Collaboration: Rainfall-driven Intertidal Zone Carbon Cycling

摘要：（0628372/0628491托雷斯/戈尼）智力优点：这项研究记录了碳循环的一个未充分研究的部分的跨学科研究：低潮时潮间带粘性沉积物的碳侵蚀。 一项试点研究的初步数据显示，这是大陆边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，在这项研究中，将在两年的时间内测量受控降雨模拟实验和自然暴雨对粘土/富含有机物的潮汐沉积物的水滴的侵蚀影响。 还将对从沉积物中脱落的微粒和溶解有机物进行伴随研究，并对邻近河口沃茨中有机化合物的自然背景浓度和种类进行研究。更广泛的影响：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民族PI，后者是EPSCoR州。 两名研究生将接受培训，本科生将参与研究。 公众宣传将通过位于南卡罗来纳州北湾的巴鲁克研究所进行。 PI将与奇卡诺和美洲土著科学家促进协会合作，尝试为该项目招募少数民族学生。

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.