Grazing impacts on the dynamics of two long lived perennial grasses in tropical Australia

摘要：

Bothriochloa ew artiana ( desert bluegrass) is a long lived perennial grass which is important for the northern Australian pastoral industry, however, little is known of its basic population demography.Interim results from an extensive grazing study indicated that rainfall had a greater impact than grazing pressure on the dynamics of B.ew artiana ( Orr and OReagain 2005) but suggested that a more pronounced grazing impact may emerge with time.This paper reports further data on the continuing impacts of rainfall and grazing on B.ew artiana and also on another long lived perennial grass Chrysopogon f allax (golden beard grass).

关键词： Bothriochloa ew artiana Chrysopogon fallax demography

作者: D.M.Orr P.J.OReagain

作者单位: Dept.Primary Industries and Fisheries,POBox 6014,Rockhampton M ail Centre,Queensland 4702,Australia

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）