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| 三峡库区东河河流等级及生态结构分析 | |
| 引用本文： | 熊森,刘红,王强,黎璇 .三峡库区东河河流等级及生态结构分析[J].重庆师范大学学报(自然科学版),2011,28(5):29-32. |
| 作者姓名： | 熊森 刘红 王强 黎璇 |
| 作者单位： | 1. 重庆市开县澎溪河湿地自然保护区管理局,重庆开县,405400 2. 重庆大学资源及环境科学学院,重庆,400030 3. 重庆大学资源及环境科学学院,重庆400030;重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆400030 4. 中煤国际工程集团重庆设计研究院,重庆,400016 |
| 基金项目： | 国家自然科学基金(No.50749045); 重庆市科委科技攻关项目(No.CSTC2009AB1079) |
| 摘 要： | 利用GIS技术进行河流等级结构划分,研究了三峡库区东河流域河流的等级体系.将整个东河流域河溪分为6级,并在此基础上研究了不同等级河溪与海拔高程和坡度的关系.研究发现,河溪在由低等级向高等级变化时,其空间分布范围逐渐由坡度大、海拔高向坡度小、低海拔的平缓地带过渡；低等级溪流周围植被生长状况好于高等级溪流周围植被.东河1、... |
| 关 键 词： | 河流 生态系统 三峡库区 东河 河流分级 |
Analysis on River Hierarchy and Ecological Structure of Donghe River in Three Gorges Reservoir Area |
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| XIONG Sen,LIU Hong,WANG Qiang,LI Xuan .Analysis on River Hierarchy and Ecological Structure of Donghe River in Three Gorges Reservoir Area [J].Journal of Chongqing Normal University:Natural Science Edition,2011,28(5):29-32. |
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| Authors: | XIONG Sen LIU Hong WANG Qiang LI Xuan |
| Institution: | XIONG Sen1,LIU Hong2,WANG Qiang2,3,LI Xuan4(1.Pengxi River Wetland Nature Reserve Management Bureau,Kaixian Chongqing 405400,2.College of Resource and Environmental Science,Chongqing University,Chongqing 400030,3.Key Laboratory of Southwest Resource Exploitation and Environmental Disaster Controlling Project of Educational Ministry,4.Sino-coal International Engineer Group,Chongqing Design &Research,Institute,Chongqing 400016,China) |
| Abstract: | Stream hierarchy of Dong be River was analyed by using GIS technology.The total watershed of Dong he River was divided into six grades.Relationship between river grade and elevation and slope was researched.The result indicated that river with higher grade distributed in those areas with smaller slope and lower elevation.Vegetation in watershed of lower grade stream is better than that in watershed of higher grade.The first and second grade streams were influenced by natural disturbance and maintained high ... |
| Keywords: | stream ecosystem Three Gorges Reservoir Area Donghe River river hierarchy |
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