关于塿土分类地位的讨论  

The discussion on Lou soil position in soil classification

作　　者：常庆瑞[1] 阎湘[2] 雷梅[3] 高亚军[1] 崔英[1] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨陵712100 [2]中国农业科学院土壤肥料研究所,北京100081 [3]中国科学院地理研究所,北京100101

出　　处：《西北农林科技大学学报（自然科学版）》2001年第3期48-52,共5页Journal of Northwest A&F University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(49941005)

摘　　要：在野外考察和室内分析的基础上，针对当前塿土分类中存在的主要问题，探讨了人为活动对土壤形成发育的影响。认为　土由于人工熟化培肥过程，形成了巨厚的人工覆盖层和粘化层，产生二次复钙现象，土壤风化发育处于脱盐基的硅铝化阶段，幼年性特征明显。最后提出塿土作为独立土类的依据与标准，即若有人工覆盖层，且厚度超过５０ｃｍ，应作为一种新的土类从原土壤类型中划分出来，进行单独分类；否则，仍应归属原土类──褐土。Based on field surveying and indoor analysing,dealing with principal problems of the classification in Lou soil at present,the paper disscussed the effect of anthropogenic activity on the soil weathering and development. Because of artificial tilth cultivation and fertility processing,Lou soil has formed immense thick artifical mulch and argic horizon, produced twice recalcic evidence, soil weathering development is situates in desalting siallitic stage with childhood characters. Therefore,Lou soil can be serverd as foundation and criterion for soil grouping. That is,if the thickness of artifical mulch is over 50 cm,it should be serve as a new soil group from original soil type,and should be classified alone,otherwise,it should belong to the original soil group-cinnamon soil.

关 键 词：LOU土 褐土 发生特性 分类地位 土壤有机质 土壤矿物质 土壤化学性质 淋溶作用 

分 类 号：S155.23[农业科学—土壤学]