Overgrazing affects arbuscular mycorrhizae diversity and abundance in Patagonian steppe

摘要：

Arbuscular mycorrhizae fungi ( AMF) are critical for survival of most plants in arid ecosystems ( Titus et al., 2002).This also might be true in the case of Patagonian steppe, which faces desertification processes mainly as a result of overgrazing (León y Aguiar 1985).AMF diversity is affected by plant diversity ; if the latter decrease it is expected that the former would do the same ( Johnson et al., 2003).Losses in plant cover and substitution of palatable species by unpalatable ones are overgrazing consequences in the Patagonian steppe.Therefore, the effects of overgrazing on the AMF community were evaluated in the Patagonian steppe.

关键词： overgrazing Patagonian steppe arbuscular mycorrhizae diversity abundance

作者: Natalie von Dudinszky Cabello MN Grimoldi AA Schalamuk S Golluscio RA

作者单位: Cátedra de Forrajicultura Instituto Spegazzini,,UNLP,Argentina Cátedra de Cerealicultura.Facultad de Agronomía,UBA,Argentina Cátedra de Forrajicultura,CON ICET

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）