川蔓藻在湖泊水位重建和环境变化研究中的应用  

Application of Ruppiaceae L. to the Study of Lake-level Reconstuction and Environmental Change

作　　者：刘子亭[1] 余俊清[1] 

机构地区：[1]中国科学院青海盐湖研究所西安二部

出　　处：《盐湖研究》2005年第3期29-34,共6页Journal of Salt Lake Research

基　　金：中国科学院青海盐湖所创新前沿项日(CX200302);国家自然科学基金项目(49971074);中国科学院资环创新重大项目(KZCX1-Y-05)资助。

摘　　要：沉水被子植物川蔓藻广泛分布于海湾、泻湖、河口湿地以及内陆湖泊、沼泽、湿地中,是水生动物重要的食物和栖息地,具有改善水质和保护堤岸的作用.由于川蔓藻只能在小于0.5～4m深的浅水环境中生存,因此原地保存在湖泊沉积物中的化石种子可作指示古湖水深的定量指标.该项指标在闭流型湖泊水位重建和气候变化研究中有着不可忽视的重要作用.科学管理川蔓藻,对水体环境的改善、海洋污染的治理和湿地生物多样性下降的缓解具有重要价值.Ruppiaceae L., the rooted aquatic plant, distributes widely in estuarine wetlands, fresh to hypersaline palustrine, and lacustrine wetlands. Most populations inhabit warm, relatively unpolluted, and well lit waters 0.5 - 4.0 m deep where fetches and wave action are not great. Ruppiaceae L. and its detritus provide food and cover for aquatic animals. Ruppiaceae L. and its associated algal community improve water quality, dampen incoming waves, and prevent the erosion of the coastline by the sea. Because Ruppiaceae L. only grows in near-shore area where the water depth is less than 0.5 - 4m, Ruppiaceae L. fossil seeds dropped and in-situ preserved in the sediments can be used to indicate a narrow range of water depth in the past and act as a significant indicator for the reconstruction of closed-basin lake levels and climate Changes Sophisticated waterlevel and salinity management techniques of Ruppiaccae L. are necessary for protecting biologicaldiversity and improving water body quality.

关 键 词：川蔓藻 生态学特征 湖泊水位重建 环保价值 

分 类 号：P593[天文地球—地球化学]