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1.技术简介当前我国正在全面实施西部开发战略,并积极推进农业结构调整,政府号召广大西部地区25度以上的坡耕地和干旱、半干旱地区等不适宜耕种的土地,要有计划地全部退下来,并通过经济贴补和其他干预手段,实施种草种树,恢复受损的生态环境。因此,在未来一段时间内将出现大面积退耕地。依据生态适宜性原则,我国西部地区
1. Introduction to Technology At present, China is implementing the strategy of developing the western region in an all-round way and actively promoting the readjustment of agricultural structure. The government calls for land not suitable for cultivation such as arable land, arid and semi-arid lands over 25 degrees in the western part of the vast western region. Down, and through economic subsidies and other interventions, implement the planting of trees and restore damaged ecological environment. Therefore, a large area of returning farmland will emerge in the near future. According to the principle of ecological suitability, western China