Catastrophic Disturbance, Patch Dynamics and Recovery in Old-Growth Forest
古老森林的灾难性干扰、斑块动态和恢复
基本信息
- 批准号:8906135
- 负责人:
- 金额:$ 10万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:1989
- 资助国家:美国
- 起止时间:1989-08-01 至 1991-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The occurrence of a Class F4 "devastating tornado" in the old-growth forest of the Tionesta Scenic Area provides a unique opportunity to study the effects of catastrophic wind disturbance on forest regeneration. Such events, although critical to the organization of mesic broadleaved forest, have been studied only rarely, particularly in old-growth forest. It is proposed that castastrophic wind disturbance in old-growth forest should produce much patchiness, which will have a lasting effect on regeneration. The patchiness at several scales, including the previously unstudied fine scale on which plants become established and first interact will be measured. How the patterns of patches change will be determined in close spatial and temporal detail and their biological significance, using both environmental measurement and experimental modification of patches will be evaluated. Although the details of patchiness and regeneration are likely to be unique to each disturbance and site, this research will provide a mechanistic basis for generalization about catastrophic disturbances.
此次天内斯塔景区老树林发生F4级“破坏性龙卷风”,为研究灾害性风扰对森林更新的影响提供了难得的契机。这类事件虽然对中生阔叶林的组织至关重要,但很少有人研究,特别是在古老的森林中。提出了老树林风生干扰会产生较多的斑块,对更新有持久的影响。将测量几个尺度上的斑块,包括以前没有研究过的植物在其上建立和第一次相互作用的精细尺度。将使用环境测量和斑块的实验修改来评估斑块的模式是如何变化的,以密切的空间和时间细节确定它们的生物学意义。虽然斑块和再生的细节可能是每个干扰和地点独一无二的,但这项研究将为灾害性干扰的泛化提供一个机制基础。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Steward Pickett其他文献
Steward Pickett的其他文献
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