Researchers have found that street trees protected by guards to prevent trampling of surrounding soil absorb runoff water six times faster than trees without. Placing more tree guards could help take pressure off city sewer systems to keep up with wastewater and storm runoff.

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Researchers have found that street trees protected by guards to prevent trampling of surrounding soil absorb runoff water six times faster than trees without. Placing more tree guards could help take pressure off city sewer systems to keep up with wastewater and storm runoff.