内蒙古阴山北麓地区土地退化成因分析

Aanalysis of Contributing Factors of Soil Deterioration at the Northern Foot of Yinshan Mountain Inner Mongolia

土地资源是人类赖以生存的物质基础，是一种不可再生的最基本的资源。伴随着荒漠化的日趋严重，阴山北麓地区的土地退化问题也日益加重。本文采用主成分分析（ＰＣＡ）的方法，从影响土地退化的自然因素和人为因素中选出２３个因子，以内蒙古阴山北麓地区１１个旗（县）的１８６个乡（镇）、苏木的数据为基础，分析了影响该地区土地退化的主要因子，为退化土地类型区划分及防治措施的制定，提供了科学依据。

Soil resources is a material base which People live on, a kind of basic resources which can not be regenerated. With the severing of desertification, the problems of soil deterioration at the northern foot of Yinshan Mountain become more and more serious. The paper analyses the primary factor of affecting the soil deterioration of this area and provides scientific basis for the dividing of typical area of soil deterioration and for the formulating of prevention and cure measures by using the method PCA, choosing 23 factors form the natural and man-made ones affecting soil deterioration, and basing on datas including 186 shumo and 11 couties at the northern foot of Yinshan Mountain.