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学科主题: Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
题名: Detection of Seagrass Distribution Changes from 1991 to 2006 in Xincun Bay, Hainan, with Satellite Remote Sensing
作者: Yang, DT ; Yang, CY
通讯作者: dtyang@scsio.ac.cn
关键词: Seagrass distribution change ; remote sensing ; Xincun bay
刊名: SENSORS
发表日期: 2009
卷: 9, 期:2, 页:830-844
收录类别: sci
部门归属: [Yang, Dingtian; Yang, Chaoyu] Chinese Acad Sci, LED, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
项目归属: LED
摘要: Seagrass distribution is a very important index for costal management and protection. Seagrass distribution changes can be used as indexes to analyze the reasons for the changes. In this paper, in situ hyperspectral observation and satellite images of QuickBird, CBERS (China Brazil Earth Resources Satellite data) and Landsat data were used to retrieve bio-optical models and seagrass (Enhalus acoroides, Thalassia hemperichii) distribution in Xincun Bay, Hainan province, and seagrass distribution changes from 1991 to 2006 were analyzed. Hyperspectral results showed that the spectral bands at 555, 635, 650 and 675 nm are sensitive to leaf area index (LAI). Seagrass detection with QuickBird was more accurate than that with Landsat TM and CBERS; five classes could be classified clearly and used as correction for seagrass remote sensing data from Landsat TM and CBERS. In order to better describe seagrass distribution changes, the seagrass distribution area was divided as three regions: region A connected with region B in 1991, however it separated in 1999 and was wholly separated in 2001; seagrass in region C shrank gradually and could not be detected in 2006. Analysis of the reasons for seagrass reduction indicated it was mainly affected by aquaculture and typhoons and in recent years, by land use changes.
原文出处: 查看原文
WOS记录号: WOS:000263823500008
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6141
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Recommended Citation:
Yang, DT; Yang, CY.Detection of Seagrass Distribution Changes from 1991 to 2006 in Xincun Bay, Hainan, with Satellite Remote Sensing,SENSORS,2009,9(2):830-844
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文件名: Detection of Seagrass Distribution Changes from 1991 to 2006 in.pdf
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