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干旱区地理 ›› 2003, Vol. 26 ›› Issue (4): 355-360.doi: 10.13826/j.cnki.cn65-1103/x.2003.04.011

• 自然地理与气候变化 • 上一篇    下一篇

元代以来黄土塬区沟谷发育与土壤侵蚀

桑广书1, 甘枝茂2, 岳大鹏2   

  1. 1 浙江师范大学旅游与资源管理学院,金华 321004;
    2 陕西师范大学旅游与环境学院,西安 710062
  • 收稿日期:2003-03-10 修回日期:2003-10-12 出版日期:2003-04-25 发布日期:2025-12-22
  • 作者简介:桑广书(1963–）,男,陕西陇县人,博士,副教授。主要研究方向为地貌学与土壤侵蚀,旅游地理学。E-mail：sgs63@163.com
  • 基金资助:
    国家自然科学基金项目(50279019）

Gully Development and Soil Erosion in the Loess Yuan Region since Yuan Dynasty

SANG Guang-shu1, GAN Zhi-mao2, YUE Da-peng2   

  1. 1 College of Tourism ＆ Resource Management,Zhejiang Normal University,Jinhua 321004;
    2 College of Tourism ＆ Environment Science,Shaanxi Normal University,Xi'an 710062,P.R.China;
  • Received:2003-03-10 Revised:2003-10-12 Published:2003-04-25 Online:2025-12-22

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摘要： 以洛川旧县镇南沟小流域为研究对象,用实地考察和史料考证相结合的方法,恢复了元代(1267年）以来洛川黄土塬区沟谷发育与土壤侵蚀过程,计算出了不同时段沟谷发育速度、土壤侵蚀强度,分析了黄土塬区沟谷形态的演变。自元代以来黄土塬区沟谷发育、土壤侵蚀呈加剧态势,其变化一方面与降水量变化关系密切,降水量较丰富时沟谷发育、土壤侵蚀较强;另一方面人为加速侵蚀与自然侵蚀相叠加是近现代沟谷发育、土壤侵蚀剧烈的主要原因。黄土塬区沟谷形态由巷形谷、V形谷向U形谷演变,沟头段巷形谷和上游段V形谷是土壤侵蚀与治理的重点。

关键词: 黄土塬, 沟谷发育, 土壤侵蚀, 元代

Abstract: Gully is the main region of soil erosion,in the meantime,it is also the main expression of loess landform evolution in the Loess Yuan Region.Taking Jiuxian Town as an example,this paper recovers the processes of gully development and soil erosion of the Loess Yuan Region in Luochuan County since Yuan Dynasty (A.D. 1267）.Both the on-the-spot investigation and the textual research method are applied.The paper calculates the gully development speed and the soil erosion intensity in different historic periods.The evolution processes of gully in the Loess Yuan Region are also analyzed.Since Yuan Dynasty,gully development speed and soil erosion intensity have the trend of aggravation.In the period when precipitation is comparatively rich,the gully development speed and soil erosion intensity are comparatively strong.It is the principal reason why natural erosion and man-made erosion lead to gully development and soil erosion violently since modern and contemporary age. Landform evolution process of gully is from the bystreet-shaped then to the V-shaped,finally to the U-shaped. The bystreet-shaped and V-shaped gullies are the key sections of soil erosion and water conservation in the Loess Yuan Region.

Key words: the Loess Yuan Region, gully development, soil erosion, Yuan Dynasty

中图分类号: 

  • P931.6