干旱区生态环境知识资源中心(Arid): 绿洲城市用地扩展的景观生态格局变化以武威市凉州区为例

Arid

	绿洲城市用地扩展的景观生态格局变化以武威市凉州区为例
其他题名	The changes of landscape ecological pattern as affected by the expansion of urban construction land use in oasis: A case of Liangzhou District of Wuwei City,Gansu
	魏石梅; 潘竟虎; 魏伟
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2018
卷号	37 期号:5 页码:1498-1508
中文摘要	在ArcGIS 10.2和Fragstats 4.2软件的支持下,采用圈层分析、景观指数、城市扩展强度指数等方法,以武威市凉州区1985、1995、2005和2015年4期土地利用现状数据为数据源,对凉州区19852015年城市用地扩展的景观生态格局变化特征进行分析。将整个研究区划分为东北(NE) 、东南(SE) 、西南(SW)和西北(NW) 4个方向,并以3 km为缓冲半径作覆盖整个研究区的23个圈层,分析了凉州区城市空间扩展时空演变特征、城市空间扩展过程中的土地利用和景观格局变化。结果表明:凉州区的城镇建设用地主要分布在0 ~ 3 km的区域范围内; 19852015年城镇建设用地面积持续增加,正东方向和东南方向是城镇扩展的主方向;凉州区城镇建设用地景观斑块形状简单,受人类活动干扰,斑块个数不断增加,破碎度加剧,且距离城镇经济中心越近斑块集中度越高。
英文摘要	The landscape ecological pattern of urban land-use expansion in Liangzhou District of Wuwei City,Gansu from 1985 to 2015 was analyzed by circle analysis,landscape index and urban expansion intensity index,with land-use status data in 1985,1995,2005 and 2015 in ArcGIS 10.2 and Fragstats 4.2. The whole study area was divided into four directions,i. e., northeast (NE),southeast (SE),southwest (SW) and northwest (NW). Each direction was divided into 23 concentric circles of 3-km incrementing radius to analyze the spatiotemporal evolution characteristics of urban spatial expansion and the land use and landscape pattern changes during this process. The results showed that the urban construction land of Liangzhou District was mainly distributed within 3 km of economic center. The area of urban construction land continuously increased from 1985 to 2015. The east and southeast were the main directions of urban expansion. The shape of landscape patch for urban construction land was simple. With the disturbance of human activities,the number of patches was increasing and the fragmentation was intensified. The aggregation of patches was higher when they were closer to the urban economic center.
中文关键词	景观格局 ; 城镇扩展 ; 圈层分析 ; 绿洲城市
英文关键词	landscape pattern urban expansion circle analysis oasis city
语种	中文
国家	中国
收录类别	CSCD
WOS类目	CONSTRUCTION BUILDING TECHNOLOGY
WOS研究方向	Construction & Building Technology
CSCD记录号	CSCD:6238877
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238191
作者单位	西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	魏石梅,潘竟虎,魏伟. 绿洲城市用地扩展的景观生态格局变化以武威市凉州区为例[J]. 西北师范大学,2018,37(5):1498-1508.
APA	魏石梅,潘竟虎,&魏伟.(2018).绿洲城市用地扩展的景观生态格局变化以武威市凉州区为例.生态学杂志,37(5),1498-1508.
MLA	魏石梅,et al."绿洲城市用地扩展的景观生态格局变化以武威市凉州区为例".生态学杂志 37.5(2018):1498-1508.