摘要
复垦土壤质量的恢复评价研究主要借鉴土壤质量评价方面的研究。传统的土壤质量评价方法主要有主成分分析法、层次分析法、模糊评价法、熵权法等,这些方法均需要确定权重,而且计算量较大。在突变理论和模糊数学相结合产生出的突变级数法应用到土壤质量评价中,对张集矿区复垦土地进行了评价,并对突变评价值偏高的问题,对其进行改进,通过数值转化的方法来降低评价值。结果表明:经转化后的突变评价值与传统方法(主成分分析法)得到的结果基本一致。并且突变级数法与传统方法相比,具有两个特点:(1)不需要确定权重,减少了人为的主观性问题;(2)突变级数法计算量小,应用较为简便。
The research on reclamation soil quality recovery＇ s evaluation mainly comes from soil quality evaluation research. Traditional soil quality evaluation methods mainly include the principal component analysis method, the hierarchy analytic method, the fuzzy evaluation method, the entropy weight method, mutation progression method, and so on. These methods all are necessary to determine the weight and do large amount of calculation. The mutation progression method resulted from catastrophe theory and fuzzy mathematics and put forward by the French mathe- matical James＇s Rene Thom is first applied to evaluate the soil quality by the author. This is the first innovation point. The Zhangji Reclamation Land, Anhui Province, China in a mining land is taken as instance for soil quality re- covery evaluation. According to the reclamation region soil＇ s features, the hierarchical evaluation index system was built. The appropriate state variables and control variables were found out by catastrophe theory＇ s basic model. The results show that the values from the transformed mutations progression method and the traditional methods （princi- pal component analysis） are basically identical. The soil quality grows with the reclamation year increase. This dem- onstrates that the mutation progression method applied to soil quality assessment is reasonable. The mutation pro- gression method has two advantages; one is not necessary to determine the weight, the other is only necessary to do a few calculations. Compared with the traditional method, the mutation progression method reduces the human subjec- tivity and is simple for its application. The results proved that this method has a certain generality. This is the second innovation point for this article.
出处
《干旱区地理》
CSCD
北大核心
2014年第5期1012-1018,共7页
Arid Land Geography
基金
国家自然科学基金(50769005)
国家自然科学基金(51149006)
关键词
复垦
突变理论
土壤质量评价
突变级数法
reclamation soil
catastrophe theory
evaluation of soil quality
catastrophe progression method
