“封山育林”好包头市大面积开展封山育林已有30年历史,面积达58000hm2,其中封育较早的固阳县白彦沟林场冯师付沟,通过封育森林覆盖率已达50%,形成乔灌草结合良好的天然植被,封育较晚的银号乡铁匠沟,森林覆盖率也已达30%,形成以灌木为主的良好植被,局部地区还有大片山杨萌生,树高达5m,根据1987～1991年有关试验表明:封山育林明显好于人工造林。在降雨较少的包头地区,封育年限10年左右,方可成林或接近成林,一旦成林后林相良好,乔灌草自然搭配且具有明显的水土保持作用。 “Closing Hillsides to Facilitate Afforestation” is a good area for large-scale mountainous areas in Baotou to carry out the principle of closing hillsides and afforesting forests for 30 years and covering an area of ​​58000hm2, of which Feng Shi Fugou was closed at Baixiangou Forest Farm in Guyang County earlier. The forest coverage rate has reached 50% Grass combined with good natural vegetation, closure later Silver Township blacksmith ditch, the forest coverage rate has reached 30% to form a good shrub-based vegetation, in some areas there are large mountains Yang Mengsheng tree up to 5m, according to From 1987 to 1991, the experiments showed that closing hillsides for afforestation was obviously better than artificial afforestation. In less rainfall Baotou area, the incubation period of 10 years or so, before the forest or close to the forest, once the forest after the forest is good, with natural grass and shrubs and has obvious soil and water conservation.