干旱区生态环境知识资源中心(Arid): 基于决策树分类的塔里木河下游沙漠化动态变化分析

Arid

	基于决策树分类的塔里木河下游沙漠化动态变化分析
其他题名	Analysis of Dynamic Changes of Sandy Desertification in the Lower Reaches of Tarim River Based on Decision Tree Classification
	李诚志; 刘志辉; 袁林
来源期刊	环境科学研究
ISSN	1001-6929
出版年	2011
卷号	24 期号:8 页码:933-941
中文摘要	运用决策树分类法对1990年,2000年,2006年3期遥感影像进行分类,寻求生态输水对塔里木河下游沙漠化进程的影响.结果表明,2000年生态输水后沙漠化速度减缓,但沙漠化进程仍在继续.沙漠化变化方向主要为非沙漠化轻度沙漠化中度沙漠化重度沙漠化极重度沙漠化,生态输水后正向变化减小,逆向变化量增加.沙漠化变化区域主要集中在绿洲边缘和河道两侧,生态输水后变化区域离绿洲边缘和河道更近.沙漠化与距河道距离密切相关,距河道越远沙漠化退化越严重;生态输水后,距离河道1 km内的沙漠化得到抑制并出现逆转.
英文摘要	Remote sensing images from 1990,2000 and 2006 were classified with decision tree classification to examine the effect of the ecological water delivery project on the desertification changes in the lower reaches of the Tarim River.The results indicate that:the desertification speed slowed down,although the desertification progress is still continuing after the ecological water delivery project in 2000.The normal progress of desertification is from non-desertification to light desertification,then moderate desertification,then severe desertification,and finally extreme desertification.However,after the ecological water delivery project,desertification changes in the forward direction were reduced,while changes in the reverse direction were increased.The changed regions are concentrated on the borders of the oasis and on the both sides of the river.After the ecological water delivery project,the changed regions became much closer to the border of the oasis and both sides of the river.The relationship between desertification and distance to the river is closely related:the farther the distance,the more severe the desertification.The desertification is controlled within 1 km of the river sides,and the desertification direction was inversed after the ecological water delivery project.
中文关键词	沙漠化 ; 动态变化 ; 决策树分类 ; 塔里木河下游
英文关键词	desertification dynamic change decision tree classification lower reaches of Tarim River
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4307568
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226733
作者单位	新疆大学资源与环境科学学院, 教育部绿洲生态重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	李诚志,刘志辉,袁林. 基于决策树分类的塔里木河下游沙漠化动态变化分析[J]. 新疆大学,2011,24(8):933-941.
APA	李诚志,刘志辉,&袁林.(2011).基于决策树分类的塔里木河下游沙漠化动态变化分析.环境科学研究,24(8),933-941.
MLA	李诚志,et al."基于决策树分类的塔里木河下游沙漠化动态变化分析".环境科学研究 24.8(2011):933-941.