the world have proved that advanced processing industry of corn is "golden industry" that has related effect,collected effect and increased effect.But currently advanced processing industry of corn is restricted by both resources scarcity and environmental pollution.In terms of promoting the coordinated development of economy and environment,as a circular economy model of corn advanced processing industry,to build EIP of corn advanced processing industry is probed into in this paper,in combination with the development actualities and environmental pollution control status in this industry.The analysis results indicate that effective saving of resources and energy and comprehensive utilization of by-production and waste can be gained by designing closed-circuit eco-industrial chains of corn advanced processing industry by means of practicing cleaner production and extending of industrial chain.The study of circular economy model of corn advanced processing industry can promote the sustainable development of corn advanced processing industry while increasing green competition ability of enterprises engaged in corn advanced processing which makes environmental,economic and social benefits.Jilin Province is a hometown of corn in China.And fortunately it is one of the "three golden belts of corn" in the world.Advanced processing industry of corn is one of the pillar industries of Jilin Province,so this study makes great sense to the sustainable development of corn advanced processing industry in Jilin Province and it can be use for reference to the same industry in other region.
  • PENG Yong-Lin, SHENG Lian-Xi
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    It is a primary problem that how to reinforce the eco-environment construction and improve the eco-environment quality in the course of promoting sustainable development for all countries in the world.And that is an important task to carry out the scientific development and build Harmonious Society.Some effects have been gained in the eco-environment construction in Jilin Province.But there are still some questions: 1) land retirement is very serious;2) resources utilization efficiency is low;3) the quality and function of forests,pastures and wetlands are declining;and 4) environmental pollution is aggravating.The authors analyse the restricted factors that lead to deterioration of eco-environment in Jilin Province.Those factors are the environment investment capability,industrial structure,technological innovation capability,management system and environmental bearing capacity.At last,the authors put forward some suggestions to promote eco-environment construction form the perspective of government behavior.
  • XU Liu-Bing, ZHOU Shang-Zhe
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    The formation of fluvial terraces results from the combination of internal factor(change in intrinsic fluvial system dynamics) and external factors(high-and low-frequency climate change,tectonic uplift,and base level change).Models of climate-controlled fluvial terrace formation can explain the tendencies towards riverbed aggradation and degradation resulting from changes in sediment and water supply.However,these models can not explain the progressive(intermittent) incision recorded by several terrace staircases.The formation of river terrace staircases might be the result of combination of climate changes and tectonic uplift.When the resisting power resulting from increment of sediment supply and decrement of river discharge exceeded the stream power resulting from increment of river gradient due to tectonic uplift,river aggradation occursed during glacial periods.However,river channels behaviored in a contrary way during glacial-interglacial periods,when river incision occurred and the effect of tectonic uplift was then released.Due to delay effect of river incision,glacial and denudational isostatic uplift,as well as process of lateral erosion,river incision was not linearly related to tectonic uplift.Utilization of vertical incision rate to represent uplift rate should be done cautiously.
  • CHENG Qin-Juan,, CAI Qiang-Guo, ZHENG Ming-Guo
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    Soil crust is formed on many soils of the Loess Plateau during rainfall,and a number of researchers paid attention to its effects on infiltration,runoff production and sediment yield.Based on field data,this paper analyzed the factors influencing runoff production(such as infiltration and rainfall intensity) and the effects of soil crust on runoff production in critical condition.It is found that in the condition of the special runoff mode,that is,runoff begins when rainfall intensity exceeds soil infiltration rate of the study area,soil crust reduce infiltration,and so reduce the critical rainfall intensity condition of runoff production and improve the probability of runoff beginning.Under the field condition,rainfall intensity is changeful,high probability of runoff beginning does not induce the increasing of runoff volume,for that the runoff volume is affected by other factors,such as rainfall lasting time and rainfall intensity.However during the indoor experiments,the factors are controllable,for example,rainfall intensity and rainfall lasting time is constant,so the reduction of critical rainfall intensity means the predating of runoff beginning and the increasing of runoff volume.
  • YONG Bin, ZHANG Wan-Chang, LIU Chuan-Sheng
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    Topographic index is an important parameter of topographic characteristics,which is normally used to approximately characterize the spatial distribution of source area of surface runoff and ground water tables in a catchment.Under the 0.5白0.5? regional climate model scoop,scaling effect of topographic index,which is calculated by the modified multiple flow direction algorithm,resulted from the terrain discretization and smoothing effects was explored,the statistic correlations of topographic indexes in 100 m and 1000 m grid size scales were quantitatively analyzed respectively and the transferring relations between these two resolutions in regional scale modeling applications were given.Consequently,differences in mean topographic indexes computed from regional climate model grid-size scale and GCMs were discussed and compared.This result has a practical implication for large scale hydrological model.Especially,this study opens a way to accurate terrain analyses to be used in the land-surface process modeling for regional scale application.
  • LI Xiang, PAN Yu-Chun, ZHAO Chun-Jiang, WANG Ji-Hua
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    This paper presents four methods for estimating spatial distribution of soil organic matter and examines these methods’sensitivity to the sampling number.The four methods are ordinary kriging(OK),simple linear regression(RG),cokriging(COK),and regression-kriging(RGK).All sampling sites are randomly divided into two groups: interpolation dataset(200 points) and validation dataset(62 points).The organic matter of interpolation subset and alkalizable nitrogen of all observations are used to mapping soil organic matter.Among four methods,ordinary kriging,only using the information of organic matter,yields lowest accurate predictions and smallest proportion of the total variation,while regression-kriging using secondary data(alkalizable nitrogen) yields highest accuracy and largest variation explainable.To examine the effect of sampling number on the performance of four mapping methods,four subsets of 40,80,120,160 sampling sites are randomly selected from the interpolation dataset.For each subset,organic matter is estimated over the study area by four methods,respectively.The results show that the accuracy performances of four methods are RGK>COK>RG>OK.Moreover,the results indicate that the performance of simple linear regression remain stable,and that others perform better when the sample size of organic matter increased.
  • FU Jin-Mu, LIU Min, HOU Li-Jun, OU Dong-Ni, LIU Qiao-Mei
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    The influences of sewage discharge on environmental geo-chemical processes of nutrients were investigated in the Changjiang(Yangtze) River estuary in this study.The result indicates that there was obviously enrichment of NH4+-N and TIN in tidal water,tidal surface-sediment pore waters and surface sediments adjacent to sewage outlets in the estuary.The enrichment of nitrogen was considered to be related not only to the inputs of nitrogen from sewage outlets,but also to the changes of environmental factors induced by sewage discharge.In contrast,there was no significant enrichment of NOx-—N in the tidal water,tidal surface-sediment pore waters and surface sediments from the estuary,which showed that external inputs of nutrients was not the primary factor controlling the distribution of NOx-—N.It was also shown that the diffusive fluxes of nitrogen across sediment-water interface was markedly higher at sewage outlets than at the control sampling sites in tidal flats,indicating that sewage discharge not only increased the accumulation of nitrogen in the tidal flat,but also strengthened the exchange process of nitrogen across tidal sediment-water interface.
  • ZUO Shu-Hua, LI Jiu-Fa, SHI Lian-Qiang, YING Ming, XU Hai-Gen
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    Making clear the evolutional process of Meimaosha shoal in the Changjiang(Yangtze) River estuary can provide scientific basis for the construction of a reservoir between the sand ridge and the river bank.Supported by GIS software,15 pieces of charts of the Meimaosha shoal of the South Passage of the Changjiang River etuary were studied.The formation history and evolutional process of the Meimaosha shoal were discussed by the multi-methods.The results showed that,the form and growth of the Meimaosha shoal had undergone three phases which are erosion of local beach,growth of spit and form of sand ridge;the Meimaosha shoal had the character of tidal sand ridge as its middle axes had taken on a good stability along northwest to southeast under the action of steady and driving flood and ebb tides in the passed half century.After 1959,the deposition and erosion of sediment changed very slightly.The volume of 0m sand body change basic invariable,sand body of-2m had been slightly washed out with the erosion rate of 0.07?106m3/a,reflecting the Meimaosha shoal stability is quite good.
  • DU Jia, ZHAO Yun-Sheng, SONG Kai-Shan, WU Tai-Xia
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    Polarization is a basic nature of light.Different state of polarization can be generated by different earth targets or different state of a same earth target,which relates closely to the wavelength,therefore the detection of polarization information of earth target has become a new method of remote sensing target recognition.In this paper,we have inferred the function of solar zenith angles and degree of soil polarization.Solar zenith angle is the primary factor affecting the irradiance,therefore studying the rule of solar zenith angle and degree of soil polarization may provide more important parameters for polarized remote sensing interpretation and help to object precise recognition and inversion.
  • FANG Qiao-Min, GONG Dao-Yi, MAO Rui
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    Authors analyzed the changes of daily precipitation for 164 meteorological stations in China in winter during the period 1956-2002.According to the trends of seasonal precipitation change,7 sub-regions were determined and details for each sub-region were investigated.China as a whole,the wintertime precipitation,daily precipitation intensity,and the number of extreme precipitation events showed increasing trends.Among all 7 sub-regions,Northwest China experienced relatively significant changes,with a trend of 7.03%/10a in precipitation,of 0.76 d/10a in the number of rainy days,and of 0.04 mm/(d·10 a) in precipitation intensity.Particularly a notable jump-like rise occurred in the late 1980s.In North and Middle China the precipitation amount showed decrease trends.Three southern sub-regions showed notable and same increasing trends.The relationship between daily precipitation variability and temperature was very weak in South and Southeast China,but their links to winter monsoon and Eurasia teleconnection pattern were significant.The daily precipitation variability and temperature in Southwest China showed strong connection to Arctic Oscillation.There was no consistent and notable trend in Northeast China.
  • XU Yan-Wei, KANG Shi-Chang, ZHOU Shi-Qiao, CONG Zhi-Yuan, CHI Yan-Yan, ZHANG Qiang-Gong
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    Precipitation samples were collected at Nam Co Comprehensive Observation and Research Station,Tibet Plateau,during August to October of 2005.Relationships between δ18O in precipitation and moisture source are analyzed by using air mass backward trajectories.Difference of moisture source is the primary factor which influences variations of δ18O.While more negative δ18O values occur in precipitation which is caused by moisture originating mainly from Indian Ocean and transported by summer Southwest Monsoon,less negative δ18O values are associated with precipitation by local moistures and westerlies.According to the air mass backward trajectories,precipitation events are divided into two types: continental and marine precipitation.Positive correlations exist between δ18O and air temperature for both types of precipitation events,suggesting secondary affects of temperature on precipitation δ18O.
  • LI Yue-Xia, SHANGGUAN Tie-Liang
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    This paper studied floristic diversity of seed plants in Shanxi Province using some basic methods and principles of the floristic geography and based on the composition and geography elements of the families,genera,species of plants from Shanxi Province.The results are as follows: The diversity is abundant in this area,there are 2576 species of seed plants in Shanxi Province,which belong to 816 genera and 143 families(not including cultivated plants).Among them there are about 6 families,13 genera,28 species are in Gymnospermeae;137 families,803 genera,2548 species in Angiosperm,which shows the distribution of plants in Shanxi Province is consistent with the climatic features of the area.Analysis of the floristic elements based on families,genera,and species shows that they are very complex in Shanxi Province.Among the areal-types of Chinese genera of seed plants,there are 15 types and 16 subtypes in this area.Temperate floristic elements are significantly dominant in genera,in which percents of North Temperate distribution is the highest,25.5% in the total number of genera in this area.It is indicated that this area has obvious temperate characteristics of the flora,and it also has the characteristices of permeation,intersection,transition and frangibility.
  • BAO Cun-Kuan, SHU Ting-Fei
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    China had spent 10 years since 1995 to build its strategic environmental assessment(SEA) system from conception to legislation.This paper concludes the outcomes,experiences and problems in researching on theories,methods and techniques,practices and management system of SEA and/or SEA for planning/program level in China firstly.Then it prospects the future SEA in China and gives some proposals including to build a complete EIA system covering all sections and the whole process of strategic decision-making,and strengthen the relationship between SEA and ecological planning(EP).The systems of both SEA and EP should be built under this framework,and SEA should be used as an important measure for promoting decision-making more democratic and scientific and finalizing sustainable development strategies.