干旱区生态环境知识资源中心(Arid): Mapping Cork Oak Mortality Using Multitemporal High-Resolution Satellite Imagery

Arid

DOI	10.3390/rs14122750
	Mapping Cork Oak Mortality Using Multitemporal High-Resolution Satellite Imagery
	Catalao, Joao; Navarro, Ana; Calvao, Joao
通讯作者	Catalao, J
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:12
英文摘要	In the Mediterranean region, a significant decline in the vitality of vegetation has been observed in the last two decades, with a high forest mortality rate for several species. The increase in mortality has been attributed to water stress resulting from an increase in temperature and long periods of drought. To detect and quantify the impact of these events on tree mortality, an efficient and easy-to-use methodology for rapid damage assessment is required. Our study aims to assess the potential of high spatial resolution multispectral images from the Pleiades constellation to detect and map cork oak mortality in a pasture environment with multiple forest species. An approach based on change detection and the use of an unsupervised classifier is proposed to detect mortality at the cork oak level. The change in the values observed for three vegetation indices, NDVI, RGI, and GNDVI, between two epochs is used in an unsupervised classification algorithm to estimate the dead tree class. The classification results are accurate, with precision and recall values higher than 90%. Detailed cork oak mortality mapping is of significant use in comprehending ecosystem change as a result of tree mortality and for the implementation of mitigation mechanisms for the ongoing desertification process.
英文关键词	Quercus suber L cork oak decline Pleiades time series vegetation indices
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:000816368200001
WOS关键词	AUTOMATIC RADIOMETRIC NORMALIZATION ; TREE-CROWN DELINEATION ; COVER ; MAD ; REFLECTANCE ; SIMULATION ; VEGETATION ; WOODLAND ; DROUGHT ; INDEXES
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394158
推荐引用方式 GB/T 7714	Catalao, Joao,Navarro, Ana,Calvao, Joao. Mapping Cork Oak Mortality Using Multitemporal High-Resolution Satellite Imagery[J],2022,14(12).
APA	Catalao, Joao,Navarro, Ana,&Calvao, Joao.(2022).Mapping Cork Oak Mortality Using Multitemporal High-Resolution Satellite Imagery.REMOTE SENSING,14(12).
MLA	Catalao, Joao,et al."Mapping Cork Oak Mortality Using Multitemporal High-Resolution Satellite Imagery".REMOTE SENSING 14.12(2022).