Appropriate stocking rate of yak on alpine pastures in the Three Rivers headwater region of the Qinghai-Tibetan Plateau

摘要：

Maximizing sustained livestock production is the major concern of most livestock production systems (Charudutt et al,2001).Overgrazing,a worldwide problem,has been a issue of much deliberation.According to empirical data and statistics from the government,the rangelands of in headwater regions of Qinghai‐Tibetan Plateau,China have been overstocked.Yet, conclusive evidence about its occurrence in this headwaters region is remarkably difficult to find.Therefore,we quantitatively examined : (1) how stocking rates relate to animal production and (2) how actual carrying capacities relate to theoretical carrying capacities.By using simple models,we quantitatively address the relationship between domestic yak productions and stocking rates in this paper to guide yak production on two‐season rotational pastures of the alpine meadow in the Three Rivers headwaters region.

关键词： stocking rate yak production maximum carrying capacity overgrazing Three River headwaters region Qinghai‐Tibetan Plateau

作者: M.Dong X.Q.Zhao Y.S.Ma A.Klein Julia J.J.Shi Y.L.Wang L Sheng S..H.Yang X.D.Sun

作者单位: Qinghai Academy of Animal and Veterinary Sciences,Xining,Qinghai,China Northwest Plateau Institute of Biology,Chinese Academy of Sciences,Xining,Qinghai,China Natural Resource Ecology Laboratory,B226 NESB,Colorado State University,Fort Collins,CO 80523,USA

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）