干旱区生态环境知识资源中心(Arid): 锡林河流域近30年草原植被格局动态及驱动力分析

Arid

	锡林河流域近30年草原植被格局动态及驱动力分析
其他题名	The Changing of Vegetation Pattern and Its Driven Forces of Grassland in Xilin River Basin in Thirty Years
	韩砚君; 牛建明; 张庆; 董建军; 张雪峰; 康萨如拉
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2014
卷号	36 期号:2 页码:70-77
中文摘要	以内蒙古锡林河流域为对象,利用中分辨率卫星遥感数据,分析1983~2011年研究区域植被空间格局及其动态,探讨植被格局变化的驱动力。结果表明:(1)草原是锡林河流域最主要的植被类型,地带性规律明显,自东南向西北依次分布着草甸草原和典型草原,隐域性沙地植被和湿地草甸分布其中。(2)近30年间,锡林河流域植被面积组成发生了明显的变化:天然草地面积逐渐减少,草原灌丛化趋势加剧,沙地植被和盐碱地分布范围不断扩大。(3)近30年来,研究区域植被景观格局变化显著,破碎化程度加剧,其中中生杂类草草甸草原和羊草草原破碎化尤为突出。(4)锡林河流域草地退化趋势明显,但2000年后趋于减缓。(5)人类干扰是导致锡林河流域植被格局变化的根本原因,"双权一制"制度的实施缓解了区域草地退化趋势。
英文摘要	In recent years, the serious problem of grassland ecosystem degradation in the north of China has aroused extensive attention in domestic and abroad. The study on vegetation patterns and dynamics was an important approach to comprehensively and deeply understand the phenomenon of ecosystem degradation, and explore its inherent mechanism. This research was conducted in Xilin River Basin. Based on satellite remote sensing data of medium resolution, the vegetation patterns and dynamics were analyzed from 1983 to 2011. The main objective was to reveal the time-space vegetation pattern change and its driving force. It will help furthermore to get a comprehensive understanding about the problem of grassland degradation. The results showed that: (1) Grassland was the dominant vegetation type, and zonal distribution law was: meadow steppe and typical steppe appeared in turn from southeast to northwest. In addition, intrazonal vegetation, such as sand and wetland meadow distributed patchy. (2) In the recent 30 years, the area of natural grassland reduced continuously in Xilin River Basin. The area of shrub grassland was increased. Meanwhile, both desertification and saline land expanded significantly. (3) At the landscape scale, the degree of fragmentation was more intensified. Medium forbs meadow steppe and Leymus chinensis grassland became more fragmental. (4) The grassland in Xilin River Basin was degraded, but the speed became low after 2000. (5) The main reasons why grassland was degraded and vegetation pattern was changed was land use change, livestock production and social economy. The land policy of "two rights and one system" played an active role in relieving degradation of grassland.
中文关键词	植被动态 ; 景观格局 ; 草原 ; 驱动力 ; 锡林河流域
英文关键词	Vegetation dynamics Landscape pattern Grassland Driven forces Xilin River Basin
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:5112508
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232039
作者单位	内蒙古大学生命科学学院, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	韩砚君,牛建明,张庆,等. 锡林河流域近30年草原植被格局动态及驱动力分析[J],2014,36(2):70-77.
APA	韩砚君,牛建明,张庆,董建军,张雪峰,&康萨如拉.(2014).锡林河流域近30年草原植被格局动态及驱动力分析.中国草地学报,36(2),70-77.
MLA	韩砚君,et al."锡林河流域近30年草原植被格局动态及驱动力分析".中国草地学报 36.2(2014):70-77.