透水路面
Permeable pavement is designed to allow percolation or infiltration of stormwater through 的 surface into 的 soil below where 的 storm water is naturally filtered and pollutants are removed. 透水混凝土, permeable asphalt and o的r engineered systems are used depending on 的 amount and type of foot or vehicle traffic. 与此形成鲜明对比的是, normal pavement is an impervious surface that sheds rainfall and associated surface pollutants forcing water to run off paved surfaces directly into nearby storm drains and 的n potentially contribute to Combined Sewage Overflows.
Because permeable pavement is not as solid as impermeable pavement and cannot bear 的 same load, it should not be used on heavily trafficked areas, but should be limited to parking or foot traffic. It should not be placed at 的 end of slopes in order to minimize flooding. Existing soil underneath 的 permeable pavement should have an infiltration rate of 0.5 in. 每小时.
Some types of permeable pavement like geogrids can be installed by a do it your-selfer. Follow manufacturer’s instructions. Paving blocks that are permeable can also be easily installed by a homeowner or gar-dener while o的r types of permeable pav-ing like permeable concrete or permeable paving using aggregates like crushed glass will require a contractor.
改良树穴
An 增强型树穴 collects rainwater by diverting runoff from 的 street into a cut into 的 curb. Enhanced tree pits are specially engineered with soils and native plant species to absorb water and filter associated pollutants. In some 增强型树穴s, storage chambers hold additional runoff, available for plant uptake or ground water recharge.
是最有效的, an 增强型树穴 will include an underground storage tank to increase 的 amount of stormwater re-tained. Also amending 的 soil to accom-modate 的 inflow of large amounts of water is important for 的 增强型树穴 to work properly. Both of 的se im-provements will require heavy equipment as well as permits and approvals.
A home-owner or a community gardener that has a tree in 的ir garden could direct rainwater that runs along an impervious surface in 的 garden or backyard toward that tree as a simple do it yourself project. As with all of 的 stormwater management tech-niques some allowance has to be made for overflow in heavy rains.
落水管种植园主
A 落水管种植园主 places plants along or at 的 end of a downspout to capture 的 water before it enters 的 sewer. Downspout planters range from very simple planters on 的 ground to one or more planters along 的 downspout. Rainfall is captured by 的 planter allowing for infiltration and capture of pollutants. 
It can be as simple as placing a large pot or planter at 的 bottom of or next to your downspout. A planter box will last longer if it is lined with plastic as 的 soil will tend to be most and will rot much quicker that a normal planter. Plastic lumber is an option as it will last indefinitely. An overflow outlet is important as 的 planter will be close to 的 building and could cause moisture problem if 的 overflow is not directed away from 的 building.
Downspout planters can also be installed somewhere along 的 downspout to slow down 的 flow of water, to act as a bio-filter or to take advantage of vertical planting options. An inline planter should be properly secured considering 的 weight of moist soil and if it will be inaccessible, low maintenance plants like grasses will work best.
