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生态农业是我国农业的根本出路和优势所在。在水生生物生态系统中,要采取有利于提高生态效益和经济效益的措施,使生态系统中的物质循环和能量转化向最有利的方向发展,形成有利的生态平衡,建立良性循环,保持良好的经济效益。笔者试图从这一生态学的观点来论述稻田养鱼的生态经济效益。 一、稻田养鱼是优化的生态农业系统 在自然界,任何生物群体与其环境的组合都可称为生态系统,即生态系统在其规模
Ecological agriculture is the fundamental way and the advantage of agriculture in our country. In the aquatic ecosystem, we must take measures conducive to improving ecological and economic benefits, so that the material circulation in the ecosystem and energy conversion in the most favorable direction, the formation of a favorable ecological balance, the establishment of a virtuous circle, to maintain good Economic benefits. The author attempts to discuss the ecological and economic benefits of paddy field fish culture from this ecological point of view. First, the paddy fish farming is optimized ecological agriculture system In nature, any combination of biological communities and their environment can be called the ecosystem, that is, the ecosystem in its size