ETBC: Collaborative Research: Controls on the Flux, Age, and Composition of Terrestrial Organic Carbon Exported by Rivers to the Ocean

来自伍兹霍尔海洋研究所和伍兹霍尔研究中心的科学家将描述从陆地到海洋的河流碳出口的来源、途径和时间尺度。为了实现他们的目标，倡导者将把关于河流溶解和颗粒负荷组成的时空变化的地球化学测量与从遥感和地理信息系统制图获得的有关生态系统、水文、地质、地貌和气候特征的时空数据结合起来。这项研究将在六个大流域进行，即雅鲁藏布江、刚果、恒河、利纳、弗雷泽和长江。这是一个综合的多学科项目，侧重于碳循环方面的一个新兴主题，因为陆地/海洋边界发生的过程迄今尚未得到充分处理。对于参与建立海洋碳循环的海洋科学家来说，缺乏这方面的信息是一个明显的疏忽。至于更广泛的影响，将举办一场巡回艺术展，以居住在西伯利亚、孟加拉国、印度、加拿大、中国和非洲学习地点附近的学生的艺术品为基础。这次展览的想法是基于他们在勒纳河上成功开展的名为《我的河，我的家》的试点项目。预计展览将吸引研究地点的当地民众参与，并向更广泛的公众观众记录该项目的科学和文化方面。此外，该项目代表着美国科学家与俄罗斯、中国、加拿大、孟加拉国、刚果民主共和国和法国的同事之间强有力的合作努力。作为该项目的一部分，两名研究生和一名博士后将得到支持和培训。

Scientists from Woods Hole Oceanographic Institution and the Woods Hole Research Center will characterize the sources, pathways, and timescales of riverine export of carbon, especially organic carbon, from land to sea. To attain their goal, the proponents will integrate geochemical measurements on the temporal and spatial changes in the composition of dissolved and particulate river loads combined with spatial and temporal data on relevant ecosystem, hydrologic, geologic, geomorphologic, and climatologic characteristics obtained from remote sensing and GIS mapping. The study will be conducted on six large river basins, namely the Brahmaputra, Congo, Ganges, Lena, Fraser, and Yangtze. This represents an integrated, multi-disciplinary project that focuses on an emerging topic in carbon cycling because processes occurring at the land/ocean boundary have not been adequately addressed to date. Lack of this information represents a glaring omission for marine scientists involved in establishing the carbon cycle of the ocean. As regards broader impacts, a traveling art exhibition based on the artwork of students living near their study sites in Siberia, Bangladesh, India, Canada, China, and Africa will be developed. The exhibition idea is based on their successful pilot program entitled 'My River, My Home' carried out on the Lena River. It is anticipated that the exhibit will engage local populations at the study sites as well as document the scientific and cultural aspects of the project to a broader public audience. In addition, the project represents a strong collaborative effort between scientists in the United States and colleagues in Russia, China, Canada, Bangladesh, the Republic and Democratic Republic of Congo and France. Two graduate students and one postdoc will be supported and trained as part of this project.