泾河流域水系分维特征及其生态意义  

FRACTAL DIMENSIONS OF JINGHE RIVER CHANNELS AND ECOLOGICAL SIGNIFICANCE

作　　者：王秀春[1] 吴姗[1] 毕晓丽[1] 葛剑平[1] 

机构地区：[1]北京师范大学生命科学学院,北京100875

出　　处：《北京师范大学学报（自然科学版）》2004年第3期364-368,共5页Journal of Beijing Normal University(Natural Science)

基　　金：国家"九七三"计划资助项目(2 0 0 2CB1115);教育部博士点基金资助项目(2 0 0 0 0 0 2716);国家自然科学基金资助项目(3 0 2 70 2 5 4)

摘　　要：应用地理信息系统 (GIS)提取河流信息 ,并在此基础上改进了传统的计盒方法 ,将其应用于泾河流域水系分形分析 .同时探讨了分维数同流域地形、地貌、侵蚀程度、植被因子之间的相互关系 .Using geographic information system (GIS), the information of river channels can be picked up. Based on this work, the traditional box counting method is improved and applied to the fractal analysis of Jinghe river channels. Moreover the relations are discussed between the dimension of river channels and topography , physiognomy, erosion and vegetation respectively .The fractal analysis could bring forward a new method for the study of watershed hydrology.

关 键 词：地理信息系统 泾河流域水系 分形 分维数 

分 类 号：P333.6[天文地球—水文科学]