广西田林县石炭纪礁内海百合生态功能分析  

The Ecological Function of Crinoid in the Carboniferous Reefs in Tianlin,Guangxi

作　　者：陈晓红[1] 巩恩普[1] 王铁晖[1] 关长庆[1] 张永利[1] 杨大勇[1] 王会敏[1,2] 

机构地区：[1]东北大学,沈阳110819 [2]辽宁工程技术大学,辽宁阜新123000

出　　处：《地质论评》2013年第3期446-453,共8页Geological Review

基　　金：国家自然科学基金项目(编号40972004;41202018);中央高校基本科研业务经费项目(编号N110601001;N100601002;20110042120043)共同资助的成果

摘　　要：本文以石炭纪的后生动物格架礁为例,从礁体生长过程和群落竞争关系的角度,对赋存于造礁生物群落中的海百合与造架珊瑚之间的关系,以及其在礁体发育过程中的作用进行详细探讨,揭示了礁生态系统内的生物因子之间的关系。研究发现:在礁体发育初期,以海百合为主的群落是造架珊瑚定殖的初始条件;在礁体的生长过程中,海百合与造架珊瑚之间存在一种受环境控制的竞争关系,两者在数量上呈现此消彼长的关系。当环境变化导致造架珊瑚死亡,礁体停止生长,海百合仍存活并不间断地为礁体提供沉积物,对已停止发育的珊瑚格架起到覆盖作用,从一定程度上保护了礁体。In this paper, the metazoan framing reef of Carboniferous is taken as an example The relationship between crinoids and frame building corals in reef communities and the function of crinoids in reef building process are discussed according to reef growth and community ecological interactions It demonstrated a relationship among the biological factors in reef ecosystem It is found that the crinoids dominating communities contribute the initialization of corals in primary stage of reef development; while in reef building process, an environment controling competition is developed between crinoids and frame building corals, which leads to an increase in one and a decrease in the other in biomass Environmental changes resulted in the death of corals and the break of reef growth, leaving only crinoids, and competition disappeared The crinoids provided bioclasts for the reef continually, which covered the coral reef framework and protected the reef to some degree .

关 键 词：广西 石炭纪 海百合 珊瑚礁 

分 类 号：Q915.2[天文地球—古生物学与地层学]