Using Landsat Data to Detect Change in Live to Recently (<6 Months) Dead Coral Cover in the Western Xisha Islands, South China Sea

doi:10.3390/su12135237

	Using Landsat Data to Detect Change in Live to Recently (<6 Months) Dead Coral Cover in the Western Xisha Islands, South China Sea
	Zuo, Xiuling 1,2,3; Su, Fenzhen 2; Zhang, Junjue 2; Wu, Wenzhou 2
刊名	SUSTAINABILITY
	2020-07-01
卷号	12 期号:13 页码:13
关键词	coral reef coral cover remote sensing change detection Xisha Islands South China Sea climate warming
DOI	10.3390/su12135237
通讯作者	Su, Fenzhen(sufz@lreis.ac.cn)
英文摘要	The amount of live and dead coral is related to recruitment, but differentiating them by remote sensing techniques is difficult. We measured change in the amount of live, bleached, and recently (<6 months) dead coral cover (CCA6) for an island archipelago in the South China Sea. Six Landsat 4/7 ETM/8 OLI images from 1989-1990, 2005, and 2014 were analyzed to assess changes in CCA6 at 14 coral reefs in the western Xisha Islands. Satellite images were georectified and calibrated to remote sensing reflectance. Models for three shallow water (<6 m) geomorphic zones throughout the western Xisha Islands are proposed based on ground-truthed data collected in 2014 and satellite-determined spectral values for 2014 images. Nonlinear models based on Landsat image blue spectral bands for reef slope and lagoon habitats, and green bands for reef flat habitats, are determined as optimal models. Significant changes in CCA6 from 2005 to 2014, and changes in coral reefs and geomorphic zones, correlate with increased numbers of both crown-of-thorns starfish, and sea surface temperature in 2007. Detecting change in CCA6 by remote sensing can provide large-scale information of value for coral reef management, restoration, and protection.
资助项目	National Natural Science Foundation of China[41801341] ; Guangxi Natural Science Foundation of China[2018JJB150030] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA13010400] ; State Key Laboratory of Resources and Environmental Information System
WOS关键词	GREAT-BARRIER-REEF ; SPECTRAL DISCRIMINATION ; SPERMONDE ARCHIPELAGO ; IN-SITU ; CLASSIFICATION ; COMMUNITIES ; DECLINE ; SENSORS ; IMAGERY
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种	英语
出版者	MDPI
WOS记录号	WOS:000550120900001
资助机构	National Natural Science Foundation of China ; Guangxi Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; State Key Laboratory of Resources and Environmental Information System
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/158386]
专题	中国科学院地理科学与资源研究所
通讯作者	Su, Fenzhen
作者单位	1.Guangxi Univ, Sch Marine Sci, Nanning 530004, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.Guangxi Univ, Coral reef Res Ctr China, Guangxi Lab Study Coral Reefs South China Sea, Nanning 530004, Peoples R China
推荐引用方式 GB/T 7714	Zuo, Xiuling,Su, Fenzhen,Zhang, Junjue,et al. Using Landsat Data to Detect Change in Live to Recently (<6 Months) Dead Coral Cover in the Western Xisha Islands, South China Sea[J]. SUSTAINABILITY,2020,12(13):13.
APA	Zuo, Xiuling,Su, Fenzhen,Zhang, Junjue,&Wu, Wenzhou.(2020).Using Landsat Data to Detect Change in Live to Recently (<6 Months) Dead Coral Cover in the Western Xisha Islands, South China Sea.SUSTAINABILITY,12(13),13.
MLA	Zuo, Xiuling,et al."Using Landsat Data to Detect Change in Live to Recently (<6 Months) Dead Coral Cover in the Western Xisha Islands, South China Sea".SUSTAINABILITY 12.13(2020):13.