基于EwE模型的玄武湖水生物操纵模拟  

Simulation of Biological Manipulation in Xuanwu Lake Based on EwE Model

作　　者：王成成 Wang Chengcheng(Shanghai Investigation,Design&Research Institute Co.,Ltd.,Shanghai 200335,China)

机构地区：[1]上海勘测设计研究院有限公司,上海200335

出　　处：《绿色科技》2023年第4期115-119,共5页Journal of Green Science and Technology

摘　　要：使用Ecopath with Ecosim(EwE)构建了玄武湖生态系统模型,探究了玄武湖生态系统特征并针对富营养化问题进行了生物操纵模拟。结果表明:玄武湖食物网结构简单,连接指数(CI)、系统杂食性指数(SOI)、总初级生产量/总呼吸量(TPP/TR)、Finn’s循环指数(FCI)和Finn’s循环平均能流路径长度(FCL)均表明玄武湖生态系统正处于发育阶段;对鲢、鳙、枝角类及桡足类进行了生物操纵模拟,在生物操纵期间蓝藻、绿藻、硅藻相对于操纵前生物量削减百分比分别达到18%、5%、4%,表明生物操纵对富营养化有一定的控制效果。In this paper,Ecopath with Ecosim(EwE)was used to build the Xuanwu Lake ecosystem model.The characteristics of the Xuanwu Lake ecosystem are explored and biological manipulation simulation for eutrophication with this model is conducted.The result showed that the structure of food web in Xuanwu Lake was simple,and the Connectance Index(CI),System Omnivory Index(SOI),Total primary production/total respiration(TPP/TR),Finn's Cycling Index(FCI)and Finn's mean path length(FCL)all indicated that the Xuanwu Lake ecosystem was in the development stage.The biological manipulation of silver carp,bighead carp,Cladocera and copepod was simulated.During the biological manipulation,the biomass of cyanobacteria,green algae and diatoms decreased by 18%,5%and 4%,respectively,compared with that before the manipulation,indicating that the biological manipulation had a certain control effect on eutrophication.

关 键 词：EWE 生物操纵 玄武湖 富营养化 

分 类 号：X171[环境科学与工程—环境科学]