首页|元谋干热河谷冲沟形态特征及其成因

元谋干热河谷冲沟形态特征及其成因

扫码查看
原文链接
  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
  • 维普
元谋干热河谷冲沟极为发育,发达的冲沟网络不但蚕食耕地,还产生大量泥沙,并加剧面蚀的发育发展,加速土地退化进程.在干热河谷开展冲沟侵蚀研究对于该区经济的可持续发展及江河泥沙的控制意义深远.采用野外实地调查、文献资料综合分析的方法,对元谋干热河谷冲沟形态特征及其成因进行了研究.结果表明:1)元谋干热河谷冲沟具有“沟壁陡立、沟谷深壑、活跃沟头常呈上凸下凹状”等形态特征；2)岩层结构、气候降雨、土壤属性是导致该区冲沟发育的主要原因.在此基础上指出,未来干热河谷冲沟侵蚀研究重点应集中于冲沟形态监测方法、冲沟发育过程及机制、冲沟产沙效应及人类活动对冲沟发育的影响等方面.
Morphological characteristics and causes of gullies in Yuanmou Dry-hot Valley Region
In Yuanmou Dry-hot Valley Region gullies are well developed, which not only encroach cultivated lands, produce large amount of river sediments, but also aggravate the development of surface erosion and accelerate the processes of land degradation. It is of great importance to carry out research on gully erosion for controlling river sediments and the sustainable development of the local economy. Based on field investigation and comprehensive analysis of literature, this paper studied the morphological characteristics and causes of gullies. The results indicated that 1 ) Gullies in the study area are characterized with steep gully walls, deep beds, active gully heads with projected upper parts and concaved lower ones; and 2) The strata structures, climate and rainfall, soil properties are the major causes which result in the well-developed gullies in Yuanmou Dry-hot Valley Region. On the basis of that, the key orientations of future studies on gully erosion in Yuanmou Dry-hot Valley Region were proposed, which mainly focus on monitoring method of gullies' morphology, gully development process and its mechanism, effect of gully sediment and impacts of human activities on gully development ect.

morphological characteristic of gulliescontrolling factorskey orientations for future researchYuanmou Dry-hot Valley Region

杨丹、熊东红、翟娟、李佳佳、苏正安、董一帆

展开 >

中国科学院山地灾害与地表过程重点实验室,610041,成都

中国科学院水利部成都山地灾害与环境研究所,610041.成都

中国科学院研究生院,100049北京

成都信息工程学院,610225,成都

展开 >

冲沟形态特征 控制因素 重点研究方向 元谋干热河谷

中国科学院知识创新工程重要方向性项目国家自然科学基金中国科学院水利部成都山地灾害与环境研究所“青年百人团队”项目中国科学院“西部之光”人才培养计划西部博士资助项目

KZCXZ-EW-QN31740901009SDSQB-2011-01

2012

中国水土保持科学
中国水土保持学会

中国水土保持科学

CSTPCDCSCD
影响因子：0.902
ISSN：1672-3007
年,卷(期)：2012.10(1)
  • 39
  • 9