An early warning approach for aquatic ecosystems in small urban lakes a case study in Hanyang District,Wuhan City

Abstract

Abstract: The urban lakes are under great pressure of water pollution and degradation of aquatic ecosystems.It is urgent to early warn the changes in the aquatic ecosystem.In this paper,the six lakes in Hanyang District,Wuhan City were taken as examples.The early warning approach developed in this paper was based on the study of ecosystems in and around the lakes,combined with technologies of biological monitoring,biomarker,and contamination diffusion Artificial Neural Networks models and System Dynamics model were applied before the ecosystem early warning system of the lakes in Hanyang District was formed.The early warning approach presented in this paper was mainly consisted of five parts:diagnosis on the aquatic and related ecosystems;the selection of key indicators;simulation of water quality and aquatic ecosystems;simulation results and countermeasures.

Key words: Crocus sativus, Potassium, Expansion of corms, Physiological and ecological effects

CLC Number:

X524

GUO Huaicheng, LIU Yong, DAI Yongli. An early warning approach for aquatic ecosystems in small urban lakes a case study in Hanyang District,Wuhan City[J]. cje, 2004, (4): 175-178.

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