长江中下游地区典型湖泊摇蚊亚化石-湖水总磷定量模型研究

被引:12
作者
张恩楼 [1 ]
Alan Bedford [2 ]
Richard Jones [3 ]
沈吉 [1 ]
王苏民 [1 ]
唐红渠 [4 ]
机构
[1] 中国科学院南京地理与湖泊研究所
[2] Natural Geographical and Applied Sciences Edge Hill College,Ormskirk L QP,England
[3] Department of Geography University of Exeter,Exeter EX RJ,England
[4] 南开大学生命科学学院
关键词
湖泊; 摇蚊幼虫亚化石; 总磷; 定量转换函数; 长江中下游;
D O I
暂无
中图分类号
Q915 [古动物学];
学科分类号
0709 ; 070903 ;
摘要
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.
引用
收藏
页码:1318 / 1325
页数:8
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