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

文献类型：期刊论文

作者Zuo, Xiuling1,2,3; Su, Fenzhen1; Zhang, Junjue1; Wu, Wenzhou1
刊名SUSTAINABILITY
出版日期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
DOI10.3390/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.
WOS关键词GREAT-BARRIER-REEF ; SPECTRAL DISCRIMINATION ; SPERMONDE ARCHIPELAGO ; IN-SITU ; CLASSIFICATION ; COMMUNITIES ; DECLINE ; SENSORS ; IMAGERY
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研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000550120900001
出版者MDPI
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
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.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.Guangxi Univ, Sch Marine Sci, Nanning 530004, 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.

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来源：地理科学与资源研究所

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