砒砂岩地区典型小流域支干沟道特征要素关系初步分析  

An Analysis of Relation between the Characteristic Elements of Main Channels in Typical Small Watershed of Soft Rock Area

作　　者：李怀恩[1] 庞敏[1,2] 谢毅文[3] 杨方社[4] 

机构地区：[1]西安理工大学西北水资源与环境生态教育部重点实验室,陕西西安710048 [2]南水北调中线干线工程建设管理局,北京100038 [3]东莞理工学院,广东东莞523808 [4]西北大学,陕西西安710069

出　　处：《西安理工大学学报》2010年第1期77-80,共4页Journal of Xi'an University of Technology

基　　金：国家自然科学基金资助项目(50979090)

摘　　要：为了研究砒砂岩地区沟道特征要素与侵蚀特性,于2005年对内蒙古鄂尔多斯市东一支沟内支干沟道的沟长、沟深和沟底宽等特征要素进行了详细测量。通过对实测资料的分析,发现流域面积是影响支干沟道各特征要素的主要因素,并分别建立了沟道长度、平均沟深、平均沟底宽与流域面积之间的关系。验证结果表明,这些关系可应用于邻近相似小流域支干沟道特征要素的计算。In order to study water loss and soil erosion in the soft rock area,the characteristic elements of main channels are measured in Dongyizhigou small watershed Ordos city in Inner Mongulia in 2005.Based on the metrical data,the analysis shows that the watershed area is a key factor which influences the characteristic elements of main channel.And relations between ditch length,ditch depth,as well as ditch bed width and watershed area have been established respectively.The tested results show that these relations can be applied to the calculation of the characteristic elements of main channels for the adjacent and similar small watershed.

关 键 词：砒砂岩 小流域 支干沟道 特征要素 

分 类 号：P642.24[天文地球—工程地质学] P512.2[天文地球—地质矿产勘探]