川西名山县阶地漂洗土壤分类及参比研究  

CLASSIFICATION AND REFERENCE OF THE BLEACHED SOIL ON TERRACES OF MINGSHAN,WEST SICHUAN

作　　者：袁大刚[1] 符伟[1] 王家宽[1] 蒲光兰[1] 吴德勇[1] 唐明军[2] 

机构地区：[1]四川农业大学资源环境学院,四川雅安625014 [2]四川省达县农业局大树镇农业技术服务站,四川达县635014

出　　处：《土壤学报》2012年第2期230-236,共7页Acta Pedologica Sinica

基　　金：国家自然科学基金项目(40801079);四川省科技富民强县重点项目(07NG001-020)资助

摘　　要：经历了强烈漂洗作用的土壤是一类形态独特的土壤,在分类系统中具有重要地位。本文在四川西部漂洗土壤集中分布的名山县第二至五级阶地上对这类土壤进行了野外调查采样和室内测试分析,按中国土壤系统分类的原理和方法,通过水耕表层、水耕氧化还原层、漂白层、人为滞水土壤水分状况、氧化还原特征等诊断层和诊断特性的确定及按顺序检索的方法,将其归入人为土纲,水耕人为土亚纲,简育水耕人为土和铁聚水耕人为土土类,漂白简育水耕人为土、漂白铁聚水耕人为土和普通铁聚水耕人为土亚类;同时按发生分类系统进行了类型划分,它们均归入漂洗水稻土亚类。比较而言,系统分类能更精确地区别土壤分异,有利于土壤精准化管理,但仍需进一步修订完善。Intensely leached soil is a unique type of soil and has an important position in the soil classification system. For its classification, bleached soils on the second, third, fourth and fifth terraces of Mingshan County, West Siehuan where they are widely distributed, were investigated and sampled in field and analyzed in laboratory. Following the principle and methods of Chinese Soil Taxonomy （ CST）, their diagnostic horizons were identified and their diagnostic characteristics, such as anthrostagic epipedon, hydragric horizon, albic horizon, anthrostagnie moisture regime, redoxic features, determined ; and by means of sequential searching, they were sorted into Anthrosols in order, Stagnic Anthrosols in suborder, Hapli-Stagnic Anthrosols and Fe-accumulic-Stagnic Anthrosols in group, Albic Hapli-Stagnic Anthrosols, Albic Fe-accumulic-Stagnic Anthrosols, and Typic Fe-accumulic-Stagnic Anthrosols in subgroup, and according to the Genetic Soil Classification of China （GSCC）, they fell into the subgroup of Bleached Paddy Soil. Comparatively speaking, CST can more accurately discriminate soils, which favors standardized management of soils. However, CST still needs to be further perfected.

关 键 词：阶地 漂洗作用 漂白层 铁渗淋亚层 中国土壤系统分类 中国土壤发生分类 

分 类 号：S155.1[农业科学—土壤学]