The Fluvial Gochemistry of Western China

全球地球化学模型中世界河流通量的表征是地球化学的一个主要目标。了解营养物质、微量元素和有机碳进入沿海海洋的情况非常重要。此外，通过研究原始河流的组成，有可能了解风化作用的产物，并最终通过风化作用对大气二氧化碳浓度的影响来长期稳定气候。该项目将把中国河流地球化学的以往工作扩展到迄今为止难以进入的中国西部地区，从那里获得的数据很少。拟议的工作将包括研究这些河流从原始源头地区向人口稠密地区演变过程中溶解的化学成分，收集悬浮物质和河床物质，并建立一个基线，供正在进行的大型水文操纵项目参考。这项工作的各个方面将通过风化和相关的大气二氧化碳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.