干旱区生态环境知识资源中心(Arid): 基于景观结构和3S技术的干旱区绿洲生态风险分析

Arid

	基于景观结构和3S技术的干旱区绿洲生态风险分析
其他题名	Eco - risk of oasis in arid region based on landscape structure and 3S methods
	李程程; 南忠仁; 王若凡; 王宁; 颜斌; 臧振峰
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2012
卷号	26 期号:11 页码:31-35
中文摘要	以干旱区绿洲的典型区域-张掖市高台县为研究对象,基于景观结构中的景观干扰度指数和景观脆弱度指数构建区域生态风险指数,并利用空间分析方法对生态风险指数进行变量空间化。通过对生态风险指数采样结果进行半变异函数分析和空间插值,绘制了研究区域2000和2010年生态风险分布图,并对区域生态风险结构分布变化和空间分布变化进行分析。结果表明:生态风险强度为0.1-0.3的区域主要分布在水域、建设用地与耕地集中的人工绿洲区;生态风险强度为0.3-0.4的区域主要分布在人工绿洲外围的过渡带;以盐碱地、戈壁及沙地景观为主的各种荒漠景观类型所在区域的生态风险强度在0.4-0.65之间。
英文摘要	Gaotai county of Zhangye city is the typical area in arid areas oasis. We took where as the research object. Based on the landscape interference index and the landscape fragile index we constructed the regional ecological risk index, and used the space analysis method to analyze the spatial variable. After the performance of sampling, the semivariogram analysis and block kriging were conducted to compile the maps of 2000 and 2010 ecological risk distribution. The maps were used to analyze the changes of structure distribution and spatial distribution of the regional ecological risk. The result indicated that the area of ecological risk strength in 0.1-0.3 mainly was the artificial oases area of the water area, construction land and concentrated area of arable land; the area of ecological risks strength in the 0.3-0.4 was the transition zone outside of artificial oasis; the ecological risks strength between 0.4 and 0.65 concentrated in the desert landscape area consisted of saline-alkali land, gobi and sandy land.
中文关键词	干旱区绿洲 ; 生态风险 ; 空间分析
英文关键词	arid areas oasis ecological risk spatial analysis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4699657
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228144
作者单位	兰州大学资源环境学院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	李程程,南忠仁,王若凡,等. 基于景观结构和3S技术的干旱区绿洲生态风险分析[J]. 兰州大学,2012,26(11):31-35.
APA	李程程,南忠仁,王若凡,王宁,颜斌,&臧振峰.(2012).基于景观结构和3S技术的干旱区绿洲生态风险分析.干旱区资源与环境,26(11),31-35.
MLA	李程程,et al."基于景观结构和3S技术的干旱区绿洲生态风险分析".干旱区资源与环境 26.11(2012):31-35.