The application of farming system models to the problem of sustainable grasslands management in northern China and Australia
Chinese grasslands suffer considerable pressures from human and livestock populations, with more than 90％ of Chinese grasslands suffering from light to heavy levels of degradation.This is reflected in a decline in the composition of desirable species, increased areas of bare ground, and soil erosion.Allied to this are declining rates of animal productivity with the adoption of high stocking rates, and low household incomes of herders and farmers dependant upon livestock products for their livelihoods.Similar problems also exist in Australian grazing systems, where the use of continuous stocking at high grazing pressures has led to degradation of pasture systems.Changes to grazing management, particularly the adoption of lower stocking rates, may boost animal productivity, achieve higher household income, and reduce grassland degradation.
modelling economics sustainability grasslands livestock
R.Jones D.Michalk D.Kemp J.P.Wu T.Takahashi Z.F.Ma G.Millar
NSW Department of Primary Industries,Forest Road,Orange NSW 2800,Australia Charles Sturt University,Orange NSW 2800,Australia Faculty of Animal Science and Technology,Gansu Agricultural University,Lanzhou 730070,China
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）