| 基于DEM 的重庆长江流域水系分维估算 |
| |
| 引用本文： | 江滔,武伟,刘洪斌.基于DEM 的重庆长江流域水系分维估算[J].中国农学通报,2010,26(15):365-368. |
| |
| 作者姓名： | 江滔 武伟 刘洪斌 |
| |
| 作者单位： | 1. 西南大学资源环境学院,重庆,400716
2. 西南大学计算机与信息科学学院,重庆,400716 |
| |
| 摘 要： | 摘要：基于数字高程模型，本文利用ArcGIS9.3的水文分析模块，根据不同的集水面积阈值, 提取了重庆长江流域河网信息，通过网格法计算了相应的水系分维。根据集水面积阈值与水系分维的相互关系, 确定该流域水系分维值为1. 036，经计算得到的河网特征以及流域信息与实际河流水系特征及流域信息基本吻合。
|
| 关 键 词： | 菠萝果实 菠萝果实 糖 酸 维生素C |
| 收稿时间： | 2010/1/11 0:00:00 |
| 修稿时间： | 2010/5/10 0:00:00 |
Calculation of the Fractal Dimension in Long River Basin of Chongqing based on DEM |
| |
| Jiang Tao,Wu Wei,Liu Hongbin.Calculation of the Fractal Dimension in Long River Basin of Chongqing based on DEM[J].Chinese Agricultural Science Bulletin,2010,26(15):365-368. |
| |
| Authors: | Jiang Tao Wu Wei Liu Hongbin |
| |
| Institution: | 1 College of Resources and Environments in Southwest China University,Chongqing 400716;2 The Faculty of Computer and Information Science in Southwest China University,Chongqing 400716) |
| |
| Abstract: | Based on DEM,the information of river networks of Changjiang River Basin in Chongqing is extracted,according to the different catchment threshold values and using the hydrologic model by ArcGIS9.3.the fractal dimension of the river network is calculated by the grid method.Based on the relationship between different catchment threshold values and fractal dimension of Changjiang River Basin basin,fractal dimension value of Changjiang River Basin is 1.036,The channel network extraction from DEM was basically consistent with the factual river system. |
| |
| Keywords: | fractal dimension catchment threshold values Changjiang river |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国农学通报》浏览原始摘要信息 |
| 点击此处可从《中国农学通报》下载免费的PDF全文 |
|
