干旱区生态环境知识资源中心(Arid): 青藏高原高寒绿洲景观格局特征分析

Arid

	青藏高原高寒绿洲景观格局特征分析
其他题名	Analysis of Characteristics of Landscape Patterns in Xiangride Oasis in Qinghai Province
	李瑞 1; 张克斌1 ; 杨晓晖 2; 夏照华 1
ISSN	1003-7578
出版年	2006
卷号	20 期号:6 页码:43-47
中文摘要	借助遥感(RS)、地理信息系统(GIS)等手段,运用生态学原理对青海香日德绿洲进行景观格局特征分析.结果表明,香日德绿洲景观多样性指数和均匀性指数分别为1.634和0.8397,均处于中等水平.研究区景观优势度不高,但是耕地、林地、未利用土地仍占有较高的景观比例,尤其耕地,不但景观比例大而且随着移民的不断涌入还有增长趋势;研究区景观分离度最大的是交通用地,最小的是耕地,表明耕地分散程度最小,交通用地最大.区域景观破碎度最大的是耕地和林地,最小的是交通用地和水域,说明耕地被分割程度最大,水域和交通用地最小.分维数指数最大的是居民及工矿用地,最小的是耕地,即居民点及工矿用地形状最不规则,受人为干扰最小,相反耕地形状最为规则,受人为干扰最大.
英文摘要	In this paper the characteristics of landscape patterns in Xiangride Oasis in Qinghai province by means of remote sensing (RS) , geographical information system (GIS) and theories of ecology etc were analyzed. The results showed that the indexes of diversity and evenness were 1. 634 and 0. 8397, both located on middle position. The dominance index in research area was not very high, but the farmland, forest a land and unused land still took high landscape proportion, especially the farmland not only took a large landscape proportion but also increased with the emigration coming into the oasis. The biggest landscape separation index in the research area was the traffic land and the smallest was the farmland, which showed that the scattered degree of farmland was the least and the land use of traffic land was the biggest. The biggest regional landscape fragmentation were farmland and forest land, the smallest were the land use of traffic land and water area, which showed that the dividing degree of farmland was the biggest and the land use of traffic land and water area were the least. The biggest index of fractal dimensions were residential and industrial land, the least was farmland. It meaned that the shape of residential and industrial land was irregularly, the human disturbance was the least, otherwise the shape of farmland was regular and human disturbance was the biggest.
中文关键词	香日德 ; 绿洲 ; 景观格局 ; 指数
英文关键词	Xiangride oasis landscape patterns index
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:2435574
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219821
作者单位	1.北京林业大学水土保持学院, 100083; 2.中国林业科学研究院林业研究所, 100091
推荐引用方式 GB/T 7714	李瑞,张克斌,杨晓晖,等. 青藏高原高寒绿洲景观格局特征分析[J]. 北京林业大学,2006,20(6):43-47.
APA	李瑞,张克斌,杨晓晖,&夏照华.(2006).青藏高原高寒绿洲景观格局特征分析.,20(6),43-47.
MLA	李瑞,et al."青藏高原高寒绿洲景观格局特征分析".20.6(2006):43-47.