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皇甫川流域气候干旱、雨量稀少,植被遭受严重破坏,沙化面积逐年扩大,农林牧不能利用的土地面积大,粗骨性土壤,如披砂石土及风沙土等分布面积达60%以上;土壤物理性质不良,质地粗,含沙量高达70%左右,总孔隙度少、自然含水量低、平均为5%~10%。披砂石土渗透性差,遇暴雨易发生径流,导致河水瀑涨流急,携带大量粗泥沙流入黄河。因而该区水土流失严重,是多沙粗沙主要产区。为此,加强生物措施,种树种草,是皇甫川流域水土保持综合治理的根本措施。
Huangfuchuan basin arid climate, scarce rainfall, vegetation suffered serious damage, desertification area expanded year by year, large areas of land can not be used by agriculture, forestry, animal husbandry and gravel soil, such as palygorskite and aeolian sand distribution area of more than 60%; soil Poor physical properties, coarse texture, sediment concentration as high as 70%, less total porosity, low natural water content, with an average of 5% to 10%. Phi sandy soil permeability is poor, in the event of heavy rainfall prone to runoff, resulting in raging river flows, carrying a large amount of coarse sediment into the Yellow River. Therefore, the serious soil erosion in this area is the main producing area for sandy and coarse sand. To this end, to strengthen biological measures to plant trees and grass is the fundamental measures of comprehensive management of soil and water conservation in Huangfuchuan watershed.