| 青海湖地区耕地利用变化的动力机制和趋势模型 |
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| 引用本文： | 俞文政,曲福田,祁英香,刘鹏刚,史军.青海湖地区耕地利用变化的动力机制和趋势模型[J].水土保持通报,2009,29(5):169-173. |
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| 作者姓名： | 俞文政 曲福田 祁英香 刘鹏刚 史军 |
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| 作者单位： | 俞文政,YU Wen-zheng(南京信息工程大学,公共管理学院,江苏,南京,210044;南京农业大学公共管理学院,江苏,南京,2100953);曲福田,Qu Fu-tian(南京农业大学公共管理学院,江苏,南京,2100953);祁英香,史军,QI Ying-xiang,SHI Jun(南京信息工程大学,公共管理学院,江苏,南京,210044);刘鹏刚,LIU Peng-gang(宁波职业技术学院,浙江,宁波,315800) |
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| 基金项目： | 国家973项目/中荷科学战略联盟项目(荷兰皇家科学院与中国科技部)，国家社会科学基金 |
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| 摘 要： | 根据青海湖地区土地资源和人口现状与特点,估算了该区及各县现实条件下土地资源极限人口承载量和最大适宜人口承载量、草地和耕地所能承担的人口承载量及其比重,结果表明青海湖地区土地极限人口承载总量为6.96×10~5人,其中耕地为4.84×10~5人,草地为2.13×10~5人,承载比率分别为69.44%和30.56%;区域土地最大适宜人口承载总量为3.25×10~5人,其中耕地为1.81×10~5人,草地为1.43×10~5人,承载比率分别为55.82%和44.18%.另外,区域各县土地最大适宜人口承载总量和承载量也存在较大差别,且各县的耕地和草地的承载量也存在差异,适宜人口承载量从大到小依次为:共和>海晏>刚察>天峻.
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| 关 键 词： | 青海湖地区 土地资源 人口承载量关键词 青海湖地区 土地资源 人口承载量 |
| 收稿时间： | 2008/11/26 0:00:00 |
| 修稿时间： | 6/5/2009 12:00:00 AM |
Population Carrying Capacity of Land Resources in Qinghai Lake Region |
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| YU Wen-zheng,QU Fu-tian,QI Ying-xiang,LIU Peng-gang and SHI Jun.Population Carrying Capacity of Land Resources in Qinghai Lake Region[J].Bulletin of Soil and Water Conservation,2009,29(5):169-173. |
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| Authors: | YU Wen-zheng QU Fu-tian QI Ying-xiang LIU Peng-gang and SHI Jun |
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| Institution: | College of Public Administration, Nanjing University of Information Science & Engineering, Nanjing, Jiangsu 210044, China;College of Public Administration, Nanjing Agricultural University, Nanjing, Jiangsu 2100093, China;College of Public Administration, Nanjing Agricultural University, Nanjing, Jiangsu 2100093, China;College of Public Administration, Nanjing University of Information Science & Engineering, Nanjing, Jiangsu 210044, China;Ningbo Polytechnic College, Ningbo, Zhejiang 315800, China;College of Public Administration, Nanjing University of Information Science & Engineering, Nanjing, Jiangsu 210044, China |
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| Abstract: | Based on the analysis of land resources and current population status and the characteristics in the Qinghai Lake region, the ultimate and maximal population carrying capacity of land and the pop ulation carrying capacity of cultivated land and grassland and its proportion in each county are estimated. Results show that the ultimate population carrying capacity of land in the region is 695973, in which cultivated land is 483720, grassland is 212703, and the corresponding capacity ratios are 69.44 % and 30.56 %, respectively. The total maximal population carrying capacity of land is 324620, in which cultivated land is 181219, grassland
is 143410, and the capacity ratios are 55.82 % and 44.18 %, respectively. The maximal population carrying capacity is diffident in each county. Population carrying capacities of Gonghe County, Haiyan County, Gangcha County, and Tianjun County are 7.01756, 6. 00874, 5.96404, and 0.03318, respectively. The capacity of cultivated land and grassland in each county is also different. |
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| Keywords: | Qinghai Lake region land resource population carrying capacity |
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