沈阳农业大学学报2011，Vol.42Issue(4)：500-503,4.
基于GIS的小流域地貌分形维数测定方法研究
Determination of Watershed Landscape Fractal Dimension Based on GIS
摘要
Abstract
Fractal theory provides a new idea for complex landforms of quantitative research. Based on the basic theory of fractal and CIS technology, take Quanhe watershed which locates mountainous area in eastern Liaoning as the study area, use 1:10000 topographic map as data sources, analyse and calculate the landscape fractal dimension through the creation of digital elevation model and scales - area method. The results showed that the landform of Quanhe watershed had good fractal feature in the scale-free interval, with the wantershed landscape fractal dimension 1.9539. The watershed landscape fractal dimension could characterize the complex topograpy of watershed. Fractal dimension was important as an indicater which described the basin topography of the composite for the establishment of watershed rainfall and sediment yield model.关键词
DEM/分形维数/地貌形态/小流域Key words
DEM(digital elevation model)/ fractal dimension/ landform/ watershed分类
信息技术与安全科学引用本文复制引用
王瑄,陈雯静,徐璐..基于GIS的小流域地貌分形维数测定方法研究[J].沈阳农业大学学报,2011,42(4):500-503,4.基金项目
辽宁省自然科学基金项目(20062110) （20062110）
辽宁省教育厅项目(L2010496) （L2010496）
