Reinsch Craig T, Admiraal David M, Dvorak Bruce I, Cecrle Chad A, Franti Thomas G, Stansbury John S
Olsson Associates, 1111 Lincoln Mall, Lincoln, NE 68508, USA.
Water Environ Res. 2007 Aug;79(8):868-76. doi: 10.2175/106143007x220545.
Runoff water quality improvement from three yard waste compost erosion control treatments were compared with two conventional treatments and an untreated control on plots of 3:1 slope during two growing seasons, using natural events and simulated rainfall. Runoff volume, suspended solids, nutrients, biomass, turf shear strength, and turfgrass color scale were monitored. The most effective compost treatment, a 5-cm thick blown compost blanket, produced 12.7 times less runoff and 9.8 times less sediment load than a straw mat and silt fence treatment. The compost treatments generated eight times more biomass than the straw mat treatments. Root development was significantly better on the compost treatments based on turf shear strength measurements. Tilled-in compost was not as effective as a compost blanket at reducing sediment loss, particularly before the establishment of grass on the plot. The cost of compost treatments was similar to that of straw mat with silt fence treatments.
在两个生长季节中，利用自然降雨事件和模拟降雨，在坡度为3:1的地块上，比较了三种庭院废弃物堆肥侵蚀控制处理措施与两种传统处理措施以及一个未处理对照的径流水质改善情况。监测了径流量、悬浮固体、养分、生物量、草坪剪切强度和草坪草颜色等级。最有效的堆肥处理措施，即5厘米厚的吹制堆肥覆盖层，产生的径流量比秸秆席和淤泥栅栏处理措施少12.7倍，泥沙负荷少9.8倍。堆肥处理措施产生的生物量比秸秆席处理措施多8倍。根据草坪剪切强度测量结果，堆肥处理措施的根系发育明显更好。翻耕入土的堆肥在减少泥沙流失方面不如堆肥覆盖层有效，尤其是在地块上草皮建立之前。堆肥处理措施的成本与秸秆席加淤泥栅栏处理措施的成本相似。
