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提高春季融雪期土壤的透水性是现代土壤保护耕作学的主要任务之一.甚至这一问题的部分解决,也可在很大程度上减轻雪水侵蚀带来的灾害,进而提高农作物的产量.冻土的透水性首先取决于土壤活动透水层的孔隙度和孔隙被冰堵塞的程度.强化对土壤的疏松,如增加翻耕次数和深度来增加土壤的孔隙度可提高冻土的透水性和减少地面雪水径流.苏尔玛契对大量材料分析后得出结论说,翻耕深度每增加一厘米,可减少径流量0.8——4.0毫米..经过测定,从减少总径流量的角度看,最有效的翻耕深度为27——30厘米.
Improving the water permeability of spring soil in the snowmelt period is one of the main tasks in modern conservation tillage.Even the partial solution of this problem can also reduce the disasters caused by snow erosion to a great extent and increase the yield of crops. Permeability of frozen soils depends firstly on the porosity of the active aquifuge and the degree of pore clogging by the ice.Improving the loosening of the soil, increasing the number and depth of the tillage to increase the porosity of the soil improves the perviousness of the permafrost Reduce the snow surface runoff.Surmac analysis of a large number of materials concluded that every additional one centimeter plowing depth can reduce the runoff of 0.8 - 4.0 mm .. After determination, from the perspective of reducing the total runoff , The most effective plowing depth of 27 - 30 cm.