Global patterns of dissolved silica export to the coastal zone: Results from a spatially explicit global model Export

@article{citeulike:5973035, abstract = {We present a multiple linear regression model developed for describing global river export of dissolved SiO2 (DSi) to coastal zones. The model, with river basin spatial scale and an annual temporal scale, is based on four variables with a significant influence on DSi yields (soil bulk density, precipitation, slope, and area with volcanic lithology) for the predam situation. Cross validation showed that the model is robust with respect to the selected model variables and coefficients. The calculated global river export of DSi is 380 Tg a−1 (340–427 Tg a−1). Most of the DSi is exported by global rivers to the coastal zone of the Atlantic Ocean (41\%), Pacific Ocean (36\%), and Indian Ocean (14\%). South America and Asia are the largest contributors (25\% and 23\%, respectively). DSi retention in reservoirs in global river basins may amount to 18–19\%.}, author = {Beusen, A. H. W. and Bouwman, A. F. and D\"{u}rr, H. H. and Dekkers, A. L. M. and Hartmann, J.}, citeulike-article-id = {5973035}, citeulike-linkout-0 = {http://dx.doi.org/10.1029/2008GB003281}, citeulike-linkout-1 = {http://www.agu.org/pubs/crossref/2009/2008GB003281.shtml}, day = {01}, doi = {10.1029/2008GB003281}, issn = {0886-6236}, journal = {Global Biogeochemical Cycles}, keywords = {global, globalnews, model, river\_export, rivers, scenarios, silica, silicate\_weathering, weathering}, month = {August}, pages = {GB0A02+}, posted-at = {2009-10-20 06:02:56}, priority = {0}, title = {Global patterns of dissolved silica export to the coastal zone: Results from a spatially explicit global model}, url = {http://dx.doi.org/10.1029/2008GB003281}, volume = {23}, year = {2009} }

TY - JOUR ID - citeulike:5973035 L3 - citeulike-article-id:5973035 N2 - We present a multiple linear regression model developed for describing global river export of dissolved SiO2 (DSi) to coastal zones. The model, with river basin spatial scale and an annual temporal scale, is based on four variables with a significant influence on DSi yields (soil bulk density, precipitation, slope, and area with volcanic lithology) for the predam situation. Cross validation showed that the model is robust with respect to the selected model variables and coefficients. The calculated global river export of DSi is 380 Tg a−1 (340–427 Tg a−1). Most of the DSi is exported by global rivers to the coastal zone of the Atlantic Ocean (41%), Pacific Ocean (36%), and Indian Ocean (14%). South America and Asia are the largest contributors (25% and 23%, respectively). DSi retention in reservoirs in global river basins may amount to 18–19%. JF - Global Biogeochemical Cycles SN - 0886-6236 TI - Global patterns of dissolved silica export to the coastal zone: Results from a spatially explicit global model VL - 23 SP - GB0A02 KW - global KW - globalnews KW - model KW - river_export KW - rivers KW - scenarios KW - silica KW - silicate_weathering KW - weathering AU - Beusen, AHW AU - Bouwman, AF AU - Dürr, HH AU - Dekkers, ALM AU - Hartmann, J PY - 2009/08/01/ UR - http://dx.doi.org/10.1029/2008GB003281 ER -