@article{fdi:010063123,
  title = {{C}ontrols of {DS}i in streams and reservoirs along the {K}averi {R}iver, {S}outh {I}ndia},
  author = {{M}eunier, {J}. {D}. and {R}iotte, {J}ean and {B}raun, {J}ean-{J}acques and {S}ekhar, {M}. and {C}halie, {F}. and {B}arboni, {D}. and {S}accone, {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}here is an increasing body of evidence showing that land use may affect the concentration and flux of dissolved silica ({DS}i) and amorphous, biogenic {S}i particles ({AS}i/{BS}i) in surface waters. {H}ere, we present a study of riverine waters collected within the {K}averi {R}iver {B}asin, which has a long history of land occupation with +43% population increase in the watershed during the last 30 years associated with agricultural practices including canal irrigation from reservoirs and, more recently, bore well pumping. {W}e report total dissolved solids ({TDS}) and suspended material ({TSM}) for 15 river stations and 5 reservoirs along the {K}averi itself and its main tributaries sampled during pre-monsoon, monsoon and post-monsoon periods in 2006 and 2007. {T}he {TDS} in the {K}averi {R}iver globally increases from the upper reaches (humid to sub-humid climate) to the lower reaches (semi-arid climate), and at a given station from monsoon ({M}) to hot season ({HS}). {T}he {DS}i concentrations range from 129 mu mol {L}-1 ({M}) to 390 mu mol {L}-1 ({HS}) in the main {K}averi stream and reaches up to 686 mu mol {L}-1 in the {S}himsha {R}iver ({HS}). {O}ur results indicate that {DS}i and the main solutes of the {K}averi {R}iver have not drastically changed since the last 30 years despite the population increase. {T}he pollution index of {V}an der {W}eijden and {P}acheco (2006) ranges from 13% to 54% but {DS}i does not seem to be affected by domestic wastewater. {AS}i is mostly composed of diatoms and phytoliths that both play roles in controlling {DS}i. {W}e suggest that {DS}i and {AS}i delivered to the cultivated areas through irrigation from reservoir may have two important consequences: increasing {S}i bioavailability for crops and limiting {S}i flux to the ocean.},
  keywords = {{S}ilicon ; {K}averi {B}asin ; {R}eservoir ; {D}issolved solids ; {W}eathering ; {M}onsoon ; {INDE}},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {502},
  numero = {},
  pages = {103--113},
  ISSN = {0048-9697},
  year = {2015},
  DOI = {10.1016/j.scitotenv.2014.07.107},
  URL = {https://www.documentation.ird.fr/hor/fdi:010063123},
}