ETBC Collaborative Research: Feedbacks between nutrient enrichment and intertidal sediments: erosion, stabilization, and landscape evolution

ETBC 合作研究：营养物富集和潮间带沉积物之间的反馈：侵蚀、稳定和景观演化

• 批准号: 0924287
• 负责人: Sergio Fagherazzi
• 金额: $ 89.71万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0924287&HistoricalAwards=false
• 关键词: ETBC; Collaborative; Research; Feedbacks; between

For more than three decades, the impact of anthropogenic nutrient loading in coastal ecosystems has been a major concern of scientists, coastal managers, and the public. Nutrient enrichment leads to a variety of negative ecosystem consequences including increased intensity, duration, and frequency of phytoplankton blooms, hypoxic and anoxic events, increased macroalgae blooms, losses of fish and shellfish habitat, decreased benthic diversity, and loss of eelgrass beds. Remarkably, little work has been done in intertidal areas, and very few studies have addressed the effects of nutrient enrichment on the coastal landscape or how changes in biogeochemical cycles can modify the coastline by promoting erosion, accretion, and shoreline evolution. This research determines the impact of anthropogenic nutrient loading on tidal flats and salt marshes at the Plum Island LTER site, Massachusetts. State-of-the-art field and laboratory techniques work will be used. Quantitative measurements of a wide variety of field parameters will be incorporated into coupled numerical models that will be used as a tool for examining impacts to the landscape and ecosystem over longer-time scales and at different locations. Results of the work will be generalizable and widely applicable to shallow coastal landscapes anywhere in the world. Broader impacts of the work include providing important projections of coastal erosion and wetland assessments to land managers, integration of research and education, training of significant numbers of undergraduates and a postdoc, and support of an early career researcher.

在过去的三十多年中，人为养分在沿海生态系统中的影响一直是科学家，沿海经理和公众的主要关注点。养分富集会导致各种负面生态系统后果，包括浮游植物盛开的强度，持续时间和频率增加，缺氧和缺氧事件的频率增加，大量藻类的绽放增加，鱼类和贝类栖息地的损失，减少的纤维化植物多样性以及e伊尔草床的损失。值得注意的是，在潮间带上很少的工作，很少有研究解决了养分富集对沿海景观的影响，或者生物地球化学周期的变化如何通过促进侵蚀，积聚和海岸线进化来改变海岸线。这项研究确定了马萨诸塞州梅花岛莱斯特（Plum Island Lerter）遗址的潮汐平坦和盐沼的影响。将使用最先进的现场和实验室技术工作。对各种场参数的定量测量将被合并到耦合的数值模型中，这些模型将用作检查对景观和生态系统在长时间尺度和不同位置的影响的工具。这项工作的结果将是可推广的，并广泛适用于世界上任何地方的浅海景观。这项工作的广泛影响包括向土地管理者提供重要的沿海侵蚀和湿地评估的预测，研究和教育的整合，大量本科生和博士后的培训以及对早期职业研究人员的支持。