The Patterns of Dissolved N2O Concentrations Are Driven by Nutrient Stoichiometry Related to Land Use Types in the Yiluo River Basin, China DOI Open Access
Hongli Zhang, Heng Liu, Bingbing Jiang

et al.

Water, Journal Year: 2025, Volume and Issue: 17(8), P. 1167 - 1167

Published: April 14, 2025

The concentrations of dissolved N2O in river systems at the basin scale exhibit significant spatial and temporal variability, particularly under diverse landscape conditions. This study focused on a temperate basin—the Yiluo River (YLR) China—to investigate variations indirect emission factors (EF5r) between dry wet seasons. differences among tributaries were analyzed to assess impact land use types. findings revealed that saturation levels lower during season both main streams tributaries. In season, strongly correlated with NH4+-N, NO3−-N, oxidation–reduction potential (ORP) (R2 = 0.743, p < 0.001), while phosphorus (DP), water temperature (Tw), DOC 0.640, 0.001). Impervious was identified as primary source nitrogen seasons, rather than cropland. Natural land, shrubland, demonstrated notable mitigating effect accumulation played role reducing NO3−-N levels. YLR exhibited EF5r values (0.005–0.052%) compared default value recommended by IPCC, decrease observed (p Data analysis indicated nutrient dynamics, ratio organic carbon (DOC/NO3−-N), DP (NO3−-N/DP), significantly EF5r. These results underscore need re-evaluate regional potentials provide new insights into emissions through strategic management.

Language: Английский

The Patterns of Dissolved N2O Concentrations Are Driven by Nutrient Stoichiometry Related to Land Use Types in the Yiluo River Basin, China DOI Open Access
Hongli Zhang, Heng Liu, Bingbing Jiang

et al.

Water, Journal Year: 2025, Volume and Issue: 17(8), P. 1167 - 1167

Published: April 14, 2025

The concentrations of dissolved N2O in river systems at the basin scale exhibit significant spatial and temporal variability, particularly under diverse landscape conditions. This study focused on a temperate basin—the Yiluo River (YLR) China—to investigate variations indirect emission factors (EF5r) between dry wet seasons. differences among tributaries were analyzed to assess impact land use types. findings revealed that saturation levels lower during season both main streams tributaries. In season, strongly correlated with NH4+-N, NO3−-N, oxidation–reduction potential (ORP) (R2 = 0.743, p < 0.001), while phosphorus (DP), water temperature (Tw), DOC 0.640, 0.001). Impervious was identified as primary source nitrogen seasons, rather than cropland. Natural land, shrubland, demonstrated notable mitigating effect accumulation played role reducing NO3−-N levels. YLR exhibited EF5r values (0.005–0.052%) compared default value recommended by IPCC, decrease observed (p Data analysis indicated nutrient dynamics, ratio organic carbon (DOC/NO3−-N), DP (NO3−-N/DP), significantly EF5r. These results underscore need re-evaluate regional potentials provide new insights into emissions through strategic management.

Language: Английский

Citations

0