Fluxes of Dissolved Inorganic Nutrients and Total Suspended Solid at the Phangrad River Mouth, Rayong Province During Dry and Wet Seasons in 2015
Abstract
A study on Fluxes of dissolved inorganic nutrients and total suspended solid at the Phangrad River Mouth during dry (April) and wet (September) seasons in 2015 was conducted. The Acoustic Doppler Current Profiler (ADCP) was used to measure water flux in a tidal cycle. The results showed that the net fluxes of water and dissolved inorganic ammonia, nitrite, nitrate and phosphate were directed seaward in both seasons (0.37×106 m3/day, 317.69 kg N/day, 24.35 kg N/day, 30.70 kg N/day and 85.05 kg P/day, respectively, in dry season and 0.59×106 m3/day, 74.28 kg N/day, 22.95 kg N/day, 162.21 kg N/day and 38.43 kg P/day, respectively, in wet season). The net flux of dissolved inorganic nitrate accords with the net flux of water. The net fluxes of dissolved inorganic ammonia, nitrite and phosphate had higher amount in dry season than those in wet season related to their higher concentrations in the previous season. The net flux of total suspended solid was directed to the estuary because of the flowing of resuspended sediment from the coastal area during spring tide. The net flux of dissolved inorganic silicate moved seaward in dry season but riverward in wet season in the same way as those of total suspended solid. Comparison with other rivers in the eastern region of Thailand showed that the net fluxes of ammonia and phosphate at the Phangrad River Mouth were relatively high in dry season. Keywords: Fluxes of dissolved inorganic nutrients, Fluxes of total suspended solid, Phangrad RiverReferences
American Public Health Association-APHA. (1992). Standard Methods for the Examination of Water and
Wastewater including Sediments and Sludges (18th ed.). American Public Health Association: American
Water Works Association and the Water Environment Federation, Washington DC., USA.
Buranapratheprat, A., Choetchoojun, Y., Kongmaung, N., Intacharoen, P., Kan-atireklarp, S. & Kunboa, V. (2013)
Dissolved Inorganic Nutrient Fluxes at the Prasae River Mouth, Rayong Province in Wet and Dry Seasons
in 2010. Burapha Science Journal, 18(2), 222-231. (in Thai)
Buranapratheprat, A. & Intacharoen, P. (2011). Water Qualities in Chonburi Bay in 2008. Burapha Science
Journal, 16(1), 94–106. (in Thai)
Buranapratheprat, A., Khunathorn, P., Intacharoen, P., Kan-atireklarp, S. & Kunboa, V. (2013). Suspended
Sediment Flux at the Prasae River Mouth in 2010. Burapha Science Journal, 18(2), 232-245. (in Thai)
Chantaburi Land Development Station. (2009). Water resources of the Phangrad River. Retrieved 1, 2016, from
http://r02.ldd.go.th/cti/soil_manage.html. (in Thai)
Dyer, K.R. (1973). Estuaries: A Physical Introduction. London: John Wiley & Sons.
Grasshoff, K., Kremling, K. & Ehrhardt, M. (1999). Methods of Seawater Analysis 3rd Eds. Weinheim: Wiley-VCH.
Kan-atireklarp, S., Buranapratheprat, A., Yuenyong, S. & Komsai, T. (2015). Fluxes of dissolved inorganic nutrients
and suspended sediment at the Chanthaburi River mouth, Chanthaburi Province in dry and wet seasons
in 2013. The 7th National Science Research Conference, PY-P-001 1-7. (in Thai)
Kan-atireklarp, S., Yuenyong, S., Meesub, B., Buranapratheprat, A., Meesup, A. & Kan-atireklarp, S. (2016). Fluxes
of dissolved inorganic nutrients and suspended sediment at the Trat River Mouth, Trat Province in dry and
wet seasons in 2014. The 5th Marine Science Conference, O-F-028. (in Thai)
Meteorological Department. (2015). Climate of Thailand. Retrieved 30, 2016, from
https://www.tmd.go.th/info/climate_of_thailand-2524-2553.pdf. (in Thai)
Pollution Control Department. (2005). Marine pollution and solutions in Thailand. Retrieved August 30, 2016, from
http://infofile.pcd.go.th/water/Pollu_sea.pdf?CFID=1327501&CFTOKEN=30767631. (in Thai)
Pollution Control Department. (2015). Marine pollution. Retrieved July 15, 2016, from
http://www.pcd.go.th/info_serv/water_marine.html. (in Thai)
Strickland, J.D.H. & Parsons, T.R. (1972). A Practical Handbook of Seawater Analysis. Ottawa: Fishery Research
Board of Canada.
Wastewater including Sediments and Sludges (18th ed.). American Public Health Association: American
Water Works Association and the Water Environment Federation, Washington DC., USA.
Buranapratheprat, A., Choetchoojun, Y., Kongmaung, N., Intacharoen, P., Kan-atireklarp, S. & Kunboa, V. (2013)
Dissolved Inorganic Nutrient Fluxes at the Prasae River Mouth, Rayong Province in Wet and Dry Seasons
in 2010. Burapha Science Journal, 18(2), 222-231. (in Thai)
Buranapratheprat, A. & Intacharoen, P. (2011). Water Qualities in Chonburi Bay in 2008. Burapha Science
Journal, 16(1), 94–106. (in Thai)
Buranapratheprat, A., Khunathorn, P., Intacharoen, P., Kan-atireklarp, S. & Kunboa, V. (2013). Suspended
Sediment Flux at the Prasae River Mouth in 2010. Burapha Science Journal, 18(2), 232-245. (in Thai)
Chantaburi Land Development Station. (2009). Water resources of the Phangrad River. Retrieved 1, 2016, from
http://r02.ldd.go.th/cti/soil_manage.html. (in Thai)
Dyer, K.R. (1973). Estuaries: A Physical Introduction. London: John Wiley & Sons.
Grasshoff, K., Kremling, K. & Ehrhardt, M. (1999). Methods of Seawater Analysis 3rd Eds. Weinheim: Wiley-VCH.
Kan-atireklarp, S., Buranapratheprat, A., Yuenyong, S. & Komsai, T. (2015). Fluxes of dissolved inorganic nutrients
and suspended sediment at the Chanthaburi River mouth, Chanthaburi Province in dry and wet seasons
in 2013. The 7th National Science Research Conference, PY-P-001 1-7. (in Thai)
Kan-atireklarp, S., Yuenyong, S., Meesub, B., Buranapratheprat, A., Meesup, A. & Kan-atireklarp, S. (2016). Fluxes
of dissolved inorganic nutrients and suspended sediment at the Trat River Mouth, Trat Province in dry and
wet seasons in 2014. The 5th Marine Science Conference, O-F-028. (in Thai)
Meteorological Department. (2015). Climate of Thailand. Retrieved 30, 2016, from
https://www.tmd.go.th/info/climate_of_thailand-2524-2553.pdf. (in Thai)
Pollution Control Department. (2005). Marine pollution and solutions in Thailand. Retrieved August 30, 2016, from
http://infofile.pcd.go.th/water/Pollu_sea.pdf?CFID=1327501&CFTOKEN=30767631. (in Thai)
Pollution Control Department. (2015). Marine pollution. Retrieved July 15, 2016, from
http://www.pcd.go.th/info_serv/water_marine.html. (in Thai)
Strickland, J.D.H. & Parsons, T.R. (1972). A Practical Handbook of Seawater Analysis. Ottawa: Fishery Research
Board of Canada.
Downloads
Published
2017-11-06
Issue
Section
Research Article
