『Abstract
　Previous studies on waters of a streamlet in the Vosges Mountains (Eastern France) have shown that strontium and rare earth elements (REE) mainly originate from preferential dissolution of apatite during weathering. However, stream water REE patterns normalized to apatite are still depleted in the light REE (LREE, La-Sm) pointing to the presence of an additional LREE depleting process. Vegetation samples are strongly enriched in LREE compared to stream water and their Sr and Nd isotopic compositions are comparable with those of apatite and stream water. Thus, the preferential LREE uptake by vegetation might lead to an additional LREE depletion of surface runoff in the forested catchment. Mass balance calculations indicate, that the yearly LREE uptake by vegetation is comparable with the LREE export by the streamlet and, therefore, might be an important factor controlling LREE depletion in river water. This is underlined by the observation that rivers from arctic and boreal regions with sparse vegetation appears to be less depleted in LREE than rivers from tropical environments or boreal environments with a dense vegetation cover.』

1. Introduction
2. Site setting
3. Analytical methods
4. Results and discussion
　4.1. REE and Sr-Nd isotope signatures of Strengbach waters in the uppermost catchment
　4.2. The Sr-Nd isotope signatures of vegetation
　4.3. The LREE uptake by vegetation
　4.4. The impact of vegetation on the REE budget of the Strengbach catchment
　4.5. The fate of vegetation hosted REE after degradation
　4.6. REE absorption by vegetation at a global scale
5. Summary and conclusions
Acknowledgments
References