森林是一种重要的植被类型,它对地球上各种自然因素的运动,循环能起有力的作用。在人类生活环境日益恶化的当代,森林对我们周围环境的保障作用,越来越受到重视。但是,如何更好地发挥森林的水源涵养、水土保持、防风固砂、净化大气等方面的公益效能,在我国还是一个未解决的问题。甚至不少地区森林在继续遭到破坏,生态平衡失调,自然环境恶化。为了解决这个问题,我们应当学习各 Forests are an important type of vegetation and play a powerful role in the movement and circulation of various natural elements on Earth. In the contemporary era of deteriorating human living environment, the protection of forests to the surrounding environment is getting more and more attention. However, it is still an unsolved problem in our country how to give full play to the water conservation, soil and water conservation, wind-sand fixation and air purification. Even the forests in many areas continue to be destroyed, the ecological balance is out of balance and the natural environment is deteriorating. In order to solve this problem, we should learn from each