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Does WPC affect soil enzyme activity in a landscape tree box?
Wood-Plastic Composite (WPC) is increasingly used in urban landscaping, including tree boxes, due to its durability and sustainability. However, its impact on soil enzyme activity—a critical indicator of soil health—remains understudied. Soil enzymes, such as dehydrogenase and urease, play vital roles in nutrient cycling and organic matter decomposition.
Recent studies suggest that WPC may alter soil microenvironments by affecting moisture retention and temperature regulation. While some research indicates minimal disruption to enzyme activity, others highlight potential inhibitory effects due to leaching chemicals or reduced microbial diversity. The composition of WPC (e.g., polymer types, additives) and installation methods (e.g., drainage design) may further influence outcomes.
For urban planners, balancing WPC's benefits with ecological considerations is key. Long-term monitoring and tailored WPC formulations could optimize tree box performance without compromising soil health. Further research is needed to clarify these dynamics and guide sustainable urban forestry practices.
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