干旱区生态环境知识资源中心(Arid): Detecting desertification in the ancient oases of southern Morocco

Arid

DOI	10.1038/s41598-023-46319-1
	Detecting desertification in the ancient oases of southern Morocco
	Rayne, Louise; Brandolini, Filippo; Makovics, Jen Lavris; Hayes-Rich, Emily; Levy, Jackson; Irvine, Hope; Assi, Lima; Bokbot, Youssef
通讯作者	Rayne, L
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2023
卷号	13 期号:1
英文摘要	Understanding what led to desertification in the long-term is crucial for adaptation to climate change and pressures on resources in North Africa, but existing maps do not accurately show the extent of degraded land or the traditional water systems which underpinned cultivation. These products rely on recent vegetation trends and hindcasted statistical data. Desertification which occurred prior to the later twentieth century is poorly represented, if at all. However, large areas of abandoned fields are distinctive in satellite imagery as brightly reflectant and smooth surfaces. We present a new and open-source machine-learning workflow for detecting desertification using satellite data. We used Google Earth Engine and the random forest algorithm to classify five landcover categories including a class representing desertified fields. The input datasets comprised training polygons, a 12-band Sentinel-2 composite and derived tasselled cap components, and a Sentinel-1 VV-polarisation composite. We test our approach for a case study of Skoura oasis in southern Morocco with a resulting accuracy of 74-76% for the desertification class. We used image interpretation and archaeological survey to map the traditional irrigation systems which supply the oasis.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001102634800058
WOS关键词	GLOBAL LAND-COVER ; TRANSFORMATION ; AGRICULTURE ; IRRIGATION ; KHETTARA ; SYSTEM ; OASIS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398606
推荐引用方式 GB/T 7714	Rayne, Louise,Brandolini, Filippo,Makovics, Jen Lavris,et al. Detecting desertification in the ancient oases of southern Morocco[J],2023,13(1).
APA	Rayne, Louise.,Brandolini, Filippo.,Makovics, Jen Lavris.,Hayes-Rich, Emily.,Levy, Jackson.,...&Bokbot, Youssef.(2023).Detecting desertification in the ancient oases of southern Morocco.SCIENTIFIC REPORTS,13(1).
MLA	Rayne, Louise,et al."Detecting desertification in the ancient oases of southern Morocco".SCIENTIFIC REPORTS 13.1(2023).