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| 基于GIS的流域地貌形态分形盒维数测定方法研究 | |
| 引用本文： | 崔灵周,肖学年,李占斌.基于GIS的流域地貌形态分形盒维数测定方法研究[J].水土保持通报,2004,24(2):38-40. |
| 作者姓名： | 崔灵周 肖学年 李占斌 |
| 作者单位： | 1. 温州师范学院,生命与环境科学学院,浙江,温州,325027;西安理工大学,水利水电学院,陕西,西安,710048 2. 南京大学,城市与资源学系,江苏,南京,210093 3. 西安理工大学,水利水电学院,陕西,西安,710048;中国科学院水利部,水土保持研究所,陕西,杨凌,712100 |
| 基金项目： | 国家自然科学基金(40301026)，中科院知识创新工程重大项目(KZCX1-10-04)，国家博士后科学基金(2003033518)，温州师范学院重点基金(2002Z28) |
| 摘 要： | 流域地貌形态分形维数测定是目前地貌分形研究的薄弱环节,对于流域水土流失预报模型中地貌因子量化具有重要科学意义。依据分形盒维数测定原理,结合流域地貌的复杂三维立体特性,提出了以地形等高线为基本数据源,以GIS技术作为主要实现手段的流域地貌形态分形盒维数测定方法,编制出了相关测算程序,并以岔巴沟流域为例进行了实证研究。结果表明,该方法快速、准确、数据可靠,可实现不同尺度流域地貌形态分形盒维数的测定。 |
| 关 键 词： | 流域地貌 分形盒维数 GIS技术 测定方法 |
| 文章编号： | 1000-288X(2004)02-0038-03 |
| 收稿时间： | 2003/7/18 0:00:00 |
| 修稿时间： | 2003年7月18日 |
GIS-based Approach for Measuring the Fractal Box Dimension of Watershed Topography |
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| CUI Ling-zhou,XIAO Xue-nian and LI Zhan-bin.GIS-based Approach for Measuring the Fractal Box Dimension of Watershed Topography[J].Bulletin of Soil and Water Conservation,2004,24(2):38-40. | |
| Authors: | CUI Ling-zhou XIAO Xue-nian and LI Zhan-bin |
| Institution: | CUI Ling-zhou~ |
| Abstract: | The fractal dimension measure of watershed topography is the unsubstantial part of topography fractal study, and it is very important for the prediction model of soil and water loss in small watershed. Based on the principle of measuring the fractal box dimension and the character of watershed topography, the approach for measuring the fractal dimension of watershed topography is put forward by the technique of GIS, whose data is from contour line. We operated demonstration research by taking Chabagou watershed as an example. The results show that this approach is fast, exact, credible and can get the fractal box dimension of watershed topography of different scope. |
| Keywords: | watershed topography fractal box dimensiuon technique of GIS measure approach |
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