Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신경훈 | - |
dc.date.accessioned | 2024-04-30T05:19:19Z | - |
dc.date.available | 2024-04-30T05:19:19Z | - |
dc.date.issued | 2023-02-18 | - |
dc.identifier.citation | WATER RESEARCH, v. 235, Article NO. 119755, Page. 1-13 | en_US |
dc.identifier.issn | 0043-1354 | en_US |
dc.identifier.uri | https://information.hanyang.ac.kr/#/eds/detail?an=S0043135423001902&dbId=edselp | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/190094 | - |
dc.description.abstract | Quantitative estimation for tracking the transport of various nitrate sources is required to effectively manage nitrate loading in complex river systems. In this study, we validated an integrated framework using field isotopic data (delta 15NNO3 and delta 18ONO3) of nitrates and hydrological modeling (hydrological simulation program FORTRAN; HSPF) to determine anthropogenic nitrate flux among different land-use types within a watershed. Nitrate iso-topic compositions showed different ranges among four land-use types (4.9 to 15.5 parts per thousand for delta 15NNO3,-4.9 to 12.1 parts per thousand for delta 18ONO3), reflecting the different nitrate sources (sewage, synthetic fertilizer, effluent and soil) within wa-tersheds. Based on the integration of HSPF modeling, we also found that total nitrate loads might be partially controlled by hydrological conditions such as water discharge (12,040.3-22,793.2 L/s) from upstream to downstream. Among the nitrate sources, the sewage transport showed unique enhancement near urban boundaries, along with an increase in total nitrate load (˃193.5 NO3-N g/s km2) in downstream areas. In addition, the isotopic-and model-based nitrate fluxes showed good correlation for urban sources (R2=0.73, p ˂ 0.05) but poor correlations for agriculture-dominated land use (R2=0.13, p ˃ 0.05), reflecting the potential influence of surface runoff and ground infiltration into the watershed. Consequently, this research provided useful information to establish nitrogen management policy controlling point and non-point nitrate source loads in various land-use types for the restoration of water quality and aquatic ecosystem in the complex river system. Considering the recent increase in human activities near aquatic environments, this framework would be effective for individually estimating the quantitative contributions of anthropogenic nitrate sources transported along river-coastal systems. | en_US |
dc.description.sponsorship | This work was supported by a National Research Foundation of Korea, South Korea (NRF) grant funded by the Korean Government (MSIT) (No. 2020R1A4A2002823 and 2021M3I6A1091270) and ‘Development of source identification and apportionment methods for toxic substances in marine environments’ program of the Korea Institute of Marine Science & Technology Promotion (KIMST) funded by the Ministry of Oceans and Fisheries (KIMST-20220534). | en_US |
dc.language | en_US | en_US |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | en_US |
dc.relation.ispartofseries | v. 235, Article NO. 119755;1-13 | - |
dc.subject | Nitrate source | en_US |
dc.subject | Nitrate isotope | en_US |
dc.subject | Hydrology | en_US |
dc.subject | Nitrate flux | en_US |
dc.subject | Complex river catchment | en_US |
dc.title | Systematic tracing of nitrate sources in a complex river catchment: An integrated approach using stable isotopes and hydrological models | en_US |
dc.type | Article | en_US |
dc.relation.volume | 235 | - |
dc.identifier.doi | 10.1016/j.watres.2023.119755 | en_US |
dc.relation.page | 1-13 | - |
dc.relation.journal | WATER RESEARCH | - |
dc.contributor.googleauthor | Kim, Seung-Hee | - |
dc.contributor.googleauthor | Lee, Dong-Hun | - |
dc.contributor.googleauthor | Kim, Min-Seob | - |
dc.contributor.googleauthor | Rhee, Han-Pil | - |
dc.contributor.googleauthor | Hur, Jin | - |
dc.contributor.googleauthor | Shin, Kyung-Hoon | - |
dc.relation.code | 2023033889 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E] | - |
dc.sector.department | DEPARTMENT OF MARINE SCIENCE AND CONVERGENCE ENGINEERING | - |
dc.identifier.pid | shinkh | - |
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