论文部分内容阅读
采用人工模拟侵蚀降雨试验，在辽东石质山区坡耕地对影响土壤侵蚀的降雨、土壤含水量、作物盖度、地面坡度诸因子的相互关系进行了研究，得出影响坡耕地径流量因子依次是降雨＞土壤含水量＞坡度＞作物盖度；影响坡耕地冲刷量因子依次是降雨＞土壤含水量＞作物盖度＞坡度。指出在该区坡耕地利用和开发中，应采取科学的规划和管护措施，从而有效地对土壤侵蚀的影响因子进行合理调控。根据试验结果，结合地理信息、气候信息和植物信息，建立了辽东石质山区坡耕地土壤侵蚀数学模型，为该区制定坡耕地水土保持发展规划和科学决策提供了理论依据。
Using artificial simulated rainfall experiment, the relationship between rainfall, soil moisture content, crop coverage and slope of slope affected soil erosion was studied in slope farmland in Liaodong stalagmite area. It was concluded that the factors influencing slope farmland runoff were Rainfall> Soil moisture content> Slope> Crop coverage. The factors influencing the erosion of sloping arable land were rainfall> soil moisture content> crop coverage> slope. It is pointed out that in the utilization and development of arable land in this region, scientific planning and management measures should be adopted so as to effectively control the impact factors of soil erosion. According to the experimental results and the combination of geographical information, climate information and plant information, a mathematical model of soil erosion on sloping arable land in the stalagmite area of Liaodong was set up, which provided a theoretical basis for the formulation of scientific planning and decision-making for soil and water conservation.