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机构地区:[1]浙江大学,浙江杭州310058 [2]浙江省农业科学院,浙江杭州310021
出 处:《土壤通报》2013年第4期769-775,共7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:水耕人为土是在水耕条件下形成的具有人为诊断层的独特土壤类型。对采自福建省北部的13个水耕人为土典型剖面进行了土壤形成条件调查和土壤理化性状鉴定,明确了其发生学特性,并依据《中国土壤系统分类检索(第三版)》,鉴定了其诊断层和诊断特性,确定了研究土壤剖面在中国土壤系统分类中的归属。鉴定出的诊断层主要有水耕表层、水耕氧化还原层、漂白层、黏化层;诊断特性主要有人为滞水土壤水分状况、潜育特征、盐积现象、氧化还原特性。13个剖面可分别归属为弱盐潜育水耕人为土、普通潜育水耕人为土、漂白铁聚水耕人为土、普通铁聚水耕人为土、普通简育水耕人为土5个亚类。Stagnic anthrosols were formed under the anthrostagnic condition, and were a unique group of soils with anthropic diagnostic horizon. To understand the pedogenesis and classification of the stagnic anthrosols in northern Fujian, thirteen representative soil profiles were collected. Based on the investigation of soil formation conditions and analysis of physical-chemical properties, the genetic properties, diagnostic properties and diagnostic horizons of the soils were characterized, and the categories of soils were identified according the keys to Chinese Soil Taxonomy (3rd edition). Four soil diagnostic horizons, including Anthrostagnic epipedon, Hydragric horizon, Albic horizon and Argic horizon, were identified from the soils. Five diagnostic characteristics, including Anthrostagnic moisture regime, Gleyic features, Salic ecidence and Redoxic features, were found in the soils. The thirteen soil profiles could be classified into Pas-Gen-Stagnic Anthrosols, Typ-Gen- Stagnic Anthrosols, Alb-Fec-Stagnic Anthrosols, Typ-Fec-Stagnic Anthrosols and Typ-Hap-Stagnic Anthrosols.
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