SGER: Patterns and Mechanisms of Community Recovery Following Severe Fire in the Long Island Pine Barrens

SGER：长岛松林严重火灾后社区恢复的模式和机制

• 批准号: 9634664
• 负责人: Jessica Gurevitch
• 金额: $ 3万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-05-15 至 1997-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9634664&HistoricalAwards=false
• 关键词: SGER; Patterns; Mechanisms; Community; Recovery

Gurevitch DEB-9634664 This study will investigate the critical initial phase of regeneration on the Long Island Pine Barrens following a fire in August 1995 which burned almost 7,000 acres. Pine barrens are well-studied systems, but little is known about the conditions which lead to pine or oak dominated communities in the barrens. It is anticipated that events in the early years following the fire will be crucial in determining community composition. Experiments will be established which investigate the relative importance of biotic and abiotic factors and how these factors interact. Particular attention will be paid to the importance of seed and seedling predation by small mammals and competition among tree seedlings in determining the trajectory of revegetation of the pine barrens following a catastrophic fire. Revegetation of the dwarf pine plains, a globally rare ecosystem located within the Long Island pine barrens, will be compared with that of the burned (full stature) pine barrens. Data on the response of dwarf and normal pine barrens to severe following long-term fire suppression will help our assessment of fire management options, including controlled burns, for pine barrens newly protected by the Pine Barrens Protection Act of 1995.

这项研究将调查1995年8月大火烧毁近7000英亩后长岛松林再生的关键初始阶段。人们对松荒地进行了充分的研究，但对导致松树或橡树在荒地上占主导地位的群落的条件知之甚少。预计火灾后最初几年的事件将对确定社区构成至关重要。将建立实验来研究生物和非生物因素的相对重要性以及这些因素如何相互作用。将特别注意小型哺乳动物对种子和幼苗的捕食以及树苗之间的竞争在确定灾难性火灾后松树荒地植被恢复轨迹方面的重要性。矮松平原是一个全球罕见的生态系统，位于长岛松树荒地，将与燃烧（全高）松树荒地的植被进行比较。关于矮松林和正常松林在长期灭火后对严重火灾的反应的数据将有助于我们评估1995年《松林保护法》新保护的松林的火灾管理方案，包括控制燃烧。