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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (9): 258-263.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

高塬沟壑区董志塬沟头溯源侵蚀典型调查研究

陈绍宇,许建民,王文龙   

  • 收稿日期:2009-02-27 修回日期:2009-03-19 出版日期:2009-05-05 发布日期:2009-05-05

The research on erosional types and process of head-cut on Dongzhiyuan of Loess Plateau

CHEN Shao-Yu ,   

  • Received:2009-02-27 Revised:2009-03-19 Online:2009-05-05 Published:2009-05-05

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846

摘要： 摘要：本研究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作出概括。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。

关键词: 花椰菜, 花椰菜, 平衡施肥, 氮肥分期施用比例, 效应函数

Abstract: 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 include flow-induced types, sink hole-induced types, fissure-induced types and human-induced types, and analyzed each type.