Effects of 10 years of fire and climate variability on perennial grass cover in shortgrass steppe

摘要：

The objective of this study is to examine the effects of 10 years of fire and climate variability on perennial grass cover in shortgrass steppe.The research is part of a long‐term, 18‐year study examining effects of fire in the growing vs.Dormant season at return intervals of 3,6 and 9 years.In general, the response of grasslands to fire seems to depend primarily on pre‐and post‐fire levels of precipitation (Ford,1999).The southwestern United States has experienced drought 9 of the past 10 years, with an extreme drought occurring in 2002.

关键词： fire drought shortgrass steppe Buchloedactyloides Bouteloua gracilis

作者: P.L.Ford

作者单位: USDA Forest Service,Rocky Mountain Research Station,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）