LTREB: Hydrologic-Nutrient Cycle Interaction in Small Undisturbed and Human-Manipulated Ecosystems

LTREB：小型未受干扰和人类操纵的生态系统中的水文-养分循环相互作用

• 批准号: 0315211
• 负责人: Gene Likens
• 金额: $ 45万
• 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: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0315211&HistoricalAwards=false
• 关键词: LTREB; Hydrologic; Nutrient; Cycle; Interaction

The goal of this study is to continue to collect data to add to the unique, long-term (39 years) record of the chemistry of atmospheric deposition (including rain, snow, dry deposition) of the stream, lake and ground water in the Hubbard Brook Valley, New Hampshire. These data will be used to evaluate the biological and chemical response to, and recovery from, disturbances such as acid rain, forest cutting, ice storms, and experimental manipulations of entire watersheds. The long-term record of duration of ice-cover on Mirror Lake provides an important monitor of global climate change. Questions that will be addressed with these data over the next 5 years fall into two major categories: 1) how does the Hubbard Brook forest and ecosystem respond to disturbances including acid deposition, climate change, and road salt pollution?, and 2) how quickly to different aspects of this ecosystem respond to, and recover from, these disturbances? Broader impacts of this study extend to education, outreach, and the formulation of national environmental policy. The long-term records generated provide a necessary perspective to decision makers wrestling with solutions to major environmental issues. This long-term research program also provides a unique education and training opportunity for undergraduate students. Local middle-school classes use data from this study, and the interaction with wider school groups will be facilitated by the 'Education Resources' site on the Hubbard Brook Ecosystem Study web page.

这项研究的目标是继续收集数据，为新汉普郡哈伯德·布鲁克山谷的溪流、湖泊和地下水的大气沉积(包括雨、雪、干沉积)的独特的长期(39年)记录增添内容。这些数据将被用来评估对酸雨、森林砍伐、冰暴和整个流域的试验性操作等干扰的生物和化学反应及其恢复。镜湖冰盖持续时间的长期记录为全球气候变化提供了重要的监测手段。这些数据将在未来5年解决两大类问题：1)哈伯德溪森林和生态系统如何应对包括酸沉积、气候变化和道路盐分污染在内的干扰？2)生态系统的不同方面对这些干扰做出反应并从中恢复的速度有多快？这项研究的更广泛影响延伸到教育、外展和国家环境政策的制定。产生的长期记录为努力解决重大环境问题的决策者提供了必要的视角。这项长期的研究计划也为本科生提供了独特的教育和培训机会。当地的中学班级使用这项研究的数据，与更广泛的学校群体的互动将通过哈伯德·布鲁克生态系统研究网页上的“教育资源”网站来促进。