Sustainable management of semi-arid rangelands and optimal paddock size-An ecological-economic modelling analysis
Livestock grazing is the most important form of land use in arid and semi‐arid landscapes.Due to harsh climatic conditions,rangeland management requires good ecological knowledge to maintain the pasture in a viable condition.Rangeland scientists have proposed different types of grazing management strategies in order to solve these problems.The basis of many strategies is a rotational grazing scheme : the pasture land is divided into a large number of paddocks,each of which is grazed for a short period,and then is rested for a certain,usually longer,time.The rotational grazing scheme has proven to be a viable strategy in southern Africa.A common explanation for this observation is that rotational grazing prevents selective grazing by putting a high and uniform grazing pressure on the vegetation for a short time (e.g.Savory 1998).To this end,a large number of paddocks with short grazing periods has been recommended by,e.g.,Savory (1998).
semi‐arid rangeland simulation model rotational grazing management ecological‐economic modelling
Jakoby O. Quaas M.F.
Helmholtz Centre for Environmental Research-UFZ,Permoserstr.15,04318 Leipzig,Germany Christian-A lbrechts-Universitat,Kiel,Germany
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）