花岗岩侵蚀区土壤质量评价初探——以长汀河田地区为例

The Elementary Probe of Soil Quality Value in the Eroded Granite Area-Take the Hetian of Changting County as an Example

在福建省长汀河田花岗岩侵蚀区生态环境调查的基础上,对侵蚀区的土壤进行了营养成分等系统测试,选择其中的有机质、全N、全P、全K、碱解N、速效P、速效K、pH值等项目作为评价指标,应用主成分分析法,对本地区的土壤进行综合评价,并用灰色关联度分析方法进行对比。结果表明,两种评价方法得出的结论基本一致。

Based on the investigation of eroded granite area eco - environment at the Hetian of Changting county in Fujian Province, the nutrient components in the soil were tested. The organic matter, Total N, Total P, Total K, Available N, Available P, Available K, CEC, and pH value were chosen as main indexes for value, and the principal component analysis was used to evaluate twenty types of sample soil in this area. and gray relative analysis was done respectively at the same time . The similar results are found out from the two ways.