干旱区生态环境知识资源中心(Arid): 基于RS和GIS的嫩江下游土地沙漠化景观格局变化特征分析

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	基于RS和GIS的嫩江下游土地沙漠化景观格局变化特征分析
其他题名	RS-and-GIS-Based Analysis of Variation of Landscape of Land Desertification in the Lower Reaches of Nenjiang River
	郭红 1; 龚文峰 2; 董隽 1; 王丹 1; 范文义 3
ISSN	1673-4831
出版年	2009
卷号	25 期号:3 页码:99-103
中文摘要	以2004、2008年的MODIS数据为主要数据源,在ArcGIS 9.0、ERDAS IMAGE 9.0等软件支持下,利用FRAGSTATS软件分析土地沙漠化的景观格局变化.结果表明,研究区域沙漠化土地以轻度和中度沙漠化土地为主;各景观要素的边缘密度和斑块密度呈现一致性的减少,表明斑块形状趋向简单,景观整体破碎化程度降低,边缘效应影响减小;除水域景观外,其他景观要素的形状指数和分维数都呈现一致性的下降,表明整体景观的形状都向着简单化和稳定性方向发展,各景观要素的散布与并列指数和聚集度指数都呈现一致性的增加,反映出各要素斑块趋向大型化发展,景观整体连接度增强,破碎化程度降低,景观相互作用和空间关系增强.
英文摘要	Based on the MODIS data of 2004 and 2008,variation of the landscape of land desertification in the lower reaches of Nenjiang River was explored with the aid of ArcGIS 9.0,ERDAS IMAGE 9.0,and FRAGSTATS.Results show that the desertified land in the studied area was dominated with light and moderate desertification.The edge density and patch density of various landscape elements decreased coincidentally,showing that patches were getting to be simpler in shape,the fragmentation degree of the landscape as a whole lowered and edge effect declined.Of all the landscape elements,except for water landscape,the shape index and the fractal dimension index both dropped,suggesting that the landscape as a whole developed towards simplicity and stability in shape.The interspersion juxtaposition index (IJI) and aggregation index (AI) of all the landscape elements showed a uniform rising trend,demonstrating that patches of the elements were turning to be larger,overall connectivity of the landscape higher,fragmentation degree lower,and interaction and spatial relationship of the landscapes have been strengthened.
中文关键词	景观格局 ; 土地沙漠化 ; 动态变化
英文关键词	MODIS landscape pattern desertification land MODIS dynamic change
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY ; ECOLOGY
WOS研究方向	Geology ; Environmental Sciences & Ecology
CSCD记录号	CSCD:3650588
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224120
作者单位	1.哈尔滨学院地理系, 哈尔滨, 黑龙江 150086, 中国; 2.黑龙江大学水利电力学院, 哈尔滨, 黑龙江 150086, 中国; 3.东北林业大学林学院, 哈尔滨, 黑龙江 150040, 中国
推荐引用方式 GB/T 7714	郭红,龚文峰,董隽,等. 基于RS和GIS的嫩江下游土地沙漠化景观格局变化特征分析[J],2009,25(3):99-103.
APA	郭红,龚文峰,董隽,王丹,&范文义.(2009).基于RS和GIS的嫩江下游土地沙漠化景观格局变化特征分析.,25(3),99-103.
MLA	郭红,et al."基于RS和GIS的嫩江下游土地沙漠化景观格局变化特征分析".25.3(2009):99-103.