Study on the ecosystem construction of using ecopath model in inland waterway

2018 Asia Conference on Energy and Environment Engineering

能源学;生态环境科学

Zhao, Junjie^1 ; Bai, Jing^1 ; Zhang, Lu^1 ; Wang, Ning^1 ; Shou, Youping^1

Key Laboratory of Environmental Protection Technology on Water Transport, Ministry of Transport, Tianjin Research Institute of Water Transport Engineering, Tianjin

300456, China^1

关键词: Ecological parameters;    Ecopath with Ecosim;    Energy flow;    Net primary production;    research methods;    Respiratory flow;    Trophic level;    Water ecosystems;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/133/1/012026/pdf
DOI  :  10.1088/1755-1315/133/1/012026

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, Ecopath with Ecosim 5.1 software is used to simulate the constructed water ecosystem of inland waterway. According to the characteristics of feeding relationship, the ecopath model of water ecosystem is divided into seven functional groups: phytoplankton, hydrophyte, zooplankton, herbivorous, omnivorous, polychaetes and detritus. By analyzing the important ecological parameters of the ecosystem, such as biomass, biomass / biomass, consumption / biomass, trophic level and ecological nutrient conversion efficiency, the software integrates the energy flow process of the ecosystem, the ratio of the total net primary production and the sum of all respiratory flows is 1.314, it's indicating that the ecosystem is equilibrium. The research method of this paper can be widely used to evaluate the stability of the ecosystem of the domestic river.