Importance of weathering and human perturbations on the riverine transport of Si
作者： Jean-Dominique Meunier , Jean-Jacques Braun , Jean Riotte , Chikkakenchaiah Kumar , Muddu Sekhar
DOI: 10.1016/J.APGEOCHEM.2011.03.060
关键词: Diatom 、 Geology 、 Deforestation 、 Eutrophication 、 Tropics 、 Groundwater recharge 、 Vegetation 、 Weathering 、 Hydrology 、 Urbanization
摘要: The global Si cycle is strongly controlled by riverine input. Over the last decade two parameters have been shown to play a significant role in control of dissolved (DSi): biology, through effects diatom blooms and vegetation growth, human activity, eutrophication, urbanisation, agriculture, deforestation damming. Human perturbations should now be better quantified when modelling particularly tropics. A case study presented based on preliminary data along Kaveri river (India) impacted dams. It suggested that DSi combined effect chemical weathering, damming groundwater recharge.
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