Groundwater-derived nutrient inputs to the Upper Gulf of Thailand     

William C. Burnett  Gullaya Wattayakorn  Makoto Taniguchi  Henrieta Dulaiova  Pramot Sojisuporn  Sompop Rungsupa  Tomotoshi Ishitobi 《Continental Shelf Research》2007

We report here the first direct measurements of nutrient fluxes via groundwater discharge into the Upper Gulf of Thailand. Nutrient and standard oceanographic surveys were conducted during the wet and dry seasons along the Chao Phraya River, Estuary and out into the Upper Gulf of Thailand. Additional measurements in selected near-shore regions of the Gulf included manual and automatic seepage meter deployments, as well as nutrient evaluations of seepage and coastal waters. The river transects characterized the distribution of biogeochemical parameters in this highly contaminated urban environment. Seepage flux measurements together with nutrient analyses of seepage fluids were used to estimate nutrient fluxes via groundwater pathways for comparison to riverine fluxes.  相似文献