top soil 是不是必要的？

maxbon · 发表于 2013-6-27 13:13

想请教各位一个问题？做花园时,那些黑泥是一定要铺的吗？是不是如果铺石头或人造草坪,是不需要铺黑泥？

catty · 发表于 2013-6-27 13:45

见过有铺的也有没铺的，铺草的话肯定要铺

PPQQ · 发表于 2013-6-27 14:12

本帖最后由 PPQQ 于 2013-6-27 15:58 编辑

The following is from the city's link: http://www.edmonton.ca/for_resid ... aq-residential.aspx
7. Can I use washed rock, decorative rock, or bark chips to bring the land up to final grade? No. If you are placing rock mulch or bark mulch, the clay base (rough grade) should be raised to the final grade level before placing any decorative material. The grade should be raised with clay, topsoil, or compacted “road crush” gravel. This is important for side lot swales.

PPQQ · 发表于 2013-6-27 14:13

所以不铺土，可以用road crush垫高

maxbon · 发表于 2013-6-27 21:41

谢谢各位的信息～！

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