绥德试验基地农业生态系统结构优化的研究

Study on the rational structure of agro-ecological system in Suide Experimental Base

摘要: 根据农业生态系统内部种植业和养殖业协调发展的原则，以陕西省绥德试验基地农业生态系统的物质流、能量流和价值流为基础，考虑到土地面积、劳动力(人口)、畜力、社会需求、饲料供给等因子，利用线性规划方法求得种养结合优化方案，优化后的产业结构比优化前的纯效益提高145%，系统综合效益指数提高49.72%。

Abstract: According to the principle of harmonious development of integrated farming system,based on material and energy flow and economic value flow in the agriculture system of Suide Experimental Base,considering factors of land area,labor,livestockpower,social demand and fodder amount in the investigation area, an optimization structure was made by linear programme.The total net profit of farming and animal-husbandry is increased 145% more than that of conventional one,and the system's comprehensive profit index is increased by 49.72%.