丹江中游河谷黄土母质发育土壤的诊断特征及其系统分类研究  

Diagnostic Characteristics of Soil Developed from Loess and its Taxonomic Classification in the Middle Danjiang River Valley

作　　者：王海燕[1] 庞奖励[1] 黄春长[1] 周亚利[1] 查小春[1] 张文桐[1] 杨丹[1] 

机构地区：[1]陕西师范大学旅游与环境学院,地理学国家级实验教学示范中心,陕西西安710119

出　　处：《土壤通报》2016年第6期1281-1285,共5页Chinese Journal of Soil Science

基　　金：国家自然科学基金项目(41271108,41371029,41471071);国家社会科学基金(14BZS070);中央高校基本科研费(GK201601006)资助

摘　　要：选择位于河南省南阳市淅川县荆紫关镇龙泉村丹江中游河谷黄土母质发育的土壤剖面作为研究对象,对其剖面构型及其色度、元素、粒度等理化性质进行了分析。结果表明,丹江中游河谷黄土母质发育的土壤具有Ap-Bp-Bt-Bw剖面形态特征;在剖面40-220 cm深度发生明显的黏粒富集,具有黏化层（Bt）的诊断特征;风化成壤强度达到中等风化强度阶段。剖面具有热性土壤温度状况和湿润土壤水分状况,在中国土壤系统分类中可划为耕淀简育湿润淋溶土。To elucidate diagnostic characteristics of soils derived from loess and their significance in soil classification, a soil profile was selected, surveyed in detail, and then sampled systematically in Longquan Village of Xichuan, Henan Province, the middle reaches of Danjiang River. The soil profile structure, chroma characteristics, particle-size distribution and major elements were analyzed in laboratory. Results showed as follows： the soil profile structure in Danjiang River Valley was Ap-Bp-Bt-Bw. Argic horizon appeared at 40 - 220 cm （Bt）. Soil profile was belonged to the middle chemical weathering process. The soil profile had an udic soil moisture regime and a thermie soil temperature regime. Therefore, the soil was sorted as Ageic-Hapli-Udic Argosols.

关 键 词：系统分类 黏化诊断层 耕淀简育湿润淋溶土 丹江中游河谷 

分 类 号：P904[天文地球—自然地理学]