不同剖面构型对土壤肥力性质及作物生长状况的影响

Effects of Different Profile Configurations on Soil Fertility and Crop Growth Influence

摘要: 为了提高秦岭山区荒石山地的土地利用效率和土壤质量，解决土地工程中土壤贫瘠、砾石裸露和水土流失的问题，通过土体有机重构构造不同土壤剖面构型，通过建立模型，构建了不同材料和土层厚度的剖面构型，研究不同构型对土壤肥力性质和作物生长状况的影响，结果表明用细沙作为过渡层对土壤养分提高具有较显著的效果(p < 0.05)，尽管利用粘土作为过渡层对土壤漏水漏肥效果较好，但是玉米生长状况较差。土层厚度对于土壤养分和玉米生长状况影响不显著。因此在土地有机重构中，可以选用细沙作为过渡层，过渡层厚度40 cm即可。

Abstract: In order to improve the land use efficiency and soil quality of the barren mountainous land in the Qinling Mountains, and solve the problems of soil barrenness, bare gravel and soil erosion in the land project, different soil profiles were constructed through soil organic remodeling, and different materials were constructed by building models. The profile of the thickness of the soil layer and the effect of different configurations on soil fertility properties and crop growth status showed that the use of fine sand as a transition layer had a significant effect on the improvement of soil nutrients (p < 0.05), despite the use of clay. As a transition layer, although the use of clay as a transition layer has a good effect on leakage of soil water and fertility, corn growth is poor. Soil thickness had no significant effect on soil nutrient and corn growth status. Therefore, in the organic reconstruction of the soil, fine sand can be used as a transition layer, and the thickness of the transition layer can be 40 cm.