浙江省典型土壤的发生学性质与系统分类研究  

Genetic Characteristics and Taxonomic Classification of the Representative Soils in Zhejiang Province

作　　者：王晓旭[1] 麻万诸[2] 章明奎[1] 

机构地区：[1]浙江大学环境与资源学院浙江省亚热带土壤与植物营养重点实验室,浙江杭州310058 [2]浙江省农业科学院数字农业研究所,浙江杭州310021

出　　处：《土壤通报》2013年第5期1025-1034,共10页Chinese Journal of Soil Science

基　　金：国家科技基础性工作专项项目(2008FY110600);国家自然科学基金项目(41071145)资助

摘　　要：选取了浙江省29个代表性土壤剖面,采用剖面描述和土壤理化性质鉴定的方法,研究了这些土壤的发生学特性;依据《中国土壤系统分类检索(第三版)》,鉴定了这些土壤的诊断层和诊断特性,并探讨了其在中国系统分类中的高级单元归属。11个水田土壤具有水耕表层和氧化还原层,符合水耕人为土的鉴定特征,其中7个水田土壤剖面有铁聚现象,4个水田土壤剖面有铁渗淋亚层,可划分为3个土类和6个亚类。18个林地和旱地土壤呈酸性,盐基离子淋失严重,土壤颗粒组成和表层有机质分异较大,可划分为人为土、富铁土、淋溶土、雏形土和新成土5个土纲、6个亚纲、8个土类和14个亚类。Twenty-nine representative soil profiles were collected from Zhejiang Province for studying their genetic characteristics and taxonomic classification. The soil profiles included 11 paddy soils and 18 forest and upland land soils. Formation conditions of the soils were well described and physical and chemical properties of the soils were analyzed. The diagnostic horizons and diagnostic characteristics of the soils were carefully characterized, and types of the soils were classified according to the Keys to Chinese Soil Taxonomy （3rd edition）.Results showed that all of the eleven paddy soils have Anthrostagnic epipedon and Hydragric horizon and they all belong to Stagnic Anthrosols. Thereinto, seven soils have obvious iron accumulation phenomenon in their hydragrie horizons, while four soils have iron leaching sub-horizon. The 11 paddy soils could be sorted into three groups and six subgroups. The forest and upland land soils under the study are mainly acidic to strong acid with low base saturation, but they have varying texture and content of organic matter. They could be sorted into five orders （Aanthrosols, Ferrosols, Argosols, Cambosols and Primosols）, six suborders, eight groups and fourteen subgroups.

关 键 词：发生特性 系统分类 诊断层和诊断特性 浙江 

分 类 号：S151.1[农业科学—土壤学]