贵州省典型水耕人为土的发生学性状与系统分类研究  

Genetic Characteristics and Taxonomic Classification of the Representative Paddy Soils in Guizhou Province

作　　者：姚玉才[1] 邱志腾[1] 杨良觎 章明奎[1] YAO Yu-cai, QIU Zhi-teng, YANG Liang-yu, ZHANG Ming-kui(College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, Chin)

机构地区：[1]浙江大学环境与资源学院,浙江杭州310058

出　　处：《土壤通报》2018年第2期253-259,共7页Chinese Journal of Soil Science

基　　金：国家自然科学基金(41571207);国家科技基础性工作专项(2014FY10200)资助

摘　　要：依据贵州省第二次土壤普查获取的水稻土(水耕人为土)土种典型剖面信息,结合成土要素综合分析,选取了18个代表性水耕人为土样点,通过田间调查与室内测定分析,分析了其发生学性状,确定了其在中国土壤系统分类的高级单元类型,并讨论了其地理发生分类类型与系统分类类型之间的对应关系。结果表明,土壤质地以黏土和壤土为主,剖面分化较为明显,多数呈中性和酸性,全铁、全锰含量呈现从表层向底土增加的趋势,锰的游离度大于铁,二者的垂直分布较为相似,表现出明显的淀积特点,但锰的活化迁移比铁更加活跃。18个样点的土壤在地理发生分类分别隶属淹育、潴育、渗育和漂洗4个亚类,在系统分类中则分别隶属漂白铁渗、普通铁聚、复钙简育、普通简育和漂白简育5个亚类,地理发生分类与系统分类类型之间不是简单的一一对应关系,但也存在着优势的对比关系。To understand genetic characteristics and taxonomic types of paddy soils（anthrosols） in Guizhou Province,eighteen paddy soil profiles were collected from different sites of the province according to the information about distribution and properties of paddy soils obtained from the second soil survey of Guizhou Province and comprehensive analysis of soil formation factors of the province. The environmental conditions and soil properties of the soil profiles were analyzed in detail. The soils were classified according to the Chinese soil taxonomic classification, and the corresponding relationships between the soil types of Chinese genetic classification system and those of the Chinese soil taxonomic classification were discussed. The results showed that the differentiation of soil profiles was obvious.Their texture was dominated by clayey and loamy, and most of the soils were neutral and acidic. There was an increasing tendency in the total Fe and Mn from the topsoil to the bottom. The vertical distribution of total Fe and Mn were similar, which presented a distinct illuvial-deposition feature. The Mnd/Mnt was commonly higher than Fed/Fet,and remobilization of Mn in soils was more active than that of Fe. Eighteen soils were classified into submergenic,hydromorphic, percogenic and bleached paddy soil subgroups in Chinese soil genetic classification system, respectively.And they were also classified as albic Fe-leachi-Stagnic, typic Fe-accumuli-Stagnic, recalcatic Hapli-Stagnic, typic Hapli-Stagnic, and albic Hapli-Stagnic subgroups in Chinese soil taxonomy system. There was not a one-to-one correspondence of the soil types between Chinese soil genetic classification system and Chinese soil taxonomy system,but a comparative relationship for some dominant soils existed.

关 键 词：贵州 水耕人为土 系统分类 发生学性质 

分 类 号：S155.1[农业科学—土壤学]