| 黄河源区现代沙漠化过程影响因素定量分析 |
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| 引用本文： | 李晋昌,杨永刚,张彩霞.黄河源区现代沙漠化过程影响因素定量分析[J].干旱区资源与环境,2011(2):88-92. |
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| 作者姓名： | 李晋昌 杨永刚 张彩霞 |
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| 作者单位： | 山西大学黄土高原研究所;中国科学院寒区旱区环境与工程研究所; |
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| 基金项目： | 国家自然科学基金重点项目(40638038)资助 |
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| 摘 要： | 以青海玛多县为例,通过数学模型和因子分析法对黄河源区现代沙漠化过程的影响因素进行了定量分析.基于对该区的实际调查,认为年平均相对湿度、年均气温、年降水量、年均风速、总人口、牲畜数量和工业总产值可能是影响该区沙漠化的因素.1976-1994年期间,研究区沙漠化总面积呈迅速扩展趋势,沙漠化程度呈加重趋势.研究表明:研究区沙...
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| 关 键 词： | 黄河源区 沙漠化 影响因素 数学模型 因子分析 |
Quantitative study on influencing factors of desertification in headwater area of Yellow River |
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| LI Jinchang,YANG Yonggang,ZHANG Caixia.Quantitative study on influencing factors of desertification in headwater area of Yellow River[J].Journal of Arid Land Resources and Environment,2011(2):88-92. |
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| Authors: | LI Jinchang YANG Yonggang ZHANG Caixia |
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| Institution: | LI Jinchang1,YANG Yonggang2,ZHANG Caixia2(1.Institute of Loess Plateau,Shanxi University,Taiyuan 030006,P.R.China,2.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Science,Lanzhou 730000,P.R.China) |
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| Abstract: | Taking Maduo County of Qinghai for example,based on mathematical model and the method of factor analysis,the influencing factors of desertification in headwater area of Yellow River have been quantitatively studied.Based on survey,the following seven influencing factors are determined,they are average relative humidity,average temperature,annual precipitation,average wind speed,total population,livestock number and gross industrial output value.The total desertification land had been increasing obviously te... |
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| Keywords: | headwater area of Yellow River desertification influencing factors mathematical model factor analysis |
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