崇明岛土壤资源评价初探

Pring Research the Soil Resoure Evaluation on Chongming Island

根据上海市崇明岛资源调查结果，首先选择了土壤质量等级，土壤限制型为评价系统。其次，综合考虑崇明岛的实际情况和演变趋势，同时，在上海市土壤资源评价标准的基础上，制定了适合崇明岛土壤资源评价标准和评价因素权重。最后，采用了模糊聚类的方法，对崇明岛的土壤资源进行了分等划级，当λ＝０．７７９７时，可把崇明岛土壤资源划分为４个土壤质量等级和７个限制型，分析和评论了模糊聚类的结果。揭示了崇明岛土壤质量的递变规律，并指出了加速土壤正向演化的措施。

Based on the data acquired in the soil resource investigation of Chongming island in Shanghai city,which are suitable Chongmeng,standard and factor weights of evaluating soil have developed. Taking classes of soil quality and limiting types of soil as system of evalnatihng and comprehansively considering actual situation and evaloving tandace of the island.Chen, soil resource of the island was classied by fuzzy duster analysis,soil resources of island cand be duvided into four classes of soil quality and seven limiting types.as is equal to 0. 7797,divided resultes were discus. At the same time, the evolutionary rules of soil quality and the measurements that accelerated the right evolution of soil were proposed in this paper.