Doctoral Dissertation Research: Aspen, Elk and Fire: Ecological Processes and Management Eras in Northwestern Wyoming, 1807-1998

博士论文研究：阿斯彭、麋鹿和火：怀俄明州西北部的生态过程和管理时代，1807-1998 年

• 批准号: 9811080
• 负责人: Lisa Graumlich
• 金额: $ 0.95万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-01 至 2000-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9811080&HistoricalAwards=false
• 关键词: Doctoral; Dissertation; Research; Aspen; Elk

GRAUMLICH, L.J. and HESSL, A.E. This dissertation research will examine the effects of fire, climate variation, intensity of ungulate browsing and management policy (emphasizing fire and wildlife management) on aspen regeneration over the last two hundred years in northwest Wyoming. Forest age structure will be estimated from tree cores collected in a sample stratified according to fire history and elk-browsing pressure. The inclusion of stands that have been similarly affected by climatic fluctuations, but with distinct management histories, will help the PIs to disentangle the influence of these various factors-something previous studies have not done successfully. The research has implications for understanding ecological dynamics as influenced by resource management practices.

GRAUMLICH，L.J.和HESSL，A.E. 本论文的研究将探讨火灾，气候变化，有蹄类动物的浏览和管理政策的强度（强调火灾和野生动物管理）对白杨再生在过去的两百年在西北怀俄明州的影响。 森林年龄结构将估计从样本分层根据火灾历史和麋鹿浏览压力收集的树芯。纳入同样受到气候波动影响但具有不同管理历史的林分将有助于PI理清这些不同因素的影响--之前的研究尚未成功做到这一点。 这项研究对理解受资源管理实践影响的生态动态具有重要意义。