湖北省天鹅洲沉积物中色素记录的环境意义

Environment Significance of Swan Lake in Hubei from Pigment Record

湖泊沉积物中色素的含量、种类以及相应的参数是研究湖泊初始生产力和湖泊环境的有效手段之一.通过对天鹅洲沉积物中几种色素指标的综合分析,初步探讨了天鹅洲的环境演化历程.结果表明,天鹅洲故道在形成后近50年来,仍属于较新的环境,浮游植物的多样性有增加的趋势,水质属中富营养型.

Study of pigment from the sediments including its content, variety and relevant parameter is one of the effective tools to research the initialization productivity and environment of lakes. According to the synthetic analysis on a few kinds ofpigrnents, the environmental indication of the pigments was studied and the environmental evolution of the Swan Lake was retrieved. The results indicate that, the Swan Lake was still a relatively new environment, the variety of phytoplankton was in increasing tendency, and water quality had belonged to the type of eutrophication during the latter 50 years.