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农业生产是一个利用太阳辐射能的系统。依靠农田生态系统,提高其对物质与能量的转化效率,就能提高单位面积产量。农田生态系统功能效率的高低与它的结构状况密切相关。因此,研究调节农田生态系统结构是很重要的。因为系统的结构决定着系统的整体功能。从世界农业发展史看,农田生态的结构总是由简单趋向复杂,经营由粗放走向精细,产量则逐
Agricultural production is a system that uses solar radiation. Relying on farmland ecosystems and increasing their efficiency in the conversion of matter and energy can increase yields per unit area. The functional efficiency of farmland ecosystem is closely related to its structural status. Therefore, it is very important to study and adjust the structure of farmland ecosystem. Because the structure of the system determines the overall function of the system. From the perspective of the history of world agricultural development, the structure of farmland ecology has always been from simple to complex, from coarse to fine management, and yield by