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学科主题: Oceanography
题名: Spatial and temporal variations in sediment accumulation and their impacts on coral communities in the Sanya Coral Reef Reserve, Hainan, China
作者: [Li, Xiu-bao ; Huang, Hui ; Lian, Jian-sheng ; Liu, Sheng ; Huang, Liang-min ; Yang, Jian-hui] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marine Bioresources Sustainable Utilizing, Guangzhou 510301, Guangdong, Peoples R China ; [Huang, Hui] Chinese Acad Sci, Trop Marine Biol Res Stn Hainan, Sanya 572000, Peoples R China
通讯作者: huanghui@scsio.ac.cn
关键词: Sedimentation ; Silt-clay-sized ; Threshold value ; Coral community ; Sanya ; Hainan island
刊名: DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
发表日期: 2013
卷: 96, 页:88-96
部门归属: LMB
资助者: This study was supported by the funds of the Chinese Academy of Sciences for Key Topics in Innovation Engineering (No. kzcx2-yw-227), the National Natural Science Foundation of China (Nos. 40830850, 41106141, 40931160437 and 40776085), the Ocean Public Welfare Scientific Research Project (No. 201005012-6) and National Key Technology R&D Program (No. 2009BAB44B01). Many thanks to Mrs. Yuyang Zhang, Cheng Ye and Zuosheng Zhen for field help.
摘要: This study investigated the spatial and temporal variations of sediment accumulation and their impacts on coral communities in four sites at two or three depths (3 m, 6 m and 9 m) at the Sanya Coral Reef Reserve by deploying sediment traps on the sea floor during 2007-2009. Rainfall and typhoon events, which appeared to control sediment accumulation in the sea floor of the coral reef, were positively correlated with total sediment and sand-sized (i.e. 63-2000 mu m) sediment accumulation. Sediment accumulation rate significantly decreased with the distance far away from the coast in Sanya. The mean sediment accumulation rates in Ximaozhou, Luhuitou and Xiaodonghai during 2007 to 2009 were close to 20 mg cm(-2) d(-1), and they were significantly higher than that in Yalongwan, probably as a result of terrestrial soil erosion caused by strong coast human activities (e.g. coastal construction, dredging and hillside clearing). Correlation analysis revealed that silt-clay-sized sediment accumulation rate was highly negatively correlated with total live coral cover and coral cover in some taxa, such as Montipora and branching Porites. whereas, Diploastrea heliopora was positively correlated with silt-clay-sized sediment accumulation. Correlation analysis also suggested that silt-clay-sized sediment accumulation had a higher efficiency in predicting the spatial variation of total live coral cover in Sanya than did the total sediment accumulation. Based on this investigation, we conclude that high rates of sediment accumulation pose a severe threat to the Sanya Coral Reef Reserve, highlighting the importance of integrated watershed management practices in the Sanya Coral Reef Reserve. (C) 2013 Elsevier Ltd. All rights reserved.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000328526100012
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10966
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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[Li, Xiu-bao; Huang, Hui; Lian, Jian-sheng; Liu, Sheng; Huang, Liang-min; Yang, Jian-hui] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marine Bioresources Sustainable Utilizing, Guangzhou 510301, Guangdong, Peoples R China; [Huang, Hui] Chinese Acad Sci, Trop Marine Biol Res Stn Hainan, Sanya 572000, Peoples R China.Spatial and temporal variations in sediment accumulation and their impacts on coral communities in the Sanya Coral Reef Reserve, Hainan, China,DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,2013,96():88-96
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