第四纪环境重建的良好代用指标--有壳变形虫记录与古生态学研究进展  

An Excellent Indicator for Quaternary Paleoenvironmental Reconstructions—Advances in the Study of Testate Amoebae(Thecamoebians,Arcellacean)

作　　者：秦养民[1] 谢树成[1] 顾延生[1] 王军霞[1] 周修高[1] 

机构地区：[1]中国地质大学生物地质与环境地质教育部重点实验室

出　　处：《地球科学进展》2008年第8期803-812,共10页Advances in Earth Science

基　　金：国家杰出青年科学基金项目“类脂物分子记录的长江中游2万年以来的环境变迁”(编号:40525008);中国博士后科学基金项目“近代人类活动对江汉平原浅水型湖泊湿地生态环境的影响”(编号:2005038555);中国地质大学项目“地学类研究生创新中心”(编号:C-0611)资助

摘　　要：有壳变形虫是一类广泛分布在淡水潮湿环境中的根足纲原生动物,具有较窄的生态幅、较短的生命周期,对环境变化敏感等特点,因此沉积物中保存的有壳变形虫化石可以提供高分辨率的环境信息。有壳变形虫化石在古湖泊学与人类活动、古水文、古温度、第四纪海平面变化的定量重建等方面具有独特而重要的研究价值。在欧洲和北美开展的大量研究已证实有壳变形虫是古环境变化的有效指示器。我国地域辽阔,生境多样,无论是开展现代有壳变形虫的生态学研究,还是沉积物中有壳变形虫记录的古环境重建,都有巨大的研究潜力。Testate amoebae （Thecamoebians, Arcellacean） are a kind of worldwide distributed rhizopoda protozoan, which are living in wet and freshwater environments. Due to their narrow niches, short lifecycle and being sensitive to environmental changes, the abundant testate amoebae fossils in sediments might provide high-resolution paleoenvironmental information. Sedimentary testate amoebae are velT useful in quantitative reconstruction of sea level changes, paleohydrology, and paleoclimate, which are mainly in the studies of paleolimnology and human activities. Profound researches carried out in European and North American countries have demonstrated that testate amoebae are excellent indicators for paleoenvironmental changes. The large climatic gradient and diversity of habitats in China are ideal for the studies of testate amoebae biogeography, ecology, and paleoenvironmental reconstructions.

关 键 词：有壳变形虫 第四纪 沉积物 环境代用指标 古生态学 

分 类 号：P534.63[天文地球—第四纪地质学] Q913.85[天文地球—古生物学与地层学]