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Living Walls Along Highways to Reduce Noise


(Ryan Ethridge) #1

What if rows of CLUMPING (non invasive) bamboo that were regularly maintained, were placed along the sides of highways as both a way to capture CO2 emissions and as sound barriers in cities instead of walls? Guadua bamboo would do well in our climate region. It is also true that plants absorb noise where wood and concrete walls bounce sound from highways and bamboo being hallow would do even better than other plants. This alternative would significantly reduce the noise of highways for neighborhoods close to them. This bamboo once it becomes too dense, just like any growth ultimately will, could also be lightly harvested and sold by the city for revenue as demands for bamboo rises. Could this, if properly implemented be a feasible way to help the city reach carbon goals? If it did work, could it be done in other cities around the metro, later the state and so forth, as a small help in the ongoing battle against climate change?


(Anthony Hugo) #2

I think it could go a long way to help out in the way of both CO2 pollution and noise pollution. however, I see a problem in introducing a plant species that’s not native to the region, what environmental impact could it have if it were to become an invasive species. I do think it is a viable option that could be worth looking into.


(Ryan Ethridge) #3

Anthony,
A great point that is certainly cause for concern. There are however two points I would raise that most people actually don’t know. First being that not all bamboo is invasive, in fact plenty of species of bamboo are non-invasive. The culms would have to be carefully selected and grown to mass at a nursery before planting on-site, however once a root ball of clumping bamboo is planted, it is like a tree. Its roots will cluster into themselves and only spread down for better water, and will not spread laterally. My second point is that Missouri, on its southern border to Arkansas was once home to the world’s largest bamboo forest. Guadua bamboo is great, it will thrive, it is native, it won’t spread invasively, it will be a great carbon sink, reduce noise, and be aesthetically pleasing.