Study on the Optimal Use of Land from the Perspective of Soil Ecological Value

摘要

In order to achieve the optimal use of soil resources, not only the soil function value in research area should be calculated scientifically, but also some practical methods and tools should be researched in planning. The article took five districts of Zhengzhou city as research area, and took functional value indexes data in factor model, then get four main factors, correlation between each other is very weak. According to the factor score, the article analysed how to use the conclusion comprehensively from two aspects: single factor and integrated factor.