干旱区生态环境知识资源中心(Arid): Spatio-temporal dynamics of vegetation in Jungar Banner of China during 2000-2017

Arid

	Spatio-temporal dynamics of vegetation in Jungar Banner of China during 2000-2017
	Li Xinhui; Lei Shaogang; Cheng Wei; Liu Feng; Wang Weizhong
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2019
卷号	11 期号:6 页码:837-854
英文摘要	It is known that the exploitation of opencast coal mines has seriously damaged the environments in the semi-arid areas. Vegetation status can reliably reflect the ecological degeneration and restoration in the opencast mining areas in the semi-arid areas. Long-time series MODIS NDVI data are widely used to simulate the vegetation cover to reflect the disturbance and restoration of local ecosystems. In this study, both qualitative (linear regression method and coefficient of variation (CoV)) and quantitative (spatial buffer analysis, and change amplitude and the rate of change in the average NDVI) analyses were conducted to analyze the spatio-temporal dynamics of vegetation during 2000-2017 in Jungar Banner of Inner Mongolia Autonomous Region, China, at the large (Jungar Banner and three mine groups) and small (three types of functional areas: opencast coal mining excavation areas, reclamation areas and natural areas) scales. The results show that the rates of change in the average NDVI in the reclamation areas (20%-60%) and opencast coal mining excavation areas (10%-20%) were considerably higher than that in the natural areas (<7%). The vegetation in the reclamation areas experienced a trend of increase (3-5 a after reclamation)-decrease (the sixth year of reclamation)-stability. The vegetation in Jungar Banner has a spatial heterogeneity under the influences of mining and reclamation activities. The ratio of vegetation improvement area to vegetation degradation area in the west, southwest and east mine groups during 2000-2017 was 8:1, 20:1 and 33:1, respectively. The regions with the high CoV of NDVI above 0.45 were mainly distributed around the opencast coal mining excavation areas, and the regions with the CoV of NDVI above 0.25 were mostly located in areas with low (28.8%) and medium-low (10.2%) vegetation cover. The average disturbance distances of mining activities on vegetation in the three mine groups (west, southwest and east) were 800, 800 and 1000 m, respectively. The greater the scale of mining, the farther the disturbance distances of mining activities on vegetation. We conclude that vegetation reclamation will certainly compensate for the negative impacts of opencast coal mining activities on vegetation. Sufficient attention should be paid to the proportional allocation of plant species (herbs and shrubs) in the reclamation areas, and the restored vegetation in these areas needs to be protected for more than 6 a. Then, as the repair time increased, the vegetation condition of the reclamation areas would exceed that of the natural areas.
英文关键词	NDVI spatio-temporal dynamics linear regression method mining activities opencast coal mining areas reclamation areas Jungar Banner
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6623009
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336218
作者单位	Li Xinhui, (Xuzhou)China University of Mining and Technology;;(Xuzhou)School of Environment Science and Spatial Informatics, China University of Mining and Technology, Engineering Research Center of Ministry of Education for Mine Ecological Restoration;;, Xuzhou;;Xuzhou, ;; 221116;;221116.; Lei Shaogang, (Xuzhou)China University of Mining and Technology;;(Xuzhou)School of Environment Science and Spatial Informatics, China University of Mining and Technology, Engineering Research Center of Ministry of Education for Mine Ecological Restoration;;, Xuzhou;;Xuzhou, ;; 221116;;221116.; Cheng Wei, (Xuzhou)China University of Mining and Technology;;(Xuzhou)School of Environment Science and Spatial Informatics, China University of Mining and Technology, Engineering Research Center of Ministry of Education for Mine Ecological Restoration;;, Xuzhou;;Xuzhou, ;; 221116;;221116.; Liu Feng, Environmental Restoration and Management Center of Jungar Banner Mining Area, Erdos, 017100.; Wang Weizhong, Environmental Restorat...
推荐引用方式 GB/T 7714	Li Xinhui,Lei Shaogang,Cheng Wei,et al. Spatio-temporal dynamics of vegetation in Jungar Banner of China during 2000-2017[J],2019,11(6):837-854.
APA	Li Xinhui,Lei Shaogang,Cheng Wei,Liu Feng,&Wang Weizhong.(2019).Spatio-temporal dynamics of vegetation in Jungar Banner of China during 2000-2017.Journal of Arid Land,11(6),837-854.
MLA	Li Xinhui,et al."Spatio-temporal dynamics of vegetation in Jungar Banner of China during 2000-2017".Journal of Arid Land 11.6(2019):837-854.