食物网分析手段便于我们理解三峡水库水生态系统内部能量和物质复杂的转移转化形式,以及它们对外部干预因素的响应,从而有助于我们设计出科学合理的生态渔业方案,确保系统运行通畅。食物网是生态学中一个重要的理论工具,用以研究生态系统的结构和功能。初级生产者所固定的能量经食物链和食物网传递,转化为各营养层级上的生物生产力,形成了生态系统的生物资源,并对生态系统的产出、服务和动 Food web analytic tools facilitate us to understand the complicated transformation and transformation forms of energy and material in the water ecosystems of the Three Gorges Reservoir and their response to external interventions. This will help us to design a scientific and rational ecological fisheries program to ensure the smooth operation of the system. Food webs are an important theoretical tool in ecology to study the structure and function of ecosystems. The energy fixed by primary producers is transferred through the food chain and food webs into biological productivity at various trophic levels, forming the biological resources of ecosystems and providing an input into the output, services and mobility of ecosystems