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Does WPC affect soil hydraulic conductivity in a landscape tree box?
Wood-Plastic Composite (WPC) is increasingly used in urban landscaping for its durability and sustainability. However, its impact on soil hydraulic conductivity in tree boxes remains a topic of debate. This article examines whether WPC liners or structures alter water movement in soil, affecting tree health and urban drainage.
Studies suggest that WPC can reduce soil permeability if improperly installed, leading to waterlogging or restricted root growth. Conversely, permeable WPC designs may enhance drainage while providing structural support. Factors like material composition, installation depth, and soil type play critical roles.
For urban planners, balancing WPC's benefits with soil health requires careful design. Testing hydraulic conductivity before and after WPC application is recommended to ensure optimal tree growth and stormwater management. Future innovations in WPC porosity could further improve its compatibility with green infrastructure.
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