Estimate of carbonate production by scleractinian corals at Luhuitou fringing reef,Sanya,China

查看全文 作　　者：SHI [1]Qi;ZHAO [1]MeiXia;ZHANG [1]QiaoMin;YU [1]KeFu;CHEN [1]TianRan;LI [1]Shu;WANG [1,2]HanKui

机构地区：[1]CAS Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;[2]Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya 572000, China

出　　处：《Chinese Science Bulletin》索引2009年第54卷第4期,共10页

基　　金：Supported by Knowledge Innovation Project of the Chinese Academy of Sciences (Grant No. KZCX2-YW-318);National Natural Science Foundation of China (Grant Nos. 40406018 and 40830852);National Key Technology Research and Development Program (Grant Nos. 2007CB815905 and 2006BAB19B03) 摘　　要：Carbonate production by scleractinian corals not only maintains coral reef growth, but also represents an important source of atmospheric carbon dioxide. In this paper the carbonate production by scler-actinian corals at Luhuitou fringing reef, Sanya, Hainan Island, China, is investigated with an ecological census-based method. Averaged carbonate production is 1.16 ± 0.55 kg·m-2·a-1 and 3.52 ± 1.32 kg·m-2·a-1 on the reef flat and reef slope, respectively, depending on the composition and distribution of corals and the intergeneric difference of skeletal growth. In response to the rapidly increasing human impacts, coral carbonate production has decreased by 80%―89% at this fringing reef since the 1960s; as a result, the reef accretion rate declined and became lower than the rate of sea level rise. Further development of the Luhuitou fringing reef will switch significantly from lateral extension sea-wards to vertical growth, reflecting a response of coral reef biogeomorphic process to strong human impacts under the background of global sea level rise. In addition, decrease in coral carbonate production reduced CO2 release from this fringing reef. In the future, it is likely that the role played by coral reefs, especially of fringing reefs, in the ocean and even in the global carbon cycle will be modified or weakened by the increasing human impacts. 关键词：珊瑚礁礁边缘边缘现象碳酸盐海洋

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Estimate of carbonate production by scleractinian corals at Luhuitou fringing reef,Sanya,China

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