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林业在国民经济中的地位很重要。我们都知道,森林多的地方,多云、多雾、多雨,气候潮湿,雨水充沛,可以防止旱灾。同时,森林又能防止水灾。一场大雨下来,大约百分之三十的雨水保留在林地里,其余百分之七十须经过落叶、苔藓和土圵的过滤,才缓缓地流出,这样,就保持了地面表土,又防止了洪水泛滥。据有的科学家统计,如果森林面积占土地总面积百分之二十九,可大大减少水、旱等自然灾害。森林可以减轻风沙。农田周围种植防护林带,农作物的产量可以大幅度增长。森林的主要产品木材,是工业建设的重要材料和原料。随着我国加快四个现代化的步
The status of forestry in the national economy is very important. We all know that the forest is rich with cloudy, foggy, rainy, humid and rainy weather to prevent drought. At the same time, forests can prevent floods. About 30% of rainwater remains in the woodlands after a heavy rain. The remaining 70% must be filtered through leaves, moss and soil before it flows slowly. In this way, the surface soil and Prevent flooding. According to some scientists, if forest area accounts for 29% of the total land area, natural disasters such as water and drought will be greatly reduced. The forest can reduce wind and sand. Planting shelterbelt around farmland, the output of crops can be greatly increased. Wood, the main product of the forest, is an important material and raw material for industrial construction. With our country accelerating the pace of the four modernizations