The effects of range enclosure on vegetation composition and density in upland grasslands of Iran

摘要：

Introduction Livestock and plants are in a constant interaction at range ecosystems.Overgrazing pressure due to the increment of human population cause a significant reduction in plant growth vigor,reproduction ability and poor establishment of valuable plants which lead to plant composition change and lower density of class Ⅰ category range plants (Brand and Goetz,1986,and Warren et al.1986).

作者: F.Amiri H.Arzani M.Farahpour

作者单位: Faculty Member of Islamic Azad University Busheher Branch.Iran Department of Rangeland Sciences,Tehran University Institute of Range and Forest,Tehran,Iran

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）