干旱区生态环境知识资源中心(Arid): 农牧交错带近十五年生态环境变化评价以鄂尔多斯地区为例

Arid

	农牧交错带近十五年生态环境变化评价以鄂尔多斯地区为例
其他题名	Ecosystem change and assessment of ecotone between agriculture and animal husbandry regions in North China in the last fifteen yearsA case study of Ordos Prefecture, Inner Mongolia
	罗海江 1; 白海玲 1; 方修琦 1; 王文杰 2; 李增慧 3; 申文明 2; 熊文成 2; 张峰 2
ISSN	1000-6060
出版年	2007
卷号	30 期号:4 页码:474-481
中文摘要	农牧交错带是我国生态最为脆弱的地区之一,生态系统极易受内外营力的影响产生扰动和变化,是我国生态状况变化最快最频繁的区域之一.该研究以Landsat的TM/ETM+、Spot的Vegetation数据为数据源,选取我国典型的农牧交错带鄂尔多斯地区为研究区域,根据两种数据的特点,对TM/ETM+影像以研究区域内土地退化、沙化为重点,对Vegetation以反映研究区域生物量变化的植被指数为指标,分析了近十五年来该地区生态环境的变化,并对研究区域近50年来的气候变化进行了研究.认为:该区域在研究时段的前段生态环境在持续退化,土地沙化和草地退化是这一时期的研究区域生态环境变化为主要特点,而后期生态环境出现了比较明显的恢复,时间转折点出现在2001年;气候变暖和降雨量的变化在这种变化过程中起了重要作用.其中,降水量的变化与生态环境的变化吻合良好.
英文摘要	The transitional zone between the agricultural and pastural areas is one of the most vulnerable regions in China, whose ecosystem tends to disturbance and change influenced by inner and outer factors. This paper adopted the TM/ETM + and SPOT VEGETATION data as data sources and chose Ordos grassland as a research area. According to the data characteristics TM/ETM + images were used to analyze the land erosion and desertification, and VEGETION data were applied to acquire NDVI which is a biomass index. The paper analyzed the ecosystem dynamic change in the region in the recent 15 years. Based on the research, the paper reached the conclusions; (1) the ecosystem of this zone was in degeneration before 2001, land desertification and grassland degeneration were major features of ecosystem change in the period; however, the ecosystem got distinct restoration after 2001. The time when the ecology and environment in the region changed from degeneration to restoration was in 2001. (2) the warming climate and the precipitation change were responsible for such ecosystem change. Among them, the precipitation change was considerably in accordance with the ecology and environment change.
中文关键词	环境地物 ; 土地沙化 ; 草地退化 ; 农牧交错带
英文关键词	environmental features land desertification pasture degradation
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:2854083
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220931
作者单位	1.北京师范大学, 北京 100875, 中国; 2.中国环境监测总站, 北京 100029, 中国; 3.东北师范大学城市与环境科学学院, 长春, 吉林 130024, 中国
推荐引用方式 GB/T 7714	罗海江,白海玲,方修琦,等. 农牧交错带近十五年生态环境变化评价以鄂尔多斯地区为例[J]. 北京师范大学,2007,30(4):474-481.
APA	罗海江.,白海玲.,方修琦.,王文杰.,李增慧.,...&张峰.(2007).农牧交错带近十五年生态环境变化评价以鄂尔多斯地区为例.,30(4),474-481.
MLA	罗海江,et al."农牧交错带近十五年生态环境变化评价以鄂尔多斯地区为例".30.4(2007):474-481.