乌审旗地区风沙大、干旱、土层薄,下层是粘重的“羊脑泥”和“鸡粪土”。过去,这里植树采用一般方法,存在着许多缺点。如1956年栽的树有30％小苗根被风吹露出来,冬季植树坑内积雪的仅有7％。因此,现在把挖坑植树的新方法介绍一下:在挖植树坑时,把上层肥土放在坑 Wushenqi area windy sand, drought, thin soil, the lower is sticky “sheep brain mud” and “chicken manure.” In the past, planting trees here using the usual method, there are many shortcomings. For example, in 1956, 30% of the seedlings rooted in the wind were exposed by the wind, and only 7% of the snow in the trees was planted in winter. Therefore, now introduce the new method of digging a tree planting: when digging a tree pit, put the upper soil on the pit