一随着农村产业结构的调整,林业被作为一项重要的生产内容在平原农区迅速发展起来。在土地利用、劳力、产值等结构上打破了单一农作物种植业的格局,形成了新的农林牧紧密结合的耕作制度和立体农业结构,实现了伸向空间的立体开发,建立了分层利用的多维空间,创造了更高水平的水热条件和物质能量循环再生的生态系统,形成了抗风、抗旱、抗灾的生态环境。这场变革不可 With the readjustment of the industrial structure in rural areas, forestry was rapidly developed as a key productive element in the plain farming areas. In the structure of land utilization, labor force and output value, the pattern of monoculture planting industry was broken, and a tillage system and three-dimensional agricultural structure closely integrated with agriculture, forestry, animal husbandry and animal husbandry were formed, the three-dimensional development extending to space was realized, and a hierarchical utilization Multi-dimensional space, creating a higher level of hydrothermal conditions and material energy recycling ecosystem, forming a wind, drought, disaster-resistant ecological environment. This change can not be