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长江中下游地区30个典型湖泊表层摇蚊幼虫亚化石-环境数据库研究表明影响该地区湖泊中摇蚊组合的主导因素为营养态梯度．12个水质环境指标的典型对应分析(CCA)揭示总磷为解释摇蚊幼虫亚化石组合变化的最重要的显著性指标,可解释20．1％的摇蚊幼虫亚化石组合变化信息,适于进行定量模型的建立．依据总磷的DCCA分析,利用非线性的多元回归方法,建立了摇蚊幼虫亚化石-湖水总磷转换函数模型．最佳二次次残差提取的WA-PLS模型为摇蚊幼虫亚化石-总磷转换函数推导提供了最高的实测值与推导值的回归相关系数(R2jack=0．76)和较低的推导误差(RMSEPjack0．13)．最后,对模型的推导能力进行了综合评价．该模型的建立为定量研究该地区湖泊富营养化的历史开拓了新途径,并为湖泊环境管理与生态修复提供了科学依据．
The fossils of surface larvae from 30 representative lakes in the middle and lower reaches of the Yangtze River - Environmental Databases showed that the dominant factor affecting the chironomid assemblages in the lakes was the nutrient gradient. A typical correspondence analysis (CCA) of 12 water quality and environmental indicators revealed that total phosphorus was the most significant and significant indicator for the change of the sub-fossil assemblage of chironomid larvae, explaining 20.1% of the changes in the sub-fossil assemblage of chironomid larvae, Establish a quantitative model. Based on the DCCA analysis of total phosphorus, a nonlinear multivariate regression method was used to establish the fossil-fossil-phosphorus transfer function model of chironomid larvae. The WA-PLS model of the best quadratic residual extraction provides the regression coefficient (R2jack = 0.76) and the lower derivation for the derivation of the fossil-TP transfer function of chironomid larvae Error (RMSEPjack0.13). Finally, the derivation of the model is evaluated comprehensively. The establishment of this model opens up a new way to quantitatively study the history of lake eutrophication in the area and provides a scientific basis for environmental management and ecological restoration of lakes.