干旱区生态环境知识资源中心(Arid): Monitoring Grassland Desertification in Zoige County Using Landsat and UAV Image

Arid

DOI	10.15244/pjoes/136184
	Monitoring Grassland Desertification in Zoige County Using Landsat and UAV Image
	Tu, Mingguang; Lu, Hong; Shang, Min
通讯作者	Lu, H (corresponding author)，SouthWestern Univ Finance & Econ, Res Inst Social Dev, Chengdu 610000, Peoples R China.
来源期刊	POLISH JOURNAL OF ENVIRONMENTAL STUDIES
ISSN	1230-1485
EISSN	2083-5906
出版年	2021
卷号	30 期号:6
英文摘要	The increasing rate of sandy desertification lands in Zoige County has been regarded as an imminent threat recently. There is an urgent need to monitor the status, trend of desertification. This study used a land cover classification process of integrating Support Vector Machine classifier (SVM) with threshold method to extract the sandy lands based on Landsat data collected from 1990 to 2017. Furthermore, we quantitatively analyzed the evolution trend of the grassland desertification and verified the effect of desertification control using the unmanned aerial vehicle (UAV) image acquired in 2019. Three conclusions are drawn from the study. First, the sandy land is mainly distributed along the directions of prevailing wind at the edges of mountains in the southwest. Second, the area of sandy lands increased from 29.75 km(2) in 1990 to 46.87 km(2 )in 2005 and then decreased to 22.58 km(2) in 2013. While during 2014-2017, the area increased to 33.61 km(2). Third, the increasing of sandy lands is closely related to the terrain and water resources distribution. Ecological restoration policies, especially the ecological recovery projects implemented are the main driving factor of desertification reversion. The results of this study can provide effective data and decision support for combating desertification.
英文关键词	desertification supervised classification Zoige County Landsat and UVA image information extraction
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000760618000033
WOS关键词	SPECTRAL MIXTURE ANALYSIS ; INDEX ; NDVI
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375983
作者单位	[Tu, Mingguang] Jiujiang Univ, Jiangxi Key Lab Ind Ecol Simulat & Environm Hlth, Jiujiang 332005, Peoples R China; [Lu, Hong] SouthWestern Univ Finance & Econ, Res Inst Social Dev, Chengdu 610000, Peoples R China; [Shang, Min] Sichuan Solid Waste & Chem Management Ctr, Chengdu 610000, Peoples R China
推荐引用方式 GB/T 7714	Tu, Mingguang,Lu, Hong,Shang, Min. Monitoring Grassland Desertification in Zoige County Using Landsat and UAV Image[J],2021,30(6).
APA	Tu, Mingguang,Lu, Hong,&Shang, Min.(2021).Monitoring Grassland Desertification in Zoige County Using Landsat and UAV Image.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,30(6).
MLA	Tu, Mingguang,et al."Monitoring Grassland Desertification in Zoige County Using Landsat and UAV Image".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 30.6(2021).