Rangeland Restoration with Treated Municipal Sewage Sludge
2013; Linguagem: Inglês
10.2134/1994.sewagesludge.c29
ISSN2691-2341
AutoresRichard Aguilar, Samuel R. Loftin, P.R. Fresquez,
Tópico(s)Botany and Plant Ecology Studies
ResumoSurface application of treated municipal sewage sludge can significantly increase vegetation cover and total forage production and reduce runoff in semiarid rangeland. Municipal sewage sludge could become a valuable resource for restoring the vigor of arid and semiarid rangelands. The benefits of municipal sewage sludge as an organic soil amendment to ameliorate degraded rangeland were tested in two separate studies carried out by the USDA-Forest Service in New Mexico. These include sludge application rate study and surface hydrology study. The objectives of the surface hydrology study were to determine if and how changes in vegetation following sludge application influence runoff and surface water quality and to assess the fate of potential sludge-borne contaminants introduced to the environment through the addition of sludge. The hydrologic differences observed between the treated and control plots can be directly attributed to the sludge treatment.
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