The Fluvial Gochemistry of Western China

为全球地球化学模型描述世界河流通量是地球化学的一个主要目标。重要的是要了解营养物质、微量元素和有机碳对沿海海洋的输入。此外，通过研究原始河流的组成，可以了解风化的产物，并最终通过风化对大气CO2浓度的影响来长期稳定气候。该项目将把以前在中国地区进行的河流地球化学研究工作扩展到中国西部迄今难以进入的地区，从这些地区获得的数据很少。拟议的工作将涉及研究这些河流从原始源头地区向人口更稠密的地区演变时的溶解化学，收集悬浮和推移质物质，并建立基线，以供正在进行的超大型水文操纵项目参考。这项工作的各个方面将通过大气二氧化碳的风化和相关的稳定来解决构造对气候的影响。这项工作将与中国科学家合作完成。

Characterization of world river fluxes for global geochemical models is a major goal of geochemistry. It is important to understand the input ofnutrients, trace elements, and organic carbon into the coastal ocean. In addition, by studying the composition of pristine rivers, itis possible to understand the products of weathering, and ultimately, the long-term stabilization of climate by the effect of weathering on the atmospheric CO2 concentration. This project will extend previous work on the geochemistry of rivers in China to hitherto inaccessible areas of western China from which little data has beeen obtained. The proposed work would involve study of the dissolved chemistry of these rivers as they evolve from pristine source regions to more heavily populated areas, collection of suspended and bed-load material, and establishment of a base-line against which on-going very large hydrologic manipulation projects can be referred. Aspects of this work will address the influence of tectonics on climate via weathering and associated stabilization of atmospheric CO2. This work would be done in collaboration with Chinese scientists.