在徂徕山经济林营建中 ,分别不同坡度采用了窄梯田、水平阶和穴状整地方法 ,并对不同整地方法的蓄水保土效果进行了观测。结果表明 :窄梯田、水平阶整地方法与穴状整地方法相比 ,土壤容重分别降低12 .1%和 10 .8% ,总孔隙度分别增加 12 .6%和 10 .3% ,土壤含水量分别提高 66.7%和 58.7% ,地表径流量分别减少 85.0 %和 71.0 % ,侵蚀深度分别减少 91.6%和 89.3%。 In the construction of Dala Mountain economic forest, the methods of narrow terraces, horizontal steps and cave-shaped earth preparation were adopted respectively for different slopes, and the water and soil conservation effects of different land preparation methods were observed. The results showed that the soil bulk density decreased by 12.1% and 10.8%, and the total porosity increased by 12.6% and 10.3% Respectively, increased by 66.7% and 58.7% respectively. The surface runoff decreased by 85.0% and 71.0% respectively, and the erosion depth decreased by 91.6% and 89.3% respectively.