新疆典型区沙漠化驱动因素定量分析研究

Quantitative Analysis of Driving Factors for Sandy Desertification in Typical Area of Xinjiang

以新疆典型研究区若羌县为例,定量分析其沙漠化驱动因素。依据研究区1959～2003年的社会因素和自然因素数据,运用主成分分析方法分析和提取能够表征沙漠化发展的社会和自然因子,并从单一因素和综合因素两个角度引入影响系数的概念分析它们对当地土地沙漠化的影响程度。由此得出,研究区的土地沙漠化发展与社会因素有明显的相关关系,而与自然因素关系微弱,研究区防治沙漠化的根本是降低人为等社会因素的影响作用,科学合理地进行生产活动。

Taking a typical studied area in Ruoqiang county of Xinjiang as an example,the driving factors of desertification are analyzed quantitatively.The principal component analysis method is used to analyze and extract the social and natural factors that can indicate the development of desertification based on the social and natural data from 1959 to 2003,and the influencing coefficient is introduced and used to express the influence degree to local area desertification from both single and comprehensive factors aspects.The conclusions show that the development of desertification has close relationship with social factors,but weak connection with natural factors in the studied area,the basic direction of desertification prevention is to reduce the influence of human social factors,thence the scientific and reasonable production activities should be carried out.