干旱区生态环境知识资源中心(Arid): 泾河典型流域水沙变化及其景观格局分析

Arid

	泾河典型流域水沙变化及其景观格局分析
其他题名	Analysis of Runoff and Sediment Variation and Landscape Pattern of Typical Watersheds in Jinghe Basin
	王兮之 1; 索安宁 2; 洪军 2; 毕晓丽 2; 葛剑平 2
ISSN	1005-3409
出版年	2006
卷号	13 期号:4 页码:260-263
中文摘要	以黄河中游泾河流域的3个子流域为研究对象，借助GIS和RS技术与基本的水沙数据，分析各子流域水沙变化特点与土地覆被空间格局特征。结果表明：流域北部的环江上游、合水川与讷河的径流量和输沙量以及土地覆被空间格局分布差异显著；30多年来环江上游的径流量增加了60％而输沙量却增加了1倍多，讷河的径流量减少了约40％而输沙量却减少到1／5，合水川的径流量基本保持不变而输沙量略有增加；环江上游只有6种土地覆被类型以低密度草地和半荒漠草地为主，讷河有9种土地覆被类型以林地、农田和高密度草地为主，合水川有7种土地覆被类型以林地和郁闭灌丛为主。
英文摘要	3sub-watersheds in the north of Jinghe basin were selected as study areas. Based on the runoff and sediment data of 3 hydrological stations and the precipitation data, classified MODIS image data, all of these were analyzed runoff and sediment variation of watersheds and its land cover pattern. Results show that the visible difference of runoff yield and sediment yield and land cover pattern were found in the up of Huanjian, Heshuichuan and Ruihe. The runoff yield increased 60% but sediment yield increased double of the up of Huanjian,runoff yield decreased 40% but sediment yield decreased five times of the Ruihe, runoff yield had no change but sediment yield increased slightly of the Heshuichuan over 30 yeays. The up of Huanjiang only had 6 land-cover types and dominated by low density grassland and semi-desert grassland, 9 land-cover types and dominated by forest,cropland and high density grassland of Ruihe, but 7 land-cover types and dominated by forest and closed shrub of Heshuichuan.
中文关键词	流域 ; 径流量 ; 输沙量 ; 土地覆被 ; 景观格局
英文关键词	watershed runoff yield sediment yield land-cover landscape pattern
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:2458216
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220184
作者单位	1.佛山大学资源环境系, 佛山, 广东 528000, 中国; 2.北京师范大学生命科学学院, 北京 100875, 中国
推荐引用方式 GB/T 7714	王兮之,索安宁,洪军,等. 泾河典型流域水沙变化及其景观格局分析[J]. 北京师范大学,2006,13(4):260-263.
APA	王兮之,索安宁,洪军,毕晓丽,&葛剑平.(2006).泾河典型流域水沙变化及其景观格局分析.,13(4),260-263.
MLA	王兮之,et al."泾河典型流域水沙变化及其景观格局分析".13.4(2006):260-263.