干旱区生态环境知识资源中心(Arid): 青海玉树藏族自治州景观结构时空变化的分析

Arid

	青海玉树藏族自治州景观结构时空变化的分析
其他题名	Analysis of Spatial-Temporal Changes in the Landscape Structure of Yushu Prefecture in Qinghai Province
	郭泺 ; 薛达元 ; 杜世宏 ; 黄琦 ; 蔡亮
来源期刊	资源与生态学报
ISSN	1674-764X
出版年	2011
卷号	2 期号:2 页码:158-161
中文摘要	本文利用1987、1997和2007年遥感数据，结合野外调查，以玉树藏族自治州为例，研究20年来景观空间格局的时空变化特征。结果表明，研究区草地景观面积减少，农田和荒地增加；草地斑块的分布越来越分散，斑块面积减小。草地和森林植被是玉树藏族自治州主要的植物资源景观，草地的连通性比较高；人为干扰和气候的变化是研究区景观时空变化的主要原因。研究结果为该区域生态保护对策的制定和环境的可持续发展管理提供了理论依据和技术的指导。
英文摘要	Yushu Tibetan Autonomous Prefecture,an area located in the Qinghai-Tibet Plateau,is an area very sensitive to global climate change.Due to impacts from climate change and human disturbances,grassland vegetation in the area has been degraded and desertification has been expanding.Ecosystems in the area are very sensitive and fragile and ecological problems have become increasingly serious in the area,resulting in an adverse effect on the local socio-economic development and environment of Qinghai province.Using data gathered from Landsat TM/ETM images for 1987,1997 and 2007,we analyzed landscape patterns across Yushu Prefecture.Spatial structure indices indicated that:(i)the area of grassland has significantly decreased in the form of degradation and conversion from grassland into bare land and farmland;(ii)grassy vegetation patches changed into fragmented and isolated patches;(iii)the main landscapes in Yushu Prefecture are grasslands,forests and rivers;(iv)patches of grass have relatively high connectivity;and(v)landscape change is significantly correlated with human activities and climate change.This study provides a strong theoretical and technical basis for policy-making regarding environmental protection of and management in Yushu Prefecture of Qinghai Province.
中文关键词	玉树藏族自治州 ; 景观结构 ; 时空变化
英文关键词	Yushu Prefecture landscape structure spatial-temporal change
语种	英语
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:4270325
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227673
作者单位	1.College of Life and Environmental Sciences,Minzu University of China, Beijing 100081, China; 2.Institute of Remote Sensing and GIS,Peking University, Beijing 100871, China
推荐引用方式 GB/T 7714	郭泺,薛达元,杜世宏,等. 青海玉树藏族自治州景观结构时空变化的分析[J],2011,2(2):158-161.
APA	郭泺,薛达元,杜世宏,黄琦,&蔡亮.(2011).青海玉树藏族自治州景观结构时空变化的分析.资源与生态学报,2(2),158-161.
MLA	郭泺,et al."青海玉树藏族自治州景观结构时空变化的分析".资源与生态学报 2.2(2011):158-161.