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- W4237338082 abstract "Abstract. Silica, SiO2, in dissolved (DSi) and particulate (PSi) form, is both a major product of continental weathering as well as an essential nutrient in terrestrial and aquatic systems. Here we present estimates of the spatial distribution of riverine silica fluxes under natural conditions, i.e. without human influence, to ~140 segments of the global coastal zone. Focussing on the construction of the DSi budget, natural DSi concentration is multiplied with discharge of rivers for each segment for documented basins and segments. Segments with no documentation available are estimated using clustered information based mainly on considerations of local lithology, climate, and lake retention. We approximate fluxes of particulate silica in various forms (PSi) from fluxes of suspended matter, calculated from existing models. Results have been established for silica fluxes, concentrations and yields for drainage basins of the different continents, oceans basins as well as coastal segment basins. For the continental surfaces actually draining into the oceans (exorheic regions, representing 114.7 M km2), 371 M t y−1 of DSi and 8835 M t y−1 of PSi are transported, corresponding to a mean concentration of 9.5 mg l−1 and 226 mg l−1, and to a mean yield of 3.3 t km−2 y−1 and 77 t km−2 y−1, respectively. DSi yields exceeding 6.6 t km−2 y−1, i.e. >2× the global average, represent 17.4% of the global continental ice-free exorheic area but correspond to 56.0% of DSi fluxes. Pacific catchments hold most of the hyper-active areas (>5× global average), suggesting a close connection between tectonic activity and DSi fluxes resulting from silicate weathering. The macro-filters of regional and marginal seas intercept 33% and 46% of the total dissolved and particulate silica fluxes." @default.
- W4237338082 created "2022-05-12" @default.
- W4237338082 creator A5005065154 @default.
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- W4237338082 creator A5019869869 @default.
- W4237338082 creator A5055994866 @default.
- W4237338082 creator A5063159819 @default.
- W4237338082 date "2009-01-27" @default.
- W4237338082 modified "2023-10-01" @default.
- W4237338082 title "Global spatial distribution of natural riverine silica inputs to the coastal zone" @default.
- W4237338082 cites W1490627100 @default.
- W4237338082 cites W1515778440 @default.
- W4237338082 cites W1521595634 @default.
- W4237338082 cites W1530089516 @default.
- W4237338082 cites W1533016475 @default.
- W4237338082 cites W1537053633 @default.
- W4237338082 cites W1537798126 @default.
- W4237338082 cites W1558676383 @default.
- W4237338082 cites W1630202277 @default.
- W4237338082 cites W1673467371 @default.
- W4237338082 cites W1782049738 @default.
- W4237338082 cites W1817088834 @default.
- W4237338082 cites W1836344216 @default.
- W4237338082 cites W1926880619 @default.
- W4237338082 cites W1943592298 @default.
- W4237338082 cites W1977470952 @default.
- W4237338082 cites W1978313621 @default.
- W4237338082 cites W1978846595 @default.
- W4237338082 cites W1980076932 @default.
- W4237338082 cites W1985402739 @default.
- W4237338082 cites W1985923572 @default.
- W4237338082 cites W1991531753 @default.
- W4237338082 cites W1992792311 @default.
- W4237338082 cites W1993280670 @default.
- W4237338082 cites W1996350167 @default.
- W4237338082 cites W1997459364 @default.
- W4237338082 cites W1997637051 @default.
- W4237338082 cites W1998182786 @default.
- W4237338082 cites W1998515817 @default.
- W4237338082 cites W1999200466 @default.
- W4237338082 cites W1999352795 @default.
- W4237338082 cites W2000179986 @default.
- W4237338082 cites W2001428992 @default.
- W4237338082 cites W2002489330 @default.
- W4237338082 cites W2002606625 @default.
- W4237338082 cites W2005921618 @default.
- W4237338082 cites W2007248477 @default.
- W4237338082 cites W2008587428 @default.
- W4237338082 cites W2008615754 @default.
- W4237338082 cites W2009609472 @default.
- W4237338082 cites W2009645507 @default.
- W4237338082 cites W2010859214 @default.
- W4237338082 cites W2010922943 @default.
- W4237338082 cites W2010930484 @default.
- W4237338082 cites W2012269102 @default.
- W4237338082 cites W2013653597 @default.
- W4237338082 cites W2017870133 @default.
- W4237338082 cites W2026886308 @default.
- W4237338082 cites W2030890502 @default.
- W4237338082 cites W2036280659 @default.
- W4237338082 cites W2037531564 @default.
- W4237338082 cites W2042166844 @default.
- W4237338082 cites W2045181013 @default.
- W4237338082 cites W2046936464 @default.
- W4237338082 cites W2048730546 @default.
- W4237338082 cites W2051984887 @default.
- W4237338082 cites W2054922182 @default.
- W4237338082 cites W2056096370 @default.
- W4237338082 cites W2056957829 @default.
- W4237338082 cites W2065545467 @default.
- W4237338082 cites W2066659189 @default.
- W4237338082 cites W2067119769 @default.
- W4237338082 cites W2068889121 @default.
- W4237338082 cites W2069155998 @default.
- W4237338082 cites W2070440774 @default.
- W4237338082 cites W2071896725 @default.
- W4237338082 cites W2073034460 @default.
- W4237338082 cites W2074632882 @default.
- W4237338082 cites W2080756707 @default.
- W4237338082 cites W2087486717 @default.
- W4237338082 cites W2088367435 @default.
- W4237338082 cites W2088428121 @default.
- W4237338082 cites W2089206816 @default.
- W4237338082 cites W2091943292 @default.
- W4237338082 cites W2092891768 @default.
- W4237338082 cites W2105775811 @default.
- W4237338082 cites W2107092376 @default.
- W4237338082 cites W2114106408 @default.
- W4237338082 cites W2114648480 @default.
- W4237338082 cites W2120601523 @default.
- W4237338082 cites W2122702323 @default.
- W4237338082 cites W2127362487 @default.
- W4237338082 cites W2139081715 @default.
- W4237338082 cites W2150701841 @default.
- W4237338082 cites W2158425801 @default.
- W4237338082 cites W2163973246 @default.
- W4237338082 cites W2174600973 @default.
- W4237338082 cites W2177953321 @default.
- W4237338082 cites W2178607778 @default.
- W4237338082 cites W2313817192 @default.