干旱区生态环境知识资源中心(Arid): 近35年黑河中游临泽县荒漠化时空分异及景观格局变化

Arid

	近35年黑河中游临泽县荒漠化时空分异及景观格局变化
其他题名	Spatial-temporal difference and landscape pattern evolution of desertification in the middle reaches of the Heihe River: A case study of Linze county in Gansu
	钱大文; 巩杰; 高彦净
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2015
卷号	29 期号:4 页码:85-90
中文摘要	以黑河中游临泽县近35年Landsat遥感影像为数据源,基于3S技术、土地利用变化模型和景观格局研究方法,开展研究区荒漠化时空演变及景观格局动态研究。结果表明:研究区荒漠化土地面积总体减小,轻度荒漠化土地面积减少的幅度、空间位移和景观格局变化最大,中度和重度荒漠化土地面积及景观格局相对波动且逐渐向绿洲内部移动,极重度荒漠化土地移动距离最小且主体和景观格局相对稳定;在绿洲开发受限,荒漠化以重度和极重度为主的背景下,应以防治土地沙漠化和盐碱化扩张为主,合理调控绿洲开发活动,实现黑河中游绿洲的可持续发展。
英文摘要	Taking Linze county as the study area,based on the 3S technology,land use change model and landscape pattern analysis techniques,we got spatial-temporal evolution and dynamic changes of landscape pattern of desertification in this region nearly 35 years. The results showed that: (1) Desertification land area of Linze county had decreased in overall, the area decrease amplitude,spatial displacement and landscape pattern changes of light desertificated land was the biggest,moderate and severe desertificated land area and landscape pattern were relatively volatile and gradually moved to the internal oasis,extremely severe desertificated land had the minimum distance of movement and was the relatively stable body and landscape pattern. (2) Under the background of the limitations in oasis reclamation,the moderate and severe desertifications were still vary severe,so future desertification control should prevent the erosion and expansion of desertification and salinization and strengthen and guide rational human activities to promote sustainable development of oasis.
中文关键词	黑河中游 ; 荒漠化 ; 景观格局 ; 临泽县
英文关键词	middle reaches of the Heihe River desertification landscape pattern Linze county
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:5395635
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/2XILL650/232780
作者单位	兰州大学西部环境与气候变化研究院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	钱大文,巩杰,高彦净. 近35年黑河中游临泽县荒漠化时空分异及景观格局变化[J]. 兰州大学,2015,29(4):85-90.
APA	钱大文,巩杰,&高彦净.(2015).近35年黑河中游临泽县荒漠化时空分异及景观格局变化.干旱区资源与环境,29(4),85-90.
MLA	钱大文,et al."近35年黑河中游临泽县荒漠化时空分异及景观格局变化".干旱区资源与环境 29.4(2015):85-90.