| 西沙生态监控区造礁石珊瑚退化原因分析 |
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| 引用本文： | 吴钟解,王道儒,涂志刚,李元超,陈家日,张光星.西沙生态监控区造礁石珊瑚退化原因分析[J].海洋学报,2011,33(4):140-146. |
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| 作者姓名： | 吴钟解 王道儒 涂志刚 李元超 陈家日 张光星 |
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| 作者单位： | 1.海南省海洋开发规划设计研究院,海南 海口 570125;海南大学 海洋学院,海南 海口 570228 |
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| 基金项目： | 国家科技支撑计划——西沙群岛珊瑚礁生态恢复与特色生物资源增殖利用关键技术与示范(2009BAB44B00);中国海洋监测——西沙珊瑚礁监控。 |
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| 摘 要： | 2005-2009年对西沙生态监控区5个站位(永兴岛、石岛、西沙洲、赵述岛和北岛)造礁石珊瑚种类、覆盖度、补充量及其主要环境因子进行了调查.研究结果表明,西沙生态监控区造礁石珊瑚呈现逐年退化趋势,活造礁石珊瑚覆盖率从2005年的65%下降到2009年的7.93%,而死珊瑚覆盖率变化则相反,从2005年的4.70%增加到...
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| 关 键 词： | 西沙 生态监控区 造礁石珊瑚 退化 |
| 收稿时间： | 2010/8/28 0:00:00 |
The analysis on the reason of hermatypic coral degradation in Xisha |
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| WU Zhong-jie,WANG Dao-ru,TU Zhi-gang,LI Yuan-chao,CHEN Jia-ri and ZHANG Guang-xing.The analysis on the reason of hermatypic coral degradation in Xisha[J].Acta Oceanologica Sinica (in Chinese),2011,33(4):140-146. |
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| Authors: | WU Zhong-jie WANG Dao-ru TU Zhi-gang LI Yuan-chao CHEN Jia-ri and ZHANG Guang-xing |
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| Institution: | 1.Hainan Provincial Marine Development and Design Institute, Haikou 570125, China;Hainan University, Haikou 5702282.Hainan Provincial Marine Development and Design Institute, Haikou 570125, China3.Xisha-Nasha-Zhongsha Islands Meteorological observatory, Yongxing Island 573100, China |
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| Abstract: | Species, coverage and recruitment of hermatypic coral and mainly-related environmental factors were investigated at five stations(Yongxing Island, Shidao Island, Xishazhou, Zhaoshu Island and North Island) during 2005-2009.The results show that hermatypic coral has been degraded year by year in Xisha ecological monitoring area.The live hermatypic coral coverage decreases from 65% in 2005 to 7.93% in 2009. In contrast, the dead coral coverage increases from 4.70% in 2005 to 72.90% in 2009.A new coral recruitment also becomes less and less. In 2005 the new coral recruitment is 1.21 ind/m3 but only 0.07 ind/m3 in 2009.Further analysis indicates that the hermatypic coral declines for many reasons in Xisha ecological monitoring area, such as bioerosion, warm water, ocean acidification and overfishing,etc, while outbreaks of the coral-eating crown-of-thorns starfish(Acanthaster planci)are the main reason which causes the hermatypic coral to decline in Xisha ecological monitoring area. |
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| Keywords: | Xisha ecological monitoring area hermatypic coral degradation |
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