w*s
发帖数: 7227 | | b******o
发帖数: 5644 | | F***Q
发帖数: 6599 | 3
not really, the primary purpose is to slow down rain water to prevent soil
washout. it is called a "rain garden".
if you have lawn, a rain garden can also reduce fertilizer and chemicals
being washed into public water source.
【在 w*s 的大作中提到】
: 这样冰雪不会直接渗透地基？
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