LTER: Drivers, dynamics and consequences of non-linear change in coastal barrier systems

LTER：沿海屏障系统非线性变化的驱动因素、动态和后果

• 批准号: 1237733
• 负责人: Karen McGlathery
• 金额: $ 490万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-12-01 至 2019-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1237733&HistoricalAwards=false
• 关键词: LTER; Drivers; dynamics; consequences; non

The Virginia Coast Reserve (VCR) Long Term Ecological Research (LTER) Program examines the response of coastal barrier ecosystems to climate change, sea-level rise and intensified human use. Studies of watersheds, marshes, tidal flats, bays, and barrier islands show that there are surprising and dramatic changes in ecological dynamics, so-called 'tipping points' or thresholds, where one ecosystem rapidly shifts to another. When these changes occur, many key ecosystem services - storm buffering, commercial fisheries support, carbon sequestration and wildlife habitat - are lost and may be difficult to restore. The VCR LTER uses long-term observations, experiments, and modeling to characterize how, where, and when these tipping points occur, the environmental drivers and biological feed-backs that move ecosystems toward or away from critical thresholds, and the resilience of ecosystems to resist change. Understanding non-linear responses to global change is critical to managing coastal ecosystems where over half the global population lives, and where humans are altering systems at unprecedented rates. VCR research findings will be broadly disseminated through the program's website, publications and presentations, and partnerships with regional stakeholders to inform policy decisions. The site's Schoolyard Program will provide important training and infrastructure to primary and secondary schools in the local counties, which are some of the poorest in Virginia, and where over half the students are women and minorities. Training of future environmental scientists through the graduate programs at the Virginia Coastal Reserve is one of the priorities of the proposed research.

弗吉尼亚海岸保护区（VCR）长期生态研究（LTER）计划研究沿海屏障生态系统对气候变化，海平面上升和人类使用加剧的反应。 对流域、沼泽、滩涂、海湾和堰洲岛的研究表明，生态动态会发生令人惊讶的巨大变化，即所谓的“临界点”或阈值，即一个生态系统迅速转向另一个生态系统。当这些变化发生时，许多关键的生态系统服务-风暴缓冲、商业渔业支持、碳固存和野生动物栖息地-都将丧失，而且可能难以恢复。 VCR LTER使用长期观测、实验和建模来描述这些临界点如何、在何处和何时发生，使生态系统接近或远离临界阈值的环境驱动因素和生物反馈，以及生态系统抵抗变化的弹性。了解对全球变化的非线性响应对于管理沿海生态系统至关重要，全球一半以上的人口居住在沿海生态系统中，人类正在以前所未有的速度改变系统。VCR的研究结果将通过该方案的网站、出版物和演示文稿以及与区域利益攸关方的伙伴关系广泛传播，以告知政策决定。 该网站的校园计划将为当地县的中小学提供重要的培训和基础设施，这些县是弗吉尼亚州最贫穷的县之一，一半以上的学生是妇女和少数民族。通过弗吉尼亚海岸保护区的研究生课程培训未来的环境科学家是拟议研究的优先事项之一。

项目成果

The effect of a small vegetation dieback event on salt marsh sediment transport

• DOI: 10.1002/esp.4547
• 发表时间: 2018-12
• 期刊: Earth Surface Processes and Landforms
• 影响因子: 3.3
• 作者: D. Coleman;M. Kirwan

Investigating dune‐building feedback at the plant level: Insights from a multispecies field experiment

调查沙丘——植物层面的建筑反馈：来自多物种实地实验的见解

• DOI: 10.1002/esp.4607
• 发表时间: 2019
• 期刊: Earth Surface Processes and Landforms
• 影响因子: 3.3
• 作者: Mullins, Elsemarie;Moore, Laura J.;Goldstein, Evan B.;Jass, Theo;Bruno, John;Durán Vinent, Orencio
• 通讯作者: Durán Vinent, Orencio

Coastal dynamics and adaptation to uncertain sea level rise: Optimal portfolios for salt marsh migration

沿海动态和对不确定的海平面上升的适应：盐沼迁移的最佳组合

• DOI: 10.1016/j.jeem.2019.102262
• 发表时间: 2019
• 期刊: Journal of Environmental Economics and Management
• 影响因子: 4.6
• 作者: Vinent, Orencio Duran;Johnston, Robert J.;Kirwan, Matthew L.;Leroux, Anke D.;Martin, Vance L.
• 通讯作者: Martin, Vance L.

Exploring Marine and Aeolian Controls on Coastal Foredune Growth Using a Coupled Numerical Model

• DOI: 10.3390/jmse7010013
• 发表时间: 2019-01
• 期刊: Journal of Marine Science and Engineering
• 影响因子: 2.9
• 作者: N. Cohn;B. Hoonhout;E. Goldstein;S. de Vries;L. Moore;Orencio Durán Vinent;P. Ruggiero

The future of Blue Carbon science

• DOI: 10.1038/s41467-019-11693-w
• 发表时间: 2019-09-05
• 期刊: NATURE COMMUNICATIONS
• 影响因子: 16.6
• 作者: Macreadie, Peter I.;Anton, Andrea;Duarte, Carlos M.
• 通讯作者: Duarte, Carlos M.