在噪声源周围设立声屏障能够减少噪声对周围环境的污染,对交通噪声则往往通过建造林带来降低噪声的干扰。林带具有较好的降噪效果和较高的生态价值,这已成为人们的共识,并有多人在这方面进行了研究,如姚成(1999)通过对公路两旁林带的降噪效果的实际测量,给出林分降噪的经验公式 Establishing sound barriers around noise sources can reduce the noise pollution on the surrounding environment, and traffic noise is often brought by construction of forests to reduce the noise interference. Belt has better noise reduction effect and higher ecological value, which has become the consensus, and many people have conducted research in this area, such as Yao Cheng (1999) through the roadside noise reduction effect of the actual forest Measurement, given empirical formula of forest noise reduction