Based on the grain production strategy based on farmland management,the data of 950 farmers in 10 provinces(autonomous regions and municipalities)of China,and the method of dividing the land use into scale management,sustainable farming and structural adjustment,the impact and paths of land use on farmers'grain yield per unit area have been analyzed empirically by utilizing ordinary least square method,two-stage least square method and moderating effect model.The research shows that the effect of scale management on grain yield per unit area increased first and then decreased,showing a trend of an inverted"U"shape.Sustainable farming can significantly increase grain yield per unit area while structural adjustment has a significant negative impact on grain yield per unit area.Scale management plays a positive regulating role in the impact of sustainable farming and structural adjustment on farmers'grain yield per unit area.For farmers in different areas with different natural environments and resources,the effects of scale management and sustainable farming on farmers'grain yield per unit area are different.
关键词
土地利用/粮食单产/规模经营/可持续耕作/结构调整
Key words
land use/grain yield per unit area/scale management/sustainable farming/structural adjustment
维普
万方数据