陇中黄土高原水土流失的人文因素分析  

Paritional Management Modes and Responding of Soil Erosion to Human Activity in Longzhong Loess Plateau

作　　者：杨振[1] 牛叔文[1] 吴文恒[1] 

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000

出　　处：《干旱区资源与环境》2005年第6期124-128,共5页Journal of Arid Land Resources and Environment

基　　金：科技部软科学项目"黄河上游水资源与生态环境保护及建设研究"(编号:2003DGS3B039);甘肃发改委项目"甘肃区域水资源承载能力与节水型社会建设问题研究"联合资助

摘　　要：文章选取9个主要的人类活动指标因子，采用灰色系统理论与方法计算了人类活动与水土流失之间的关联度指数，探讨了人类活动对水土流失的干扰度，并以此为基础对陇中黄土高原进行水土流失生态分区。分区结果表明，兰州的人类活动综合干扰度大于12．0，是研究区人类活动干扰强度最大的区域；天水位居第二，干扰度在7．0～12．0之间；临夏、庆阳和平凉位居第三，干扰度在6．0～7．0之间；白银、定西两市是人类活动干扰程度相对最轻的区域，干扰度在5．0～6．0之间。据此，笔者因地制宜地提出了相应的分区治理模式。We selected nine main index about the human activity, and calculated the connection degree of human activity and soil erosion by the gray system theories, then discussed the disturbance degree of human activity to soil erosion. Based on these, the soil erosion ecosystem partition of Longzhong loess plateau was made. The results showed the comprehensive disturbance of human activity in Lanzhou was larger than 12.0, where disturbance degree was the biggest of all. Tianshui is the second, the comprehensive disturbance was at 7.0～12.0; Linxia, Qingyang arid Pingliang resided the third, the comprehensive disturbance was at 6.0～7.0. Relatively, the disturbances of human activity in Baiyin and Dingxi were the most light and their comprehensive disturbance degrees were between 5.0 and 6.0. On the grounds, homologous subarea management modes were put forward in detail.

关 键 词：水土流失 人文因素 关联度 干扰度 分区治理 陇中黄土高原 

分 类 号：S157.1[农业科学—土壤学]