Collaboration: Rainfall-driven Intertidal Zone Carbon Cycling

摘要/ ABSTRACT摘要：（0628372/0628491 Torres/Goni）学术价值：本研究对潮间带黏性沉积物低潮期碳侵蚀这一碳循环中尚未被充分研究的部分进行了跨学科研究。一项试点研究的初步数据表明，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，其中将在两年期间内测量来自受控降雨模拟实验和自然暴雨的水滴对富含粘土/有机物的潮汐沉积物的侵蚀影响。还将对从沉积物中脱落的颗粒和溶解的有机物质进行配套研究，并对邻近河口水域中有机化合物的自然背景浓度和种类进行研究。结果将从地方规模扩大到区域规模。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族裔pi，后者是EPSCoR州。两名研究生将接受培训，本科生将参与研究。公众宣传将通过南卡罗来纳北湾的巴鲁克研究所进行。PI将与墨西哥裔美国人和印第安人科学家进步协会合作，试图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.