【摘要】：為了分析河南省境內(nèi)丹江口水庫水源區(qū)的地形地貌特征,運用ARCGIS10.0軟件和分形理論對該區(qū)域的ASTER GDEM數(shù)據(jù)進行提取,并將水系劃分成11個子流域,應(yīng)用網(wǎng)格法和河長比分叉比法分別計算了子流域和總水系的分維數(shù),結(jié)果為:研究區(qū)各子流域的分維值相差不大,在0.998 6~1.057 6之間,總水系分維值為1.401 1,表明該水系在發(fā)育過程中存在著分形,流域地貌處于侵蝕發(fā)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.
【作者單位】： 黃河水文水資源科學研究院;河南省水文水資源局;河南省水土保持監(jiān)督監(jiān)測總站;鄭州大學水利與環(huán)境學院;華中農(nóng)業(yè)大學資源與環(huán)境學院;
【基金】：河南省科技攻關(guān)計劃(GG201412)
【分類號】：P208;TU991.11

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