Collaboration: Rainfall-driven Intertidal Zone Carbon Cycling

摘要：(0628372/0628491 Torres/Goni)学术价值：这项研究记录了一项对碳循环中研究不足的部分进行的跨学科研究：潮间带粘性沉积物在退潮时对碳的侵蚀。一项初步研究的初步数据显示，这是大陆边缘碳循环的一个潜在重要组成部分。将进行一项定量的、时间序列的实地研究，在两年的时间内测量控制降雨模拟实验和自然暴雨产生的水滴对粘土/富有机潮汐沉积物的侵蚀影响。还将同时对沉积物中的颗粒物和溶解有机物进行研究，并对邻近河口水域中有机化合物的自然本底浓度和种类进行研究。结果将从地方到地区范围扩大。广泛的影响：该研究将支持俄勒冈州和南卡罗来纳州学术机构的两个少数族裔个人投资机构，后者是EPSCoR州。将培训两名研究生，本科生将参与研究。将通过位于南卡罗来纳州北伊特雷特的巴鲁克研究所进行公众宣传。PI将与奇卡诺促进会和美洲原住民科学家合作，尝试为该项目招募少数族裔学生。

ABSTRACT: (0628372/0628491 Torres/Goni)Intellectual Merit: This research documents an cross-disciplinary study of an under-studied part of the carbon cycle: erosion of carbon at low tide from intertidal cohesive sediments. Preliminary data from a pilot study showed that this is a potentially important component of carbon cycling on continental margins. A quantitative, time-series, field study will be undertaken in which the erosional impact of water droplets from controlled rainfall simulation experiments and from natural rainstorms on clay/organic-rich tidal sediments will be measured over a two year period. A companion study of particulate and dissolved organic matter shed from the sediments will also be carried out as will a study of the natural background concentrations and species of organic compounds in adjacent estuarine waters. Results will be scaled up from the local to regional scale.Broader Impacts: The research will support two minority PIs at academic institutions in Oregon and South Carolina, the latter of which is an EPSCoR state. Two graduate students will be trained and undergraduates will be involved in the research. Public outreach will take place through the Baruch Institute at North Inlet, South Carolina. The PI will work with the Society for the Advancement of Chicano and Native American Scientists to try and recruit minority students for the project.