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ANALYSIS OF CApITAL FLOW WITH GIS——Two Approaches for Regional Investment in china

5th International Symposium on High-Tech polymer Materials

作者： Li-ming Tao Hai-xia Yang Lin-Fan Shi-yong Yang Laboratory of Advanced polymer Materials Institute of Chemistry Chinese Academy of Sciences Beijing 100080 p.k china

＜正＞Fluorinated polyimides（FpIs）have attracted much attention in the last decades owing to their good combined properties,which made them good candidates as insulating or protective coatings for many other high-tech ***,considerable efforts have been made to meet the requirements for fluorinated polyimides by further decreasing dielectric constant and dissipation factor,lowering moisture adsorption and improving process performance.

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Chinese Geographical Science 2003年第1期13卷 2-8页

作者： YAO Yong-ling ( public Administration School, Renmin University of china, Beijing 100872, p. R. china) public Administration School Renmin University of China Beijing P. R. China

GIS technology has been mostly concerned with handling physical data andmodeling physical environment. However, the retirements of GIS for handling socio-economicinformation in many cases are different from those concerning phenomena in the physical *** of capital flow among regions requires the transitions both from economic values tophysical landscape and from physical surface to economic explanation. Rapid growth of Chineseeconomy comes mainly from investment. There are two main ways for obtaining high growth ofinvestment. One is government expenditure which usually invests in regional facility and amenityblock, which is regarded as stimulus for attracting investment. The other is the creation ofinvesting center and corresponding capital source areas, both of which need the central city withthe highest growth rate of investment among regions. This paper presents the cluster areas of bothgovernment revenue and total investment, the potential situation of capital flow between centralcity Shanghai and its neighbor provinces by using Classification' and Interpolation' functions ofArcView GIS.

关键词： capital flow geographic information system (GIS) regional investment cluster analysis

pRESSURE OF WATER SHORTAGE ON AGRICULTURE IN ARID REGION OF china

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Chinese Geographical Science 2003年第2期13卷 124-129页

作者： LI Xin (University of Science and Technology of Suzhou, Suzhou 215011, p.R.china) University of Science and Technology of Suzhou Suzhou P. R. China

The arid areas in china are mainly located in North china and Northwestchina. The North china is the main region for food production. There is 31. 19% of the totalfarmland and 26. 01% of the total population, but only 6. 14% of the available water resources ofchina. Groundwater is over pumped (6. 53 X 10~9m^3 every year) in the regions of Beijing, Tianjin,and Hebei province, so water supply could not meet the water demand there. The distribution of waterin Northwest china is uneven, some inland rivers and lakes are dried up, and desertification hasexpanded since river water in the upper and middle reaches is diverted for irrigation. Up to 2050,population will be up to 1. 6 X 10~9 in china, and industry will be developed fast, therefore 50% ofthe water supply will be used by industry and resident, and water for agriculture will be decreasedyear by year. In the coming 50 years, water demand for agriculture will be increased by 5. 6 x10^9m^3 in the Huanghe (Yellow) River valley, and by 1. 7 x 10~9m^3 in the Northwest china. It willbe impossible for the Huanghe River to meet the water demand, because it always dried up in the coldhalf year since 1984. To avoid water shortage of agriculture in the arid regions, it is necessaryto divert water from the Changjiang (Yangtze) River in the south of china, and to use waterefficiently. It is the best way to use drip irrigation in agriculture, recycle water in industry andresident use, and control water pollution. Otherwise water shortage in the arid regions willrestrict the development of agriculture in china.

关键词： water shortage water demand agriculture arid region of china

Cretaceous-Early Eocene Tectonic Stress Field in china

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Acta Geologica Sinica(English Edition) 1989年第3期63卷 227-239页

作者： Wan Tianfeng and Zhu Hong china University of Geosciences, Beijing, china 2Wan Tianfeng male born in 1938 engaged in geological education since 1959 and now is a professor of the Teaching and Research Group of Structural Geology China University of Geosciences Beijing 100083. china University of Geosciences Beijing China

The Cretaceous-early Eocene tectonic stress field in china was reconstructed using the data of 369 largeand medium-scale flexural folds and 157 joint sets. It was found that the maximum compressive principal stress axis in eastern china dips 32° NE (nearly horizontal), and strikes SW 212°, whereas that in western china dips 15° NE (also nearly horizontal) and trends SW 195°. The estimation of the dip angles of fold limbs and the palaeotectonic stress values indicates that there was a tendency of gradual weakening of tectonism from southwestern to northeastern china in the Cretaceous-early Eocene. At the depth of 2-3 km, the differential stress value changes from 183 Mpa in Tibet to 100 Mpa in North and East china.The authors consider that the tectonic stress of this period was related to the north-northeastward movement and push of the Indian-Australian plate.

关键词： Cretaceous-Early Eocene Tectonic Stress Field in china

Characteristics and genetic mechanism of deep-buried clastic eureservoir in china

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Science china Earth Sciences 2008年第S2期51卷 11-19页

作者： ZHONG Dakang & ZHU XiaoMin china University of petroleum,Beijing 102249,china china University of petroleum Beijing China

Systematic researches to the clastic reservoirs in various types and various geological ages basins in china indicate that the present burial depth of deep buried clastic eureservoir ranges from 3000 to 6000 m,and its geological ages from paleozoic,Mesozoic to Cenozoic. It mainly deposited in delta (including braid delta,fan delta,normal delta),river,also shore,shallow lake,gravity flow channel and turbidity fan facies. The quartzose sandstone is the main reservoir rock of deep-buried clastic eureservoir in the shore facies in paleozoic,but the arenite and arkose sandstones are the main reservoir rock types in delta,river,shallow lake and gravity flow facies in Mesozoic and Cenozoic. The porosity of most of deep-buried clastic eureservoir is more than 10% and permeability more than 10×10?3 μm2. The forma-tion of the deep-buried eureservoir was related to the paleotectonics,paleotemperature,sedimentary environment,the deep dissolution caused by organic acid or carbonic acid,burial style,the abnormal high pore fluid pressure,early hydrocarbon charging,gyprock sealing,hot convective fluid flow and the mode of sand-mud interbedded,etc. The paleotectonics controls the burial style of sandstones,and the paleotemperature controls the diagenesis process. The sedimentary environment is the precondi-tion and foundation,the dissolution is the direct reason to generate the deep buried clastic eureservoir. The abnormal high pore fluid pressure,gyprock sealing,the mode of sand-mud interbedded,early hy-drocarbon charging and the structure fractures were the assistant factors of generating the deep buried clastic eureservoir.

关键词： deep buried clastic eureservoir characteristics genetic mechanism controlling factors

The Thermal Structure of the Upper Mantle in Eastern china——Inferred from the petrological Model

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Acta Geologica Sinica(English Edition) 1991年第2期65卷 195-201页

作者： Deng Jinfu and Zhao Hailing china University of Geosciences, Beijing 100083, china china University of Geosciences Beijing 100083 China

Cenozoic basalt in eastern china contains abundant ultramafic xenoliths which are specimens of pyrolitesreleased during basaltic magma eruption. A total of 405 p-T data of pyroxene in the ultramafic rocks have beencollected, which present a more precise pyroxene geotherm. The average geothermal gradient in the upper man-tle represented by the pyroxene geotherm is about 3.3℃ / km, which is much less than that derived from theconductive thermal model (≈14℃ / km), implying the great significance of convective heat transfer. The calcu-lation shows that the contributions of convective and conductive heat transfers are 79% and 21%, *** perturbation in the thermal structure of the upper mantle is an important manifestation of thetectonothermal event of Cenozoic continental rifting and intense basaltic volcanism in eastern china. Based onthe pyroxene geotherm and its comparison with the current geothermal field derived from the measurements ofthe surface heat flows, it is suggested that the Moho may be a secondary thermal boundary. The currentgeothermal field and the thermal structure of the lithosphere in eastern china may mainly reflect the result ofthe tectonothermal disturbance in the Neogene-Quaternary, in other words, the lithosphere has just begun toCool.

关键词： The Thermal Structure of the Upper Mantle in Eastern china

Irrigation Water Use Efficiency of Farmers and Its Determinants: Evidence from a Survey in Northwestern china

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Agricultural Sciences in china 2010年第9期9卷 1326-1337页

作者： WANG Xue-yuan College of Economics, Zhejiang Gongshang University, Hangzhou 310018, p.R.china College of Economics Zhejiang Gongshang University Hangzhou 310018 P.R. China

Irrigation water shortage is becoming an increasingly serious problem in agricultural production. In this case, it is very important for policy makers to take measures to improve irrigation water use efficiency, especially in the water-scarce areas. In this paper, the data envelopment analysis （DEA） techniques, based on the concept of input-specific technical efficiency were used to develop farm-level technical efficiency measures and sub-vector efficiencies for irrigation water use. The Tobit regression technique was then adopted to identify the factors that influence irrigation water efficiency differentials under the shortage of water resources. Based on a sample data of 432 wheat farmers in northwestern china, our experimental results of the DEA analysis showed the average technical efficiency of 0.6151. It suggested that wheat farmers could increase their production by as much as 38.49% by using inputs more efficiently. Further, the mean irrigation water efficiency of 0.3065, suggested that wheat farmers could produce the same quantity of wheat using the same quantity of inputs but with 69.35% less water. The results of the Tobit regression analysis showed that the farmer＇s age, income, education level, and the farm size tended to affect the degree of irrigation water efficiency positively, and the channel conditions and different irrigation methods made a significant impact on irrigation water use efficiency. Furthermore, the arrangements of exclusive water property rights and competitive water price mechanism have effectively encouraged the water saving behavior of farmers. These results are valuable for policy makers since it could help to guide policies towards high irrigation water use efficiency.

关键词： irrigation water efficiency determinants data envelopment analysis Tobit regression

STUDY ON URBAN LAND SAVING IN THE ECONOMICDEVELOpED COASTAL REGION OF china

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Chinese Geographical Science 2001年第1期11卷 11-16页

作者： SHEN Jian-rong, CHEN Shuang, YAO Shi-mou (Department of Urban and Resources Science, Nanjing University, Nanjing 210093, p. R. china Nanjing Institute of Geography and Limnology, the Chinese Academy of Sciences, Nanjing 210008, p. k china) Department of Urban and Resources Science Nanjing University Nanjing P. R. China Nanjing Institute of Geography and Limnology the Chinese Academy of Sciences Nanjing P. R. China

In the initial period of industrialization a great deal of land is needed for Chinese industry development as well as land resource per person of china is much lower than the average value in the world, thus it is necessary to save land in Chinese urban constrUction. This paper mainly discussed the features of urban land use in economic developed coastal cities: one is that the index of urban land per person in middle-small cities was higher than in large cities; another is that urban land has not been used highly and strongly; the third is that the industrial land occupied an irrationally large percentage of whole urban land; the final is that rural enterprises took up a quantity of land. Thereafter, this paper put forward five land-saving measures: first, to adopt the idea of saving land; next, to adjust the land-use structure when redeveloping the old city and alternate some land use when adjusting the industry structure of the city; the third, to develop the system of payment for using land and the management of urban planning; finally to enhance the effective regional plan and the urban landuse plan.

关键词： cities land saving measures the coastal region of china

THE HYDROLOGICAL EFFECT UNDER HUMAN ACTIVITIESIN THE INLAND WATERSHEDS OF XINJIANG, china

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Chinese Geographical Science 2001年第1期11卷 27-34页

作者： LI Xin, JI Fang, ZHOU Hong-fei (Xinjiang Institute of Ecology and Geography, the Chinese Academy of Sciences, Urumqi 830011, p. k china) Xinjiang Institute of Ecology and Geography the Chinese Academy of Sciences Urumqi P. R. China

Natural environment, inland water distribution and water circulation has been changed greatly affected by human activities in Xinjiang, china. Human activities developed quickly in the inland watersheds in Xinjiang after 1950. More than 50% of river water is drawn into irrigation area, and all water in parts of little river is drawn to canal or reservoirs. However, there is evident hydrological effect caused by human activities. 1) water distribution in arid land has changed. A lot of river water is drawn into oasis and water table inside of oasis has risen but declined out of oasis. However, water table has declined in some cities because of over pumping for groundwater. 2) Stream process has changed after water drawing and drainage for irrigation. Runoff in the lower reaches of river has generally decreased, and the lower reaches of some rivers are even disappeared for stream. 3) Large watersheds have been divided into several small watersheds. In some tributaries, most of the river water has drawn to irrigation area so that stream in the lower reaches has disappeared for years. 4) Evaporation at oasis has increased from 50–200mm/a to 800–1300mm/a after reclamation. But it decreased to 50mm/a or less out of oasis. Some lakes have reduced or dried. Water-system with canals and reservoirs has appeared in the oases. 5) Water quality of inland rivers and lakes has generally deteriorated because it accepts drainage water from farmland and factories. 6) Effective scale of human activities on hydrological process in arid land has expanded from separate rivers to all watersheds; from surface water to groundwater; from drought season to flood season; and from single year to several years. Scale of the effect of human activities to hydrological process is going larger and larger. Along with the effective usage of water resources in the inland watershed in Xinjiang, the hydrological effect of human activities will be mainly change to: 1) river in pain area will be canalized;

关键词： Xinjiang inland rivers human activities hydrological effects