贵州、广西石炭纪晚期生物礁群落生态系统对比

Comparison of the Late Carboniferous Reef Community Ecosystem in Guizhou and Guangxi

为了深入认识石炭纪晚期生物礁的生物和环境因素对礁体发育的影响,通过礁群落生态和栖息环境两个方面,对贵州、广西石炭纪晚期造礁生物群落生态特征、生物因素对礁群落发育的影响、礁体发育背景和礁体建造规模的影响等方面进行对比研究.贵州猴场地区造礁生物群落中关键种优势地位明显,造礁生物生长迅速、统殖能力强,礁体规模大使得生物礁发育较成熟;广西浪平地区点礁中没有明显的关键种和优势种,造礁生物生态特点不突出、造礁能力弱,滩相环境影响显著和礁体规模偏小是其礁体发育差的直接原因.

To better understand the effects of biological and environmental factors of late Carboniferous reefs on organic reef development, through the reef community ecology and environment, comparative study was done with the late Carboniferous ecological characteristics of reef-building communities, effect of the biological factors on reef community development, the reef development background and construction scale in Guizhou and Guangxi. The key species occupied obvious dominance, reef-builders grew rapidly and had a strong colonial ability, and the large-scale reefs, made reefs develop more maturely in Houchang, Guizhou. While in Langping, Guangxi, no obvious key and dominant species appeared, reef-builders were not prominent in their ecological features and poor reef-building ability, the environmental influence of shoal was significant and small-scale reefs were the direct causes of poor development of reefs.