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    题名 作者 年代 出处 被引量
1SOIL SALINITY CONTROL REGARDING SUBSURFACE WATER REGULATION IN NORTH CHINA PLAIN显示文摘The North China Plain (NCP) lying along the eastern coastal area withgeogriaphical coordinates 100°to 120°and 30° to 40°W, is one of the mostimportan agncultural ngons in China. A problem in soil salmization has beenfound in vast areas along the lower reaches of the Yellow hiver and north of it. After30 years of work on saline soil amelioration, 2.0 million ha has been improved,accounting for over 60 percen of the total ongnal saline soil area. Ths achievetnenthas ban obtained in close relation to water conservancy work. The author analyzessalthezation amelioration by using measures concerning subsuffoce water regulation.Ih addition to water conservancy measures, thes paper also descnbes acomprehensive way to ameliorate salthezation in northem NCP. Finally, the authorstresses the necessity of combining all measures together into a whole system forsolving salinization problems in northem NCP.Liu Changming(Shijiazhuang Institute of Aghcultural Modernization,United Research Center for Water Problems, CAS, Beijing 100101 People’s Rcyublic of China) 1996Journal of Geographical Sciences1996,6,4:3
2Obstacles,and complications of limb lengthe-ning by the Ilizarov technique显示文摘Paley D Problem S 1990Clin Orthop1990,250,:1
3A bibliography for some gories in discrete location science显示文摘Revelle C S Eiselt H A fundamental problem cate Daskin M S 2008European Journal of Operational Research2008,184,3:1
4Guidelines for the deter- mination of death显示文摘The Medical Consultants on the Diagnosis of Death to the Presi- dent's Commission for the Study of Ethical Problems in Medicine and Biomedical and Behavioral Research 1981JAMA1981,246,:1
5The t model misspecification in behavioral and organizational research and some rec- ommended solutions 显示文摘MacKenzie problem of S B Podsakoff P M Jarvis C B 2005Journal of Applied Psychol- ogy2005,90,4:1
6COMPREHENSIVE PLANNING FOR WATER RESOURCES EXPLOITATION AND WATER POLLUTION CONTROL FOR CHANGLI COUNTY-A CASE STUDY FOR SMALL TOWNS OF CHINA显示文摘One of the major characteristics about the water resources and water pollution in China is that the southem part of the country is endowed with abundant water resources with serious water pollution occurring in some areas, whereas the northem part is endowed with limited water resources with relatively more serious water pollution existing in some areas. Urban areas have been mainiy affected by point source pollution while ecological damage is most serious in rural areas and small towns. With rapid development of socio-ecomony and urbanization, many new small towns have occurred in China, and the concemed ecological problems such as water pollution and soil erosion have been gradually changed into local point source pollution. Water envirormental problems are geding more and more serious. To resolve the above mentioned problems and to provide a mode for towns in North China, the Research Center of Water Problems of Chinese Academy of Sciences undertook the research project of comprehensive planning of urban environment of Changli County, Hebei Province. Conceming the limited financial strength of the county and its relatively low level of socio-economic development, the planning is aimed to protect and to improve Changli’s environment with the least cost, to promote the suitable development of socio-economy of Changli County, and to carry out effective environmental regulations, control and managemeat.Cheng Tianwen Mou Haisheng(United Research Center for Water Problems, CAS, Beijing 100101People’s Republic of China) 1996Journal of Geographical Sciences1996,6,3:0
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