干旱区生态环境知识资源中心(Arid): 1975-2014年锡林郭勒盟沙漠化时空演变分析

Arid

	1975-2014年锡林郭勒盟沙漠化时空演变分析
其他题名	Spatial-temporal evolution of desertification in Xilinguole League during 1975-2014
	丁文广; 赵晨; 陈利珍; 李丹璐
来源期刊	兰州大学学报. 自然科学版
ISSN	0455-2059
出版年	2017
卷号	53 期号:1 页码:60-67
中文摘要	选取锡林郭勒盟1975-2014年的Landsat卫星影像,分析了1975年以来锡林郭勒盟沙漠化土地动态变化特征.结果表明:锡林郭勒盟沙漠化从东向西逐渐由非沙漠化过渡到重度沙漠化,沙漠化总面积先增后减,2005年达到最大值;1985年以前沙漠化整体变化较小,1985年以后沙漠化变化较为剧烈,地域间变化不同,且轻度沙漠化的增减直接影响了沙漠化总面积的变化;重、中、轻3种程度的沙漠化重心从西南向东北依次排列,沙漠化重心在2005年以前持续向东迁移,之后向西有所折返.
英文摘要	The dynamic changing features of Xilinguole League desertified land were analyzed by selecting the Landsat satellite images of 1975-2014. The results showed that the desertification of Xilinguole League underwent a gradual transition from non-to severe desertification from east to west, the total desertification area increased first and decreased later, and reached the maximum in 2005. The changes in desertification occurred basically according to the contemporaneous climate changes. The overall changes in desertification were small before 1985 and dramatic changes occurred after 1985 with different situations from region to region, the increase and decrease of the light desertified land area had direct impact on the changes in the total area of desertification. The centroids of the three degrees, i.e. heavy, moderate and light, of desertified lands were in the order from southwest to northeast. The centroid of desertification had a sustained movement to the east before 2005 and then moved westward.
中文关键词	沙漠化 ; 转移矩阵 ; 重心迁移 ; 锡林郭勒盟
英文关键词	desertification transition matrix centroid migration Xilinguole League
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:5951716
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236243
作者单位	兰州大学资源环境学院, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	丁文广,赵晨,陈利珍,等. 1975-2014年锡林郭勒盟沙漠化时空演变分析[J]. 兰州大学,2017,53(1):60-67.
APA	丁文广,赵晨,陈利珍,&李丹璐.(2017).1975-2014年锡林郭勒盟沙漠化时空演变分析.兰州大学学报. 自然科学版,53(1),60-67.
MLA	丁文广,et al."1975-2014年锡林郭勒盟沙漠化时空演变分析".兰州大学学报. 自然科学版 53.1(2017):60-67.