干旱区生态环境知识资源中心(Arid): 黑河流域中游张掖绿洲景观格局研究

Arid

	黑河流域中游张掖绿洲景观格局研究
其他题名	Research on the Landscape Pattern of Zhangye oasis in the Middle Reaches of Heihe River
	角媛梅; 马明国; 肖笃宁
来源期刊	冰川冻土
ISSN	1000-0240
出版年	2003
卷号	25 期号:1 页码:94-99
中文摘要	在解译的张掖绿洲土地利用/土地覆盖图的基础上，进行相关的景观类型综合处理，计算了绿洲景观格局的多个指数，结果表明，绿洲景观的组成以戈壁，沙地，耕地和草地为主，体现了荒漠基质受人工影响而形成的典型受精型绿洲的特点。绿洲内居民点众多，仅与少数类型邻接并且比较分散，戈壁，平原旱地和沙地分布则比较集中，盐碱地和裸岩石砾地的形状最复杂，戈壁的形状则最简单；同时，平原旱地，戈壁和裸岩石砾地的连续性均较好。在岩观中占有较大比重。类型间的物质和能量迁移比较通畅。
英文摘要	In this paper, Zhangye Oasis, a famous agricultural base located in the alluvion of Heihe River in Northwest China is selectred as study area. Landscape maps are compiled based on the landuse maps interpreted form Landsat TM images in 1995. the landscape structure analysis software FRAGSTATS Version 3 at class and landscape levels, including total area of ladscape, percentage of landscape types, patch density, edge density, largest patch indices, perimeter-area fractal dimension, interspersion & juxtaposition index, aggregation index, percentage of like adjacencies, patch cohesion index, Shannon’s diversity index, Shannon’s evenness index, patch richness and contagion. The results indicate that;desert , grassland, filed and gobi are the major components in the oasis. The landscape patterns of the oasis are heterogeneous mosaics embedded in desert and gobi landscape materix. Patches number of rural villages is the largest, which idicates the important influence of human beings. They are scattered in the whole landscapes and the unconnected each other. The shape of bare rock and grassland are the most complex, which reflected the human-induced fragmentation of these types. In addition, the better connection of dry field, Gobi and bare rock in indicate that the energy and mass can be transferred within the same types easily. At last, the caution of scale dependent of grid and calssification was discussed.
中文关键词	黑河流域 ; 绿洲 ; 景观格局 ; 景观指标 ; 张掖市 ; 景观生态学
英文关键词	Zhangye Oasis landscape pattern landscape metrics FRAGSTATS versions 3
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:1280831
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203814
作者单位	中国科学院寒区旱区环境工程研究所, 冻土工程国家重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	角媛梅,马明国,肖笃宁. 黑河流域中游张掖绿洲景观格局研究[J]. 中国科学院西北生态环境资源研究院,2003,25(1):94-99.
APA	角媛梅,马明国,&肖笃宁.(2003).黑河流域中游张掖绿洲景观格局研究.冰川冻土,25(1),94-99.
MLA	角媛梅,et al."黑河流域中游张掖绿洲景观格局研究".冰川冻土 25.1(2003):94-99.