有关强度和软泥层深度的水田土壤模糊聚类分析  

Fuzzy clustering of paddy soils relating to soft layer and soil strength

作　　者：姬长英[1] 鲁植雄[1] 潘君拯[1] 

机构地区：[1]南京农业大学农业工程学院,南京210032

出　　处：《南京农业大学学报》2000年第1期101-104,共4页Journal of Nanjing Agricultural University

摘　　要：在水稻生长季节 ,测量了多种中国南方水田土壤的有关参数 ,给出了部分典型南方水田土壤机械组成、含水量、土壤强度和软泥层深度的数据。用模糊聚类方法 ,按有关水田土壤强度参数 ,将中国南方 16种典型水田土壤在λ =0 75的水平上聚成 4类 ;按软泥层深度将 18种典型水田土壤在λ =0 80的水平上聚为 7类。Various paddy field soils in South China were measured during the rice growing season and numerous data were collected concerning soil composition,water content soil strength and depth of soft soil layer.A similarity matrix of 16 samples was constructed,by means of which the soils were clustered at λ =0 75 into four groups based on soil parameters relating to soil strength and 18 samples were clustered at λ =0 80 into 7 groups based on the depth of soft soil layer.

关 键 词：水田土壤 软泥层深度 土壤强度 模糊聚类分析 

分 类 号：S155.42[农业科学—土壤学] S11[农业科学—农业基础科学]