水资源保护Issue(3)：5-10,6.DOI:10.3880/j.issn.10046933.2015.03.002
河西走廊生态格局演变跟踪分析
T racking analyis s on changes of eoc logical pta tre ns in Heix Corridor Regoi n
张建永 1李扬 2赵文智 3史晓新1
作者信息
- 1. 水利部水利水电规划设计总院，北京 100120
- 2. 中国水利水电科学研究院，北京100044
- 3. 中国科学院寒区旱区环境与工程研究所，甘肃兰州730030
- 折叠
摘要
Abstract
Considering the characteristics of ecosystem and distribution of water resource, Hexi Corridor Region can be divided into four ecological regions, including Qilian Mountain headwater region, Hexi Corridor oasis region, tail-end-lake& wetland and Hexi Corridor desert region.Using RS and GIS technology, taking the years 1949, 1975,2000 and 2010 as the evaluation points, We tracking evaluated the structure, composition and ecological indicators of the four different ecological regions and analyzed the main characters of the changes of ecological patterns in Hexi Corridor.We concluded that the changes of ecological patterns in Hexi Corridor are taking place with utilization of water resource as its thread and rivers as its bounds.The water resource is re-distributed among artificial oasis and natural oasis, as well as the upper, middle and lower reaches of the river basin.Changing relationship among artificial oasis, dessert and natural oasis is formed, which determines the direction and process of the changes of ecological patterns.关键词
河西走廊/生态分区/特征演变/绿洲/荒漠/内陆河Key words
Hexi Corridor/ecological divisions/change patterns/oasis/desert/endorheic river分类
建筑与水利引用本文复制引用
张建永,李扬,赵文智,史晓新..河西走廊生态格局演变跟踪分析[J].水资源保护,2015,(3):5-10,6.
