Collaborative Research: Hydrologic-Nutrient Cycle Interaction in Small Undisturbed and Man-Manipulated Ecosystems

合作研究：小型未受干扰和人为操纵的生态系统中的水文-养分循环相互作用

• 批准号: 8807960
• 负责人: Gene Likens
• 金额: $ 88.21万
• 依托单位: Cary Institute of Ecosystem Studies, Inc.
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-11-01 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8807960&HistoricalAwards=false
• 关键词: Collaborative; Research; Hydrologic; Nutrient; Cycle

This research will continue investigations of air-land-plant- water-human interactions in aggrading and disturbed northern hardwood forest ecosystems. Historically, the Hubbard Brook Ecosystem Study has coupled long-term investigation of ecosystem biogeochemistry and forest growth with detailed experimentation, including laboratory and plot-level studies, whole ecosystem manipulations, as well as the development and application of computer models. Studies of precipitation inputs, ecosystem pools and stream outflow will be continued. This long-term biogeochemical research will be integrated with ongoing and proposed process-level studies through the development of proton budgets and analysis of element cycle interactions. Plot-level chemical manipulations using (NH4)2SO4, H2SO4, Na2SO4 and CaSO4 will investigate present-day, anthropogenically-induced changes in hydrogen ion, sulfur, nitrogen and metallic cation cycles. Research on northern hardwood forest ecosystems at Hubbard Brook is a multi-investigator-/multi-institutional effort. Most work will be conducted at the Hubbard Brook Experimental Forest, NH, yet the concepts and processes to be investigated are generally applicable to many types of ecosystems. This research will, as in the past, contribute to the fundamental understanding of forest ecosystems and yield information useful to the better management of their valuable natural resources. The project team is excellent and comprises proven collaborative performers. USDA/Forest Service collaboration is quite positive. Institutional accommodations are first-rate. The Ecosystem Studies Program confidently recommends that this collaborative, four-year continuing award be made.

这项研究将继续调查空气植物 - 水人类相互作用，并干扰了北部硬木森林生态系统。 从历史上看，Hubbard Brook生态系统研究已将生态系统生物地球化学和森林增长的长期研究与详细的实验相结合，包括实验室和情节研究，整个生态系统操纵以及计算机模型的开发和应用。 降水输入，生态系统池和流出流的研究将继续进行。 这项长期的生物地球化学研究将通过质子预算的发展和元素周期相互作用的分析与持续和提出的过程级别研究融合。 使用（NH4）2SO4，H2SO4，Na2SO4和Caso4的图级化学操作将研究当今的，人为诱导的氢离子，硫，氮和金属阳离子周期的变化。 Hubbard Brook的Northern Hardwood Forest生态系统的研究是一项多侵略器/多机构的努力。 大多数工作将在NH的Hubbard Brook实验森林进行，但是要研究的概念和过程通常适用于许多类型的生态系统。 与过去一样，这项研究将有助于对森林生态系统的基本理解，并产生对更好地管理其宝贵自然资源的信息。 项目团队非常出色，包括经过验证的协作表演者。 美国农业部/森林服务协作非常积极。 机构住宿是一流的。 生态系统研究计划自信地建议颁发这项合作的四年持续奖项。