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学科主题: Geosciences, Multidisciplinary
题名: Coral reefs in the South China Sea: Their response to and records on past environmental changes
作者: Yu, KF
通讯作者: kefuyu@scsio.ac.cn
关键词: coral reefs ; ecology ; environment ; climate ; Holocene ; South China Sea
刊名: SCIENCE CHINA-EARTH SCIENCES
发表日期: 2012
卷: 55, 期:8, 页:1217-1229
部门归属: Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
项目归属: 海洋地质
摘要: This paper reviews both the recent and longer-term (Holocene) ecological history of coral reefs in the South China Sea (SCS). (1) Local ecological monitoring since the 1960s shows that the coral reefs in the South China Sea have declined dramatically, reflecting the rapid decrease of living coral cover and the great loss of symbiotic zooxanthellae. Collectively, this has led to a significant decrease of annual CaCO3 production. Heavy anthropogenic activities and global warming are recognized as major triggers of the observed coral reef degradation. Observations show that the modern coral reefs in the SCS are a source of atmospheric CO2 in summer. (2) Coral reefs of the SCS have been widely used to reveal longer-term environmental variations, including Holocene high-resolution sea surface temperature (SST) and abrupt climate events, millennial-scale El Nio variations, millennial- and centennial-scale sea level oscillations, strong and cyclic storm activities, East Asian monsoon intensities, variation in seawater pH, and recent seawater pollution. (3) Coral reefs of the southern SCS have experienced repeated episodes of bleaching over the last 200 years due to high SST and intense El Nio events; coral reefs of the northern SCS suffered high levels of mortality during several abrupt winter cold-water bleaching events during the middle Holocene warm period. On average, recovery after the middle Holocene cold-bleaching took 20-30 years; recovery following other middle Holocene environmental stresses took approximately 10-20 years. Such findings have significantly contributed to the understanding of the present ecological pressures faced by the coral reefs in the SCS, the histories of Holocene climate/environment changes, and the long-term models of coral reef responses to various past environmental changes.
语种: 英语
WOS记录号: WOS:000307255500001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10323
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
Yu, KF.Coral reefs in the South China Sea: Their response to and records on past environmental changes,SCIENCE CHINA-EARTH SCIENCES,2012,55(8):1217-1229
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