东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (12): 1765-1768.DOI: -

• 论著 • 上一篇    下一篇

海洋物理化学因素对造礁珊瑚生长的影响

杨丽丽;巩恩普;张永利;常洪伦;   

  1. 东北大学资源与土木工程学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-12-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(40972004,40572014);;

Effects of ocean physicochemical factors on growth of hermatypic corals

Yang, Li-Li (1); Gong, En-Pu (1); Zhang, Yong-Li (1); Chang, Hong-Lun (1)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-12-15 Published:2013-06-20
  • Contact: Yang, L.-L.
  • About author:-
  • Supported by:
    -

摘要: 通过对现有资料的分析,研究了环境单因子改变对造礁珊瑚的影响.珊瑚礁发育受海平面控制,形成与海平面动荡相适应的功能骨架.大气CO2浓度升高易引起海水CO23-浓度下降,降低CaCO3各种矿物(文石、方解石等)饱和度,减缓造礁珊瑚石灰化过程,对珊瑚礁生态系统赖以生存的海洋环境构成严重威胁.文石海的高x(Mg)/x(Ca)值不利于古代低镁方解石质四射珊瑚的生长,而对现代文石质的六射珊瑚有利.富营养化水体易诱发共生藻游离出珊瑚宿主,造成珊瑚白化甚至死亡.

关键词: 造礁珊瑚, 海平面动荡, 大气CO2浓度, 海水化学成分, 富营养化

Abstract: Based on existing data, the effect of single factor environmental change on the growth of hematypic coral was investigated. The growth of coral reef is controlled by sea-level so as to form its functional skeleton adaptable to eustatic sea-level fluctuations. Rise in atmospheric CO2 level can decrease the CO32- concentration in seawater and reduce the saturabilities of CaCO3 minerals(mainly the aragonite and calcite), thus slowing the calcification process of hematypic coral and threatening seriously the oceanic environment where the ecological system of growing hematypic coral relies on. The high ratio of x(Mg) to x(Ca) of aragonite sea in the Late Paleozoic was disadvantageous to the growth of low-magnesian calcite rugose coral but, on the contrary, advantageous to the modern aragonite hexacoral. Water eutrophication can easily induce the symbiodic algae to go out of coral polyp host and make the coral albinistic even dead.

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