Impacts of grazing management on cattle distribution and non-point source pollution from pastures in the central United States
Introduction There are concerns that cattle tend to congregate in riparian areas which are highly susceptible to environmental damage,resulting in impaired water quality from stream bank erosion and manure deposition (CAST,2002).Few studies have evaluated the effects of grazing management on water quality in the humid Midwestern region of the USA.Climate,topography,forage species,and management practices may influence animal behavior,as it relates to use of riparian areas and the subsequent impacts of grazing on stream bank erosion and water quality.
grazing cattle behavior water quality GPS
M.Haan J.Russell D.Bear D.Morrical
Iowa State University,Dept.of Animal Science,337 Kildee Hall,Ames,IA,USA 50011
国际会议
呼和浩特
英文
2008-06-29(万方平台首次上网日期,不代表论文的发表时间)