[1]张传才,秦奋,汪永新,等.流域地貌形态多尺度三维分形量化及尺度效应——以砒砂岩区二老虎沟为例[J].水土保持研究,2016,23(01):278-283,288.
　ZHANG Chuancai,QIN Fen,WANG Yongxin,et al.Multi-Scale Quantification of Topographic Feature Using Three-Dimensional Fractal Model and Its Scale Effect in Watershed—A Case of the Two-Tiger Valley of Pisha Sandstone Area[J].Research of Soil and Water Conservation,2016,23(01):278-283,288.
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流域地貌形态多尺度三维分形量化及尺度效应——以砒砂岩区二老虎沟为例

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年01期 页码: 278-283,288 栏目: 出版日期: 2016-02-28
Title:
Multi-Scale Quantification of Topographic Feature Using Three-Dimensional Fractal Model and Its Scale Effect in Watershed—A Case of the Two-Tiger Valley of Pisha Sandstone Area
作者:
张传才1,2,3, 秦奋1,3, 汪永新1, 刘真真1, 陈云生1, 刘志丹1
1. 河南大学 环境与规划学院, 河南 开封 475004;
2. 安徽理工大学 测绘学院, 安徽 淮南 232001;
3. 河南大学 黄河中下游数字地理技术教育部重点实验室, 河南 开封 475004
Author(s):
ZHANG Chuancai1,2,3, QIN Fen1,3, WANG Yongxin1, LIU Zhenzhen1, CHEN Yunsheng1, LIU Zhidan1
1. College of Environment and Planning, He’nan University, Kaifeng, He’nan 475004, China;
2. College of Surveying and Mapping, Anhui University of Science and Technology, Huainan, Anhui 232001, China;
3. Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, Ministry of Education, He’nan University, Kaifeng, He’nan 475004, China
关键词:
地形量化; 砒砂岩; 地貌三维分形; 尺度效应
Keywords:
quantifying topographical character; Pisha sandstone; topographical three-dimension fractal; scale effect of landform
分类号:
P931.6
摘要:
流域地貌形态的科学量化是地貌学研究和区域尺度土壤侵蚀模型研究中的热点问题之一。针对目前地貌形态分形量化模型中存在的地形模拟方法和模型结构不合理问题，基于GIS技术和分形理论改进了地貌形态分形量化模型，并使用无人机高分辨率DEM数据对砒砂岩区二老虎沟流域进行了多尺度地貌形态量化，进而研究了该区地貌形态三维分形量化的尺度效应。研究发现：（1）随着尺度的降低，该区三维分形维数呈线性降低趋势，即地形复杂度呈线性降低趋势；（2）砒砂岩区二老虎沟流域在10 m尺度地形复杂度已大大降低；（3）根据多指标量化结果分析，地貌形态量化指标分为两类：地形复杂度指标和地形起伏度指标，前者具有明显的尺度效应，后者尺度效应不明显。
Abstract:
Scientific quantification of topographic feature is one of the key issues in geomorphology and development of erosion model. In view of the existing problems on terrain simulation, geomorphology quantification model structure, geomorphology three-dimensional fractal model is optimized based on GIS and fractal theory, and topographic feature for Two-tiger valley in Pisha sandstone area is quantified based on multi-scale UAV DEM data and the fractal model, and scale effect of three-dimensional dimension on the area is discussed. The research found that: (1) as the topographic scale is reduced, three-dimensional fractal dimension decreases linearly, which means that terrain complexity decreases linearly; (2) terrain complexity under 10 m scale of Two-tiger valley is far less in Pisha sandstone area; (3) according to analysis on terrain quantification results based on multi index, terrain quantification indices can be divided into two types: terrain complexity index and terrain undulation index. The terrain complexity index has scale effect, and the terrain undulation index has no scale effect.

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备注/Memo

收稿日期:2015-02-08;改回日期:2015-03-06。
基金项目:国家科技支撑计划项目（2013BAC05B01）；国家自然科学基金项目（41401457）
作者简介:张传才(1979-),男,山东梁山人,博士研究生,讲师,主要从事GIS与土壤侵蚀模型集成开发、虚拟地理环境研究。E-mail:zccai1205@163.com

更新日期/Last Update: 1900-01-01