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| 元谋干热河谷冲沟形态特征及其成因 | |
| 引用本文： | 杨丹,熊东红,翟娟,李佳佳,苏正安,董一帆.元谋干热河谷冲沟形态特征及其成因[J].中国水土保持科学,2012,10(1):38-45. |
| 作者姓名： | 杨丹 熊东红 翟娟 李佳佳 苏正安 董一帆 |
| 作者单位： | 1. 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 2. 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 3. 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;成都信息工程学院,610225,成都 |
| 基金项目： | 中国科学院知识创新工程重要方向项目“干热河谷冲沟溯源侵蚀的过程机制及产沙效应”（KZCXZ-EW-QN317）;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＂干热河谷冲沟侵蚀动力过程及其形态演变＂（SDSQB-2011-01）;中国科学院＂西部之光＂人才培养计划＂西部博士资助项目＂＂干热河谷冲沟裂隙发育对沟壁崩塌的影响机理＂; 国家自然科学基金“干热河谷冲沟沟壁裂隙发育的土水作用机制及其对沟壁侵蚀的影响机理”（40901009）; |
| 摘 要： | 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. |
| 关 键 词： | 冲沟形态特征 控制因素 重点研究方向 元谋干热河谷 |
Morphological characteristics and causes of gullies in Yuanmou Dry-hot Valley Region |
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| Yang Dan , Xiong Donghong , Zhai Juan , Li Jiajia , Su Zheng' an , Dong Yifan.Morphological characteristics and causes of gullies in Yuanmou Dry-hot Valley Region[J].Science of Soil and Water Conservation,2012,10(1):38-45. | |
| Authors: | Yang Dan Xiong Donghong Zhai Juan Li Jiajia Su Zheng' an Dong Yifan |
| Institution: | 1.Key Laboratory of Mountain Surface Process ＆ Hazards,Chinese Academy of Sciences,610041,Chengdu; 2.Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,610041,Chengdu; 3.Graduate University of Chinese Academy of Sciences,100049,Beijing;4.Chengdu University of Information Technology,610225,Chengdu： China) |
| Abstract: | 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. |
| Keywords: | morphological characteristic of gullies controlling factors key orientations for future research Yuanmou Dry-hot Valley Region |
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