高原地区循环农业发展模式构建与分析

Construction and Analysis of a Circular Agriculture Development Model for Alpine Regions

高原地区生态环境脆弱,水土流失严重,农业发展水平较为落后,循环农业进展缓慢,为推动农业发展,降低农业污染对生态环境的影响,需要针对当地环境气候探究一种全新的高原种养循环发展模式.本文结合高原丘陵地区气候特点,以棚室养殖形式为基础构筑种养循环一体棚模式,探索了生猪的立体养殖途径,节约了养殖空间和土地成本,减小了系统内物质能量交流的距离,使种养循环高效运行,将种植、养殖和农业废弃物处理有机结合在一起,促进了三者的联动耦合效应.通过对种养循环一体棚模式进行价值流分析,其经济产投比为1.48,成本利润率在47.89%左右,属于高产出的循环农业发展模式,模式投资回收期为2.98年,投资回收期较短,具有较强抗风险能力和推广意义.

The ecological environment in alpine regions is fragile,soil erosion is serious,and the level of agricultural development is relatively backward.The progress of circular agriculture is slow.In order to promote agricultural development and reduce the impact of agricultural pollution on the ecological environment,it is necessary to explore a new high-altitude cultivation and breeding cycle development model based on the local environmental climate.Taking into consideration the climate characteristics of the hill regions on a plateau and based on the shed farming mode,an integrated cultivation and crop shed is developed in this study to investigate a new path for three-dimensional breeding of swine so as to save breeding space and land cost,reduce the distance of material and energy exchange in the system,make the breeding cycle operate efficiently,closely combine planting,breeding and agricultural waste treatment,and promote the linkage and coupling effect of the three.The results of value stream analysis show that the integrated cultivation and breeding shed model has an economic output-to-investment ratio of 1.48 and a cost profit rate of about 47.89%,the payback period of the model investment is 2.98 years,and the payback period is short,indicating that this model has strong anti-risk ability and,therefore,is recommended for extension.promotion significance.