干旱区生态环境知识资源中心(Arid): Spatial and temporal variability in vegetation cover of Mongolia and its implications

Arid

	Spatial and temporal variability in vegetation cover of Mongolia and its implications
	Vandandorj Sumiya; Gantsetseg Batdelger; Boldgiv Bazartseren
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2015
卷号	7 期号:4 页码:450-461
英文摘要	In this paper, we attempted to determine the most stable or unstable regions of vegetation cover in Mongolia and their spatio-temporal dynamics using Terra/MODIS Normalized Difference Vegetation Index (NDVI) dataset, which had a 250-m spatial resolution and comprised 6 periods of 16-day composited temporal resolution data (from 10 June to 13 September) for summer seasons from 2000 to 2012. We also used precipitation data as well as biomass data from 12 meteorological stations located in 4 largest natural zones of Mongolia. Our study showed that taiga and forest steppe zones had relatively stable vegetation cover because of forest characteristics and relatively high precipitation. The highest coefficient of variation (CV) of vegetation cover occurred frequently in the steppe and desert steppe zones, mainly depending on variation of precipitation. Our results showed that spatial and temporal variability in vegetation cover (NDVI or plant biomass) of Mongolia was highly dependent on the amount, distribution and CV of precipitation. This suggests that the lowest inter-annual CV of NDVI can occur during wet periods of growing season or in high precipitation regions, while the highest inter-annual CV of NDVI can occur during dry periods and in low precipitation regions. Although the desert zone received less precipitation than other natural zones of the country, it had relatively low variation compared to the steppe and desert steppe, which could be attributed to the very sparse vegetation in the desert.
英文关键词	vegetation cover MODIS NDVI natural zones seasonal dynamics stability Mongolia
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	History
CSCD记录号	CSCD:5427725
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335490
作者单位	Vandandorj Sumiya, Institute of Meteorology, Hydrology and Environment, Ulaanbaatar, 210646, Mongolia.; Gantsetseg Batdelger, Institute of Meteorology, Hydrology and Environment, Ulaanbaatar, 210646, Mongolia.; Boldgiv Bazartseren, Ecology Group, Department of Biology, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar, 14201, Mongolia.
推荐引用方式 GB/T 7714	Vandandorj Sumiya,Gantsetseg Batdelger,Boldgiv Bazartseren. Spatial and temporal variability in vegetation cover of Mongolia and its implications[J],2015,7(4):450-461.
APA	Vandandorj Sumiya,Gantsetseg Batdelger,&Boldgiv Bazartseren.(2015).Spatial and temporal variability in vegetation cover of Mongolia and its implications.Journal of Arid Land,7(4),450-461.
MLA	Vandandorj Sumiya,et al."Spatial and temporal variability in vegetation cover of Mongolia and its implications".Journal of Arid Land 7.4(2015):450-461.