CHANG Yue-ming,LEI Jun-yi,LI Yong-xiang,et al.Study on the Road Erosion Characteristics and the Effect Factors in Semiarid Hilly Region—Take the Southeast of Siziwang County, Inner Mongolia as an Example[J].Research of Soil and Water Conservation,2014,21(05):116-121.
半干旱丘陵地区乡村道路侵蚀特点和影响因素研究——以内蒙古四子王旗东南部为例
- Title:
- Study on the Road Erosion Characteristics and the Effect Factors in Semiarid Hilly Region—Take the Southeast of Siziwang County, Inner Mongolia as an Example
- Keywords:
- semiarid; country roads; erosion characteristics; effect factors
- 分类号:
- S157.1
- 摘要:
- 内蒙古北部半干旱丘陵低山地区的乡村道路，侵蚀严重，使运输受阻，经常被迫改道，占用耕地，严重影响了当地农村的发展。以阴山北麓四子王旗的农耕地区为例，通过大量实地考察，研究道路侵蚀特点，并从自然和人为两方面研究道路遭受侵蚀的原因，分析道路侵蚀的发生机理。结果表明：乡村土质道路侵蚀的主要影响因素是路面坡度和降水强度，人类的使用方式也直接影响路面侵蚀。研究区位于坡面上和谷地中汇水处的土质道路普遍发育不同程度的侵蚀；夏季发生的有限的几次强降水是研究区道路遭受侵蚀的重要原因；位于较大坡度坡面上和谷地中汇水处的道路侵蚀最为严重；两边不等高和壤质土的路面都易遭受侵蚀；人类使用的季节性和维护的缺失加剧了道路侵蚀。
- Abstract:
- The county roads of low mountain and hilly regions in semiarid area of Inner Mongolia North, are seriously eroded, which impact the local transportation. The roads are often forced to change their courses and occupy cultivation due to erosion, which seriously affects the development of local countries. This article took agricultural area as an example in Siziwang County which lies the foot of the North Yinshan Mountain, through a great deal of investigation on the spot, erosion characteristic and the road erosion causes were studied from two aspects of natural and human, the occurrence mechanism of the roads erosion was analyzed. The results show that the main factors affecting the soil road erosion of the rural are the road surface slope and rainfall intensity, the using mode of human beings also directly affects the road erosion. The soil roads universally develop different levels of erosion, which lies on the slope and the catchment in the valley; the limited several events of strong precipitation which happens in summer are the important reason for the road erosion in the study area. The roads are seriously eroded which lie the high slope surface and the catchment in the valley. The roads surfaces on both sides of unequal height and loamy soil are all easily eroded. The seasonal human using and the lack of maintenance made the roads erosion serious.
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备注/Memo
收稿日期:2013-10-14;改回日期:2013-12-18。
基金项目:内蒙古自然科学基金项目“内蒙古半干旱丘陵低山地区乡村道路侵蚀机理与防治对策研究”（编号2010MS0615）
作者简介:常月明(1968-),男,内蒙古四子王旗人,硕士,副教授,主要从事土壤侵蚀和GIS应用研究。E-mail:1514896332@qq.com