高塬沟壑区董志塬沟头溯源侵蚀典型调查研究  

The Research on Erosional Types and Process of Head-cut on Dongzhiyuan of Loess Plateau

作　　者：陈绍宇[1] 许建民[2] 王文龙[1] 

机构地区：[1]中国科学院水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西杨凌712100 [2]杨凌职业技术学院,陕西杨凌712100

出　　处：《中国农学通报》2009年第9期258-263,共6页Chinese Agricultural Science Bulletin

基　　金：国家科技支撑计划"高塬沟壑区农果林多元综合治理模式研究与示范(2006BAD09B09)"资助

摘　　要：详细调查了董志塬地区的西峰区、宁县以及庆城县的沟头溯源侵蚀情况,并对近年来发生前进的沟头进行了详细的实地测量和地形地貌特点分析,对董志塬沟头溯源侵蚀整体情况做出概括。在此基础上将溯源侵蚀的发生类型划分:水力冲刷型、陷穴诱发型、裂缝诱发型和人为诱发型。针对每种类型进行了典型的实例分析。This paper investigated the situation of head-cuts in Xifeng area, Ning county and Qingcheng county on Dongzhiyuan. We carried out a detailed measurement and analysis of terrain characteristics on the gully heads, and summarized the overall situation of head-cuts on Dongzhiyuan. On this basis we summed up the genetic types of head-cuts that included flow-induced types, sink hole-induced types, fissure-induced types and human-induced types, and analyzed each type.

关 键 词：董志塬 溯源侵蚀 发生类型 

分 类 号：S151[农业科学—土壤学]