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当前位置: 首页 > 文章 > 京杭运河淮安段天然芦苇群落的消风减噪效应 中国水土保持科学 2012,10 (4) 108-112
Position: Home > Articles > Wind and noise reduction effects of natural reed communities along the Beijing-Hangzhou Grand in Huai'an Science of Soil and Water Conservation 2012,10 (4) 108-112

京杭运河淮安段天然芦苇群落的消风减噪效应

作  者：
李冬林;张文豹;金雅琴;周军
单  位：
南京滨江公园管理有限公司;金陵科技学院园艺学院;江苏省林业科学研究院
关键词：
河岸带;芦苇群落;消风减噪效应;京杭运河
摘  要：
植物群落是河岸带湿地的重要组成部分,对河流护坡生态系统的改善发挥着重要作用。通过实地调查和测定研究京杭运河淮安段天然芦苇群落对风速、噪音的影响。结果表明:与无植物对照地相比,有芦苇分布的背风面风速变小,噪音降低,其日变化也呈现一定变异。不同芦苇群落由于宽度及密度等结构特征的差异其作用强度明显不同。密集芦苇群落和中密芦苇群落的消风减噪效应明显好于稀疏芦苇群落,日平均消风率分别为63.95%和66.25%;日平均减噪率分别为9.81%和6.13%。气流与声波穿越苇群后,在苇群内部形成明显的低风弱噪区,但越过苇群后二者呈现不同的变化曲线。通过苇群的风速变化拟合方程为:y1=-0.000 5x3+0.033 6x2-0.542 8x+2.741 6(R2=0.821 6);通过苇群声级变化的拟合方程为:y2=-0.001 2x3+0.080 6x2-1.536 2x+65.09(R2=0.845 2)。芦苇群落对航道行船具有明显的抵风消浪与消音降噪功能,是一种值得保护和应用的河岸带生态护坡模式。
译  名：
Wind and noise reduction effects of natural reed communities along the Beijing-Hangzhou Grand in Huai'an
作  者：
Li Donglin1,Zhang Wenbao2,Jin Yaqin3,Zhou Jun3(1.Forestry Academy of Jiangsu,211153,Nanjing;2.Nanjing Binjiang Park Manage Limited Company,210019,Nanjing; 3.Department of Horticulture Jinling Institute of Technology,210038,Nanjing: China)
关键词：
riparian zone;reed communities;reducing wind and noise;the Beijing-Hangzhou Grand
摘  要：
As an important part of swamp along riparian zone,reed communities play the vital role in improving slope ecological environment.By Actual investigation and measurement,effects of natural reed communities on wind and noise along the Beijing-Hangzhou Grand in Huai'an were studied.The results showed that wind speed at the lee of communities reduced,noise level decreased evidently in comparison with the control(no reed),the change of wind and noise in one day had some difference too.The effects differed between different reed communities types due to their diversity in density and width.Effects of dense and mid-dense communities on wind were superior to sparse communities,average wind reduction rates of dense and mid-dense communities in one day were 63.95% and 66.25% respectively;and their average noise reduction rates in one day were 9.81% and 6.13% respectively.When air flow and sound wave went through reed communities,an evident weak area of wind and noise were formed among communities,but they showed different change curves after them passed through the communities.The change of wind speed went through reed communities could be described: y=-0.000 5x3+ 0.033 6x2-0.542 8x+2.741 6(R2=0.821 6);and the change of sound level went through that could be simulated with equation: y =-0.001 2x3+0.080 6x2-1.536 2x+65.09(R2=0.845 2).The reed communities had obvious reducing effects on wind and noise,which was helpful to sailing,so it is a kind of ecological slope mode which is worth protecting and applying along riparian zone.

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