长白山自然保护区植物群落降噪效果研究

Study on Noise Reduction Effect of Plant Community in Changbai Mountain Nature Reserve

通过对环境噪声实测,对长白山国家级自然保护区中不同海拔的3类不同林型7条林带分别进行降噪效果试验,通过室内数据的整理分析,得出:1林带的减噪效果随水平能见度的增加总体呈下降趋势。2林带宽度越大,降噪效果越明显。3以落叶阔叶林和落叶针叶林为主的林带对白噪声的降噪效果随季节变化差异较大,以常绿针叶林为主的林带对白噪声的降噪效果受季节变化影响最小,降噪效果最稳定。

Through noise measurement, noise reduction effect experiment was conducted on 3 forest types 7 forest belts in different altitudes in Changbai Mountain Nature Reserve, through analysis on interior data, it was concluded that： ①The noise reduction effect of forest with the in- crease of the horizontal, visibility is on the decline as a whole. ②The greater the forest belt width, the more obvious of noise reduction effect. ③ Noise reduction effect of deciduous broad-leaved forest and deciduous conifer dominated forest has significant differences among seasons, the noise reduction effect of evergreen coniferous forest is most stable.