明尼苏达州警告说,排水沟中的叶子会损害水质,并会敦促堆肥或粘土。 Minnesota warns that leaves in storm drains harm water quality and urges composting or mulching.

明尼苏达州的落叶一旦冲进下水道和水道,分解会消耗氧气并危害水生生命,则会降低水质。 Fallen leaves in Minnesota can degrade water quality when they wash into storm drains and waterways, where decomposition consumes oxygen and harms aquatic life. 分解叶的过量养分也会导致藻类开花。 Excess nutrients from decomposing leaves can also contribute to algae blooms. 政府官员敦促居民堆肥树叶或将树叶用作泥浆,而不是将他们吹入街道或下水道,以保护当地水体。 State officials urge residents to compost leaves or use them as mulch instead of blowing them into streets or storm drains to protect local water bodies.