【摘 要】
：
陕北童山濯濯,气候亢旱。土壤为风积黄土,土质为砂质壤土。农民耕地百分之九十系山陵高坡,倾斜由10——60度不等,因之土壤冲刷现象极为严重。加以土地利用之不合理,致土壤结
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陕北童山濯濯,气候亢旱。土壤为风积黄土,土质为砂质壤土。农民耕地百分之九十系山陵高坡,倾斜由10——60度不等,因之土壤冲刷现象极为严重。加以土地利用之不合理,致土壤结构破坏,土壤水分与养料极端缺乏。因而旱灾频仍,产量降低,影响农民生活至钜。所以土壤水份与养料之保持,遂成陕北目前农业上之迫切需要改进的问题。
Tong Shan in Shaanxi Province scape, climate drought. Soil is aeolian loess, soil is sandy loam. Ninety percent of the arable land for peasants is from the high slope of the hill and the slope is from 10 degrees to 60 degrees. As a result, the phenomenon of soil erosion is extremely serious. Irrational use of land, resulting in the destruction of soil structure, extreme lack of soil moisture and nutrients. As a result, frequent droughts and lower output have affected the lives of peasants. Therefore, the maintenance of soil moisture and nutrients has become an urgent need to improve agriculture in northern Shaanxi.
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