陇东黄土高原土壤侵蚀的人文因素及经济损失分析  

Analysis on human activity driving factors and economic losses caused by soil erosion in Longdong Loess Plateau

作　　者：潘竟虎[1] 张伟强[1] 秦晓娟[1] 

机构地区：[1]西北师范大学地理与环境科学学院,兰州730070

出　　处：《中国水利》2008年第12期37-39,共3页China Water Resources

基　　金：西北师范大学青年基金项目(NWNU-QN-05-41);西北师范大学学生学术科研资助项目(2006)

摘　　要：选取13个主要的人类活动指标因子,利用灰色系统理论与方法计算人类活动与土壤侵蚀之间的关联度指数,探讨人类活动对水土流失的干扰度,并建立驱动力定量模型;采用替代价值法、机会成本法、影子工程法、恢复费用法对陇东黄土高原项目区土壤侵蚀经济损失价值进行了估算。结果表明:坡耕地面积比重和人口密度是陇东土壤侵蚀和水土流失的主要驱动力;项目区2004年度的土壤侵蚀经济损失达5734万元。This paper calculated the connection degree of human activity and soil erosion in Longzhong Loess Plateau by using the gray system theories by selecting 13 main human activity indices, and discussed the disturbance degree of human activity to soil erosion. Then,the author evaluates economic losses of soil erosion in study area based on the market valuation,opportunity cost methods,shadow engineering methods and restoration expenditure methods. The results indicated that：The proportion of sloping cultivated land and the density of population were key driving factor of soil erosion,and the total economic losses caused by soil erosion adds up to about 57340 thousand yuan（RMB）in 2004.

关 键 词：土壤侵蚀 人文因素 经济损失 关联度 陇东黄土高原 

分 类 号：S157[农业科学—土壤学] X196[农业科学—农业基础科学]