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由于计算出树木对护坡的效果,因而提出了一种减少山崩的方法.把计算机数字的图象程序应用于高空拍照,使树木间隔和山坡凹地能显而易见.从测绘图上不仅能测到地面侵蚀与树木距离的平均系数,而且还能测出树的平均影响范围及由于树木影响避免地表滑动的面积.经研究表明,有3.3%的面积免于产生直接流失,因此树木减少了暴雨危害13.8%左右.如果在10m格网中植树,并且具有100%的成活率,暴雨危害至少可减少70%.因而提出一种测定树木在特定坡度起稳定作用的方法,不需要有关气候和场地资料.
Due to the effect of trees on the slope protection, a method to reduce the landslide is proposed, which can be easily seen by applying the computerized image program to aerial photographs to make tree spacing and hillside depression. The average coefficient of distance from the tree and the average area of influence of the tree and the area of surface sliding due to the influence of the trees.According to the research, 3.3% of the area is free from the direct loss, so the trees reduce the damage of the rainstorm by 13.8% If trees are planted in 10-m grids and have a 100% survival rate, the hazard of torrential rains can be reduced by at least 70%, thus providing a method for determining the stabilizing effect of trees on a particular slope without the need for climate and site data.