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在沙漠地区,风蚀作用可以导致土壤表面破碎,土壤表面的性质不同,破碎的程度也不尽相同。划痕方法在测量土壤表面的比研磨能量上具有较好的效果,使用通用微型摩擦计(UMT)测量沙土、沙壤土、粉沙壤土、壤土,粉沙粘壤土和粉沙粘土6种不同土壤类型的土壤表面相对磨蚀能量和相对表面硬度,发现土壤表面相对硬度对土壤表面相对磨蚀能量有很大的影响。对沙土,沙壤土、粉沙壤土、壤土、粉沙粘壤土和粉沙粘土6种不同类型的土壤表面进行了颗粒碰撞磨蚀试验,结果表明,土壤表面的碰撞磨蚀速率与碰撞颗粒速度的平方成正比、土壤平均颗粒大小的2.6次方成正比,而与土壤表面相对磨蚀能量的1.5次方成反比,与土壤相对硬度的1.7次方成反比。
In the desert, wind erosion can cause the surface of the soil to be broken, the nature of the surface of the soil is different, the degree of fragmentation is also different. Scratch method is better than grinding energy on measuring the surface of soil, and soil micro-tribometer (UMT) was used to measure the contents of sand, sandy loam, silty loam, loam, silty sand and silt clay in 6 different soil types The relative abrasion energy and relative surface hardness of the soil surface show that the relative hardness of the soil surface has a great influence on the relative abrasion energy of the soil surface. The particle collision abrasion test was carried out on six different types of soils, including sandy loam, sandy loam, silty loam, loam, silty sand and silt clay. The results show that the collision and erosion rate of the soil surface is proportional to the square of the collision particle velocity, The average square of the soil is proportional to the 2.6th power of the average particle size, inversely proportional to the 1.5th power of the relative abrasion energy of the soil surface and inversely proportional to the 1.7th power of the soil relative hardness.