Your landscape designer will calculate slopes and check soil types to size and plan runoff and drainage control for your situation.
您的景观设计师将计算斜坡，并检查您的具体情况土壤类型的大小和计划径流和排水控制。
2
You can adapt these to both controlrunoff and help planted areas retain water better.
您可以调整这些既控制径流和帮助种植面积积水的更好。
3
It is a critical basis for utilization of rainfall resource and pollution control of runoff in urban area to understand runoff quality and its main influential factors.