TY - JOUR
T1 - Interannual nutrient dynamics in Korean coastal waters
AU - Kim, Tae Wook
AU - Lee, Kitack
AU - Lee, Chang Kyu
AU - Jeong, Hee Dong
AU - Suh, Young Sang
AU - Lim, Wol Ae
AU - Kim, Kwang Young
AU - Jeong, Hae Jin
N1 - Funding Information:
We are indebted to many scientists who contributed data to Korea National Fisheries Research and Development Institute, National Institute of Environmental Research, and the Ministry of Land, Transport and Maritime Affairs. The preparation of the manuscript was supported by the Mid-career Research Program (No. 2012R1A2A1A01004631 ) of the National Research Foundation (NRF) of Korea. Partial support was also provided by the project titled “Long-term change of structure and function in marine ecosystems of Korea” funded by the Ministry of Oceans and Fisheries. Support for T.-W.K was provided by Basic Science Research Program through the NRF (2012R1A6A3A04038883).
PY - 2013/12
Y1 - 2013/12
N2 - The dynamics (interannual) of dissolved inorganic nutrient concentrations (dissolved inorganic nitrogen, DIN; dissolved inorganic phosphorus, DIP; and dissolved inorganic silicate, DSi) were investigated in inshore and offshore waters of Korea using time series data collected from 1994 to 2010. During this period the DIN concentration progressively decreased in most parts of the inshore areas, but markedly increased in offshore waters. In the inshore waters, where river-borne nutrients are a dominant source, the trend of decreasing DIN concentration reflected the trends of riverine DIN. Riverine sources are less important in the offshore waters, and the trends of increasing concentrations of DIN and DSi in the offshore waters reflected the trends of increase in atmospheric deposition and Asian dust, respectively. Inputs from submarine groundwater discharge and lateral current transport were also partly responsible for the changes in nutrient concentrations in the inshore and offshore waters, respectively. Our results indicate that the recent changes in nutrient concentrations in the inshore and the offshore waters of Korea are largely governed by changes in the relative contributions from riverine inputs and atmospheric deposition, which often have differing trends over time.
AB - The dynamics (interannual) of dissolved inorganic nutrient concentrations (dissolved inorganic nitrogen, DIN; dissolved inorganic phosphorus, DIP; and dissolved inorganic silicate, DSi) were investigated in inshore and offshore waters of Korea using time series data collected from 1994 to 2010. During this period the DIN concentration progressively decreased in most parts of the inshore areas, but markedly increased in offshore waters. In the inshore waters, where river-borne nutrients are a dominant source, the trend of decreasing DIN concentration reflected the trends of riverine DIN. Riverine sources are less important in the offshore waters, and the trends of increasing concentrations of DIN and DSi in the offshore waters reflected the trends of increase in atmospheric deposition and Asian dust, respectively. Inputs from submarine groundwater discharge and lateral current transport were also partly responsible for the changes in nutrient concentrations in the inshore and offshore waters, respectively. Our results indicate that the recent changes in nutrient concentrations in the inshore and the offshore waters of Korea are largely governed by changes in the relative contributions from riverine inputs and atmospheric deposition, which often have differing trends over time.
KW - Atmospheric nitrogen deposition
KW - Eutrophication
KW - Harmful algal bloom
KW - Korean coastal waters
KW - Riverine nutrient flux
KW - Submarine groundwater discharge
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U2 - 10.1016/j.hal.2013.10.003
DO - 10.1016/j.hal.2013.10.003
M3 - Article
AN - SCOPUS:84887614555
VL - 30
SP - S15-S27
JO - Harmful Algae
JF - Harmful Algae
SN - 1568-9883
IS - SUPPL.1
ER -