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农业生态系统是一个多种复杂因素组成的统一体.它有生物(动物、植物、微生物)和环境条件(光、热、水、气、土等)组成,还包括人类生产活动和社会政治经济条件等.人类的生活和生产活动可以引起生态系统发生变化,而生态系统的变化又对人类生活和生产活动产生重大的影响。了解研究各地的农业生态系统特点,建立附合我国国情的最佳生态系统,获得最大的系统生产力(即输入输出比),充分满足社会对各种农产品日益增长的需要,达到稳产、高产、优质、低耗、,(苍效的日标,是极其重要的任务,步
The agroecosystem is a complex of many complicated factors, including biological (animals, plants, microorganisms) and environmental conditions (light, heat, water, gas, soil, etc.) and also includes human activities and socio-political economy Conditions, etc. Human life and production activities can cause changes in the ecosystem, which in turn have a significant impact on human life and production activities. Understand the characteristics of agroecosystems in different places, establish the best ecosystems to meet the national conditions of our country, obtain the maximum system productivity (ie input-output ratio) and fully meet the growing social needs for various agricultural products, and achieve stable production, high yield and good quality , Low consumption ,, (Cang effective date, is an extremely important task, step