皇甫川土壤物理性质对水土流失影响的研究
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Study of the Effect of Soil Physical Properties on Soil and Water Loss in Huangfuchuan Basin
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    摘要:

    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。

    Abstract:

    In lIuangfuchuan basin,thc climate is arid and precipitation is start0. Its wegetation has been destroyed severely. The desert area of land is increasing gradually year by year, and a large number of land can not be utilized for agriculture and forest as well as animal husbandry, The distribution of skeleton soil, for example,rocky soil and sandy soil, surpasses gp percent of the total area in the region. The physical properties of soil are undersirable, such as, coarse texture and the sand content as high as 70 percent of soil weight, and the smaller total porosity of soil. '1 he physical moisture content in profile means only 5-10 precept by weight. It has the poor permeability for sandy rocky soil and easily forms runoff at the time of ra:nstorm,which can lead to overflow of Huangfuchuan ri}'er and a great deal of sedimcpt will be bumped into the Yellow River by flooding water regions of serious soil sediment. In order to and water loss and the main area.Therefore, it is one of the of forming much and coarseprevent soil from eroding, it is the fundamental measures of controlling soil and water loss in Huangfuchuan basin to strengthen biological mea.sures such as planting tree and grass,

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田积莹,雍绍萍.皇甫川土壤物理性质对水土流失影响的研究[J].水土保持通报,1992,(5):2-28,5

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  • 收稿日期:1991-09-19
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  • 在线发布日期: 2014-12-01
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