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基于Ecopath模型的长江口及毗邻水域生态系统结构和能量流动研究

Study on the Structure and Energy Flow of the Yangtze River Estuary and Adjacent Waters Ecosystem Based in Ecopath Model

投稿时间：2009-02-22

DOI：

中文关键词:长江口及毗邻水域生态能量通道模型生态系统结构能量流动

英文关键词:Yangtze River estuary and adjacent waters mass-balance modeling （Ecopath） ecosystem structure energy flow

基金项目:

作者	单位
林群	农业部海洋渔业资源可持续利用重点开放实验室,山东省渔业资源与生态环境重点实验室，中国水产科学研究院黄海水产研究所,山东青岛，中国海洋大学水产学院,山东青岛
金显仕	农业部海洋渔业资源可持续利用重点开放实验室,山东省渔业资源与生态环境重点实验室，中国水产科学研究院黄海水产研究所,山东青岛
郭学武	农业部海洋渔业资源可持续利用重点开放实验室,山东省渔业资源与生态环境重点实验室，中国水产科学研究院黄海水产研究所,山东青岛
张波	农业部海洋渔业资源可持续利用重点开放实验室,山东省渔业资源与生态环境重点实验室，中国水产科学研究院黄海水产研究所,山东青岛

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中文摘要:

根据２０００年和２００６年秋季长江口及毗邻水域渔业资源和生态环境调查数据，利用ＥｃｏｐａｔｈｗｉｔｈＥｃｏｓｉｍ软件，构建２个时期的长江口及毗邻水域生态能量通道模型，比较分析了三峡工程蓄水前后长江口及毗邻水域生态系统的结构和能量流动特征。模型包含鱼类、虾类、蟹类、头足类、浮游动物、浮游植物、底栖动物、碎屑等１７个功能群，基本覆盖了能量流动的途径。分析结果表明，２００６年秋季长江口及毗邻水域生态系统的总生物量、系统总流量比２０００年秋季有所下降，碎屑链的重要性略有降低；由于低营养级层次渔获物数量的增加，渔获物平均营养级有所下降。２个时期长江口及毗邻水域生态系统的再循环率较低，仍有较高的剩余生产量有待利用，均处于不成熟的发育期。

英文摘要:

The study was based on the investigations of fishery resources and environment of the Yangtze River Estuary and adjacent waters in autumn 2000 and autumn 2006. Using the Ecopath with Ecosim software, the mass - balance models of the Yangtze River Estuary and adjacent waters ecosystem were constructed during the two periods. Based on the two models, the changes of the ecosystem structure and energy flow were compared and analyzed before and after the sluice of the Three Gorges Dam. The models included 17 functional groups covering the main trophic flow of the Yangtze River Estuary and adjacent waters ecosystem, which were fishes, shrimps, crabs ,cephalopod, zooplankton, detritus, phytoplankton, benthos, etc. The results indicated that the total biomass and system throughput of Autumn 2006 was lower than that of Autumn 2000, and the role of detritus in nutrient regeneration decreased. The decrease of mean trophic level of catch may be owing to the catch increase of lower trophic level fishes in autumn 2006. Since the Finn cycling index were lower and there were high surplus production, the Yangtze River Estuary and adjacent waters ecosystem in Autumn 2000 and Autumn 2006 were both in developmental stage.

林群,金显仕,郭学武,张波.2009.基于Ecopath模型的长江口及毗邻水域生态系统结构和能量流动研究[J].水生态学杂志,30(2):28-36.

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