Coupling Field, Remote Sensing and Modeling Techniques to Examine Processes at the Deciduous-Coniferous Ecotone in Great Smoky Mountain National Park

耦合场、遥感和建模技术检查大烟山国家公园落叶针叶交错带的过程

• 批准号: 9808989
• 负责人: John Kupfer
• 金额: $ 5万
• 依托单位: University of Memphis
• 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: 1998-09-01 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9808989&HistoricalAwards=false
• 关键词: Coupling; Field; Remote; Sensing; Modeling

KUPFER, J.A., CAIRNS, D.M., and ALLEN, T.R. The study examines pattern and process of the deciduous-coniferous ecotone (DCE) in Great Smoky Mountains National Park. It is predicated on the assertion that changes in ecotone location or form can be used to detect the effects of climate change on plant communities because, at ecotones, many species are essentially at the limits of their ranges. Thus, small changes in climate should lead to a comparatively quick and readily noticeable change in vegetation structure or composition. The research strategy has three components: (1) analysis of remotely-sensed data on vegetation type and condition; (2) field-based observations of forest composition; and (3) modeling of carbon cycles below, at, and above the DCE. Results of this research will provide insight into the nature and dynamics of ecotones as well as being important to understanding potential changes in ecosystems brought about by climate-change scenarios.

KUPFER，J.A.，凯恩斯，D.M.，艾伦，T.R. 本文研究了大烟山国家公园落叶针叶交错带的格局和过程。 它是基于这样一种断言，即生态交错带位置或形式的变化可以用来检测气候变化对植物群落的影响，因为在生态交错带，许多物种基本上处于其分布范围的极限。 因此，气候的微小变化应导致植被结构或组成的相对迅速和容易注意到的变化。 该研究战略有三个组成部分：（1）分析植被类型和条件的遥感数据;（2）实地观察森林组成;（3）模拟DCE之下、之处和之上的碳循环。 这项研究的结果将提供深入了解生态交错带的性质和动态，以及重要的是了解气候变化情景所带来的生态系统的潜在变化。