基于DEM的丹江口水库水源区水系分形特征研究
发布时间：2018-11-04 17:12
【摘要】：为了分析河南省境内丹江口水库水源区的地形地貌特征,运用ARCGIS10.0软件和分形理论对该区域的ASTER GDEM数据进行提取,并将水系划分成11个子流域,应用网格法和河长比分叉比法分别计算了子流域和总水系的分维数,结果为:研究区各子流域的分维值相差不大,在0.998 6~1.057 6之间,总水系分维值为1.401 1,表明该水系在发育过程中存在着分形,流域地貌处于侵蚀发育的幼年期。
[Abstract]:In order to analyze the topographic and geomorphological characteristics of Danjiangkou reservoir water source area in Henan Province, the ASTER GDEM data of this area are extracted by using ARCGIS10.0 software and fractal theory, and the water system is divided into 11 subbasins. The fractal dimensions of subbasin and total water system were calculated by grid method and river length ratio method respectively. The results showed that the fractal dimension of each subbasin in the studied area was not different, from 0.998 to 1.0576, and the fractal dimension of total water system was 1.401 1. It is concluded that fractal exists during the development of the drainage system, and the watershed geomorphology is in the infancy of erosion and development.
【作者单位】： 黄河水文水资源科学研究院;河南省水文水资源局;河南省水土保持监督监测总站;郑州大学水利与环境学院;华中农业大学资源与环境学院;
【基金】：河南省科技攻关计划(GG201412)
【分类号】：P208;TU991.11
本文编号：2310574
[Abstract]:In order to analyze the topographic and geomorphological characteristics of Danjiangkou reservoir water source area in Henan Province, the ASTER GDEM data of this area are extracted by using ARCGIS10.0 software and fractal theory, and the water system is divided into 11 subbasins. The fractal dimensions of subbasin and total water system were calculated by grid method and river length ratio method respectively. The results showed that the fractal dimension of each subbasin in the studied area was not different, from 0.998 to 1.0576, and the fractal dimension of total water system was 1.401 1. It is concluded that fractal exists during the development of the drainage system, and the watershed geomorphology is in the infancy of erosion and development.
【作者单位】： 黄河水文水资源科学研究院;河南省水文水资源局;河南省水土保持监督监测总站;郑州大学水利与环境学院;华中农业大学资源与环境学院;
【基金】：河南省科技攻关计划(GG201412)
【分类号】：P208;TU991.11
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