关键词: 粮食主产区, 粮食主产区, 粮食生产, 比较优势, 对策

Abstract: In order to know the effect of different vegetation resume measure on soil physicochemical properties of desertification land , representational vegetation resume measures were chosen such as different plant condition , different mixed forest in Huang Yangtan. Random sample, soil physicochemical properties of different vegetation resume measure were compared . Indicate that Caragana microphylla of artificial vegetable condition is the best measure to resume the soil nutrient , mixed forest is better than pure forest. And the direction was provided for the vegetation resume measure .