Dissolved organic carbon load variability in the rainfall season dominated its interannual variability in the snowmelt driven basin: Evidence from 41 years data of headwater streams

Numerous reports have observed variations of dissolved organic carbon (DOC) under the changing environment. From the DOC load variability perspective, however, how much of the variability in DOC load occurred among different seasons, and which season was most synchronized with the interannual variability remains unknown. The weekly DOC concentration and daily discharge records from four headwater streams with long‐term (1978–2018) records in the snowmelt driven basin of Harp Lake, south‐central Ontario, Canada, were used to answer these issues. We also examined the contributions of variabilities in discharge and DOC concentration to the variability in DOC load. We found that the variability of DOC load in the rainfall season (autumn) instead of snowmelt season (spring) was most closely synchronized with its interannual variability, suggesting that if the DOC variability in the rainfall season stabilized, the interannual variability would be more stable. The interannual variabilities for discharge, DOC concentration and DOC load showed an insignificant decreasing trend in the monitored 41 years, and the respective contributions of the variability trend of discharge and DOC concentration to DOC load in rainfall season increased from 28.82% to 144.58% and decreased from 71.18% to −44.58% because the change trend of discharge variability was greater than that in DOC concentration. This study provides a case information in determining which factors contribute most to the variability of DOC load in the watershed, and which season may dominate its variability throughout the year.

[1]  H. Yao,et al.  Dissolved organic carbon response to hydrological drought characteristics: Based on long-term measurements of headwater streams. , 2022, Water research.

[2]  H. Yao,et al.  The DESC catchments: Long‐term monitoring of inland Precambrian shield catchment streamflow and water chemistry in Central Ontario, Canada , 2022, Hydrological Processes.

[3]  A. Knapp,et al.  Compound hydroclimatic extremes in a semi‐arid grassland: Drought, deluge, and the carbon cycle , 2022, Global change biology.

[4]  S. Higgins,et al.  Spring coherence in dissolved organic carbon export dominates total coherence in Boreal Shield forested catchments , 2021, Environmental Research Letters.

[5]  K. Devito,et al.  Characteristics of Dissolved Organic Carbon in Boreal Lakes: High Spatial and Inter‐Annual Variability Controlled by Landscape Attributes and Wet‐Dry Periods , 2021 .

[6]  A. Nazemi,et al.  Informing Stochastic Streamflow Generation by Large-Scale Climate Indices at Single and Multiple Sites , 2021, Advances in Water Resources.

[7]  J. Fleckenstein,et al.  Low hydrological connectivity after summer drought inhibits DOC export in a forested headwater catchment , 2021, Hydrology and Earth System Sciences.

[8]  Lesley B. Knoll,et al.  Earlier winter/spring runoff and snowmelt during warmer winters lead to lower summer chlorophyll‐a in north temperate lakes , 2021, Global change biology.

[9]  B. Dousova,et al.  Thermal stability of arsenic complexes in soils. , 2021, Journal of hazardous materials.

[10]  G. Bonan,et al.  The signature of internal variability in the terrestrial carbon cycle , 2021, Environmental Research Letters.

[11]  A. James,et al.  Contrasting long-term trends of chloride levels in remote and human-disturbed lakes in south-central Ontario, Canada , 2020 .

[12]  D. Blowes,et al.  Impact of multiple drying and rewetting events on biochar amendments for Hg stabilization in floodplain soil from South River, VA. , 2020, Chemosphere.

[13]  Dominic A. Libera,et al.  The Roles of Climate Forcing and Its Variability on Streamflow at Daily, Monthly, Annual, and Long‐Term Scales , 2020, Water Resources Research.

[14]  K. Puczko,et al.  Extreme Hydro-Meteorological Events Influence to Water Quality of Small Rivers in Urban Area: A Case Study in Northeast Poland , 2020, Scientific Reports.

[15]  H. Yao,et al.  Dissolved organic carbon in eastern Canadian lakes: Novel patterns and relationships with regional and global factors. , 2020, The Science of the total environment.

[16]  H. Laudon,et al.  Changing Source‐Transport Dynamics Drive Differential Browning Trends in a Boreal Stream Network , 2020, Water Resources Research.

[17]  J. Holden,et al.  Increased Dissolved Organic Carbon Concentrations in Peat‐Fed UK Water Supplies Under Future Climate and Sulfate Deposition Scenarios , 2020, Water Resources Research.

[18]  J. Smol,et al.  The browning and re-browning of lakes: Divergent lake-water organic carbon trends linked to acid deposition and climate change , 2019, Scientific Reports.

[19]  Xuezhi Tan,et al.  Trends in Persistent Seasonal-Scale Atmospheric Circulation Patterns Responsible for Seasonal Precipitation Totals and Occurrences of Precipitation Extremes over Canada , 2019, Journal of Climate.

[20]  A. Sokolov,et al.  Underestimating Internal Variability Leads to Narrow Estimates of Climate System Properties , 2019, Geophysical Research Letters.

[21]  H. Laudon,et al.  Contrasting responses in dissolved organic carbon to extreme climate events from adjacent boreal landscapes in Northern Sweden , 2019, Environmental Research Letters.

[22]  J. Lapierre,et al.  Global Meta‐Analysis on the Relationship Between Mercury and Dissolved Organic Carbon in Freshwater Environments , 2019, Journal of Geophysical Research: Biogeosciences.

[23]  P. Jacinthe,et al.  Characterization of CDOM in saline and freshwater lakes across China using spectroscopic analysis. , 2019, Water research.

[24]  C. Duffy,et al.  Drivers of interannual and intra‐annual variability of dissolved organic carbon concentration in the River Thames between 1884 and 2013 , 2019, Hydrological Processes.

[25]  G. Hegerl,et al.  Role of the North Atlantic Oscillation in decadal temperature trends , 2017 .

[26]  D. McKnight,et al.  Concentration‐discharge relationships during an extreme event: Contrasting behavior of solutes and changes to chemical quality of dissolved organic material in the Boulder Creek Watershed during the September 2013 flood , 2017 .

[27]  Joanna M. Clark,et al.  The effect of drought on dissolved organic carbon (DOC) release from peatland soil and vegetation sources , 2017 .

[28]  E. Boyer,et al.  Wet atmospheric deposition of organic carbon: An underreported source of carbon to watersheds in the northeastern United States , 2017 .

[29]  A J Wade,et al.  Modelling impacts of atmospheric deposition and temperature on long-term DOC trends. , 2017, The Science of the total environment.

[30]  C. Alewell,et al.  Water and solute dynamics during rainfall events in headwater catchments in the Central Swiss Alps under the influence of green alder shrubs and wetland soils , 2016 .

[31]  A. Butturini,et al.  Hydrological conditions control in situ DOM retention and release along a Mediterranean river. , 2016, Water research.

[32]  M. Grabowska,et al.  Influence of changeable hydro‐meteorological conditions on dissolved organic carbon and bacterioplankton abundance in a hypertrophic reservoir and downstream river , 2016 .

[33]  A. James,et al.  Relative contributions of stream concentration, stream discharge and shoreline load to base cation trends in Red Chalk and Harp lakes, south‐central Ontario, Canada , 2016 .

[34]  L. Castello,et al.  Large‐scale degradation of Amazonian freshwater ecosystems , 2016, Global change biology.

[35]  Huaxia Yao,et al.  Trends of ice breakup date in south‐central Ontario , 2015 .

[36]  L. Ran,et al.  Climatic and anthropogenic impacts on runoff changes in the Songhua River basin over the last 56 years (1955–2010), Northeastern China , 2015 .

[37]  D. O. Hessen,et al.  The Absorption of Light in Lakes: Negative Impact of Dissolved Organic Carbon on Primary Productivity , 2014, Ecosystems.

[38]  Pierre Friedlingstein,et al.  Uncertainties in CMIP5 Climate Projections due to Carbon Cycle Feedbacks , 2014 .

[39]  Young-il Kim,et al.  Dissolved organic carbon and total dissolved nitrogen production by boreal soils and litter: the role of flooding, oxygen concentration, and temperature , 2014, Biogeochemistry.

[40]  J. McIntosh,et al.  Stream water carbon controls in seasonally snow-covered mountain catchments: impact of inter-annual variability of water fluxes, catchment aspect and seasonal processes , 2014, Biogeochemistry.

[41]  Xiaokun Zhao,et al.  Quantitative estimation of the impact of precipitation and human activities on runoff change of the Huangfuchuan River Basin , 2012, Journal of Geographical Sciences.

[42]  G. Likens,et al.  The effect of seasonal drying on sulphate dynamics in streams across southeastern Canada and the northeastern USA , 2012, Biogeochemistry.

[43]  C. Gagnon,et al.  Increases of dissolved organic carbon in temperate and boreal lakes in Quebec, Canada , 2012, Environmental Science and Pollution Research.

[44]  W. Granéli,et al.  Effects of fetch and dissolved organic carbon on epilimnion depth and light climate in small forest lakes in southern Sweden , 2010 .

[45]  R. Hesslein,et al.  Long‐term patterns of dissolved organic carbon in lakes across eastern Canada: Evidence of a pronounced climate effect , 2010 .

[46]  Doerthe Tetzlaff,et al.  Influence of hydrology and seasonality on DOC exports from three contrasting upland catchments , 2008 .

[47]  J. Buttle,et al.  Influence of seasonal changes in runoff and extreme events on dissolved organic carbon trends in wetland- and upland-draining streams , 2008 .

[48]  Dong-sheng Wang,et al.  Seasonal variations of chemical and physical characteristics of dissolved organic matter and trihalomethane precursors in a reservoir: a case study. , 2008, Journal of hazardous materials.

[49]  Aaron I. Packman,et al.  Biophysical controls on organic carbon fluxes in fluvial networks , 2008 .

[50]  D. Ashby,et al.  Sample size for cluster randomized trials: effect of coefficient of variation of cluster size and analysis method. , 2006, International journal of epidemiology.

[51]  P. Ciais,et al.  The impact of lateral carbon fluxes on the European carbon balance , 2006 .

[52]  Joanna M. Clark,et al.  Suppression of dissolved organic carbon by sulfate induced acidification during simulated droughts. , 2006, Environmental science & technology.

[53]  Jamie R. Lead,et al.  Dissolved Organic Carbon , 2005 .

[54]  S. Findlay.  Increased carbon transport in the Hudson River: unexpected consequence of nitrogen deposition? , 2005 .

[55]  D. Hongve,et al.  Increased colour and organic acid concentrations in Norwegian forest lakes and drinking water – a result of increased precipitation? , 2004, Aquatic Sciences.

[56]  D. Monteith,et al.  Export of organic carbon from peat soils , 2001, Nature.

[57]  B. Hapke.  The absorption of light , 1993 .

[58]  D. Faber,et al.  Applicability of the coefficient of variation method for analyzing synaptic plasticity. , 1991, Biophysical journal.