Event water detection in tile drainage runoff using stable isotopes and a water temperature in small agricultural catchment in Bohemian-Moravian Highlands, Czech Republic

Zajíček, Antonín; Pomije, Tomáš; Kvítek, Tomáš

doi:10.1007/s12665-016-5561-1

Cited by 14 publications

(11 citation statements)

References 61 publications

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“…In general, the relatively small share of REs for N-NO 3 loads is explained as a dilution of nitrate-rich drainage water by rain water during the majority of the REs, both on grassed as well as on ploughed sites, as discovered also by other studies [4,17,44]. The highest share of REs in N-NO 3 loads was measured in the N-overfertilized catchments (PD1, PD2; RE share up to 61%) and at site P53 (RE share on average 51%), which had a profound episodic runoff pattern (some months were almost without regular flow).…”

Section: Runoff Events and Their Proportion On Total Runoff N And P supporting

confidence: 56%

“…In the recharge areas (upper slope parts, close to catchment boundaries), there are haplic and shallow haplic cambisols and cambic hyperskeletic leptosol (loamy sand/sandy loam) [41]. Artificial drainage is placed 0.9 to 1.1 m below the soil surface, drain spacing is between 10 to 18 m, and, since the drainage is built on slopes, the hydrologically contributing area (subcatchment) for a drainage group is far larger than the drained field itself [15,17,42,43]. The average annual precipitation at the sites ranged between 550 and 750 mm.…”

Section: Experimental Sitesmentioning

confidence: 99%

“…The beginning of a RE took place when the drainage discharge rose by 10% or more within 2 h. This eliminated short-term discharge changes during very low flow conditions or due to weir clogs. The end of a RE was set when the drainage water temperature became stable for >2 h so no event water appeared in the drainage discharge [17]. Runoff events with several flow peaks were considered as one RE if the time between the consecutive flow peaks was less than 24 h. The procedure for the identification of REs was applied to all REs, no matter whether they were sampled or not.…”

Section: Monitoring the Setup And Analyses Of Samplesmentioning

confidence: 99%

“…Intensively managed tile-drained landscapes have been found to have a considerable potential for N and P losses, with regard to different soil conditions and cropping systems, especially during periods with elevated flows [3][4][5][6][7][8][9]. Nutrient concentrations in drainage waters may change rapidly within a rainfall-runoff event due to variable pre-event and event soil/catchment moisture conditions, related soil biogeochemical processes [10][11][12][13], precipitation characteristics, and water flow paths into drainage and with different origin and residence times [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Incorporating Rainfall-Runoff Events into Nitrate-Nitrogen and Phosphorus Load Assessments for Small Tile-Drained Catchments

Fučík

Zajíček

Kaplická

et al. 2017

Water

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Rainfall-runoff events significantly influence water runoff and the loss of pollutants from tile-drained agricultural land. We monitored ten small (4 to 38 ha) tile-drained catchments in Czechia for three to five years (2012 to 2016). The discharge was measured continuously; a regular 14-day scheme of water quality monitoring was accompanied with event sampling provided by automatic samplers in 20 to 120 min intervals. A new semi-automated algorithm was developed for the identification of runoff events (RE) based on discharge and water temperature changes. We then quantified the share of RE on the total runoff and the N and P losses, and we compared six methods for nutrient load estimation on an annual and monthly basis. The results showed considerable differences among the monitored sites, seasons, and applied methods. The share of RE on N loads was on average 5% to 30% of the total annual load, whereas for P (dissolved and total), the share of RE was on average 10% to 80% on the total annual load. The most precise method for nutrient load estimation included the RE. The methods based on point monitoring of the discharge and water quality underestimated the loads of N by 10% to 20% and of P by 30% to 80%. The acquired findings are crucial for the improvement of nutrient load assessment in tile-drained catchments, as well as for the design of various mitigation measures on tile-drained agricultural land.

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Section: Runoff Events and Their Proportion On Total Runoff N And P supporting

confidence: 56%

Section: Experimental Sitesmentioning

confidence: 99%

Section: Monitoring the Setup And Analyses Of Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Incorporating Rainfall-Runoff Events into Nitrate-Nitrogen and Phosphorus Load Assessments for Small Tile-Drained Catchments

Fučík

Zajíček

Kaplická

et al. 2017

Water

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“…Drainage spreads on 10.5% of catchment area; 16% of agricultural land is drained. It has been shown that the tile drainage runoff pattern in crystalline catchments (as our study area) is complicated [20].…”

Section: Study Areamentioning

confidence: 99%

Assessment of runoff nitrogen load reduction measures for agricultural catchments

et al. 2018

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Water quality in rural catchments is influenced by many societal and bio-physical factors (e.g. different pollution sources, land use and land cover changes). Good ecological status and surface water quality are currently challenged mainly due to different poorly identified pollution sources. The main objective of this study is to estimate the potential of different measures (land use changes and/or reduction in point sources) and their combinations in decreasing the nitrate-nitrogen load from Jankovský stream catchment. The eco-hydrological model SWIM, which simulates dynamics of nutrients in a catchment was used in the study. The simulations for scenario measures showed that nitrate-nitrogen loads at the outlet can be decreased more by reduction of municipal nitrate-nitrogen sources rather than by agricultural land-use change. Overall, the modeling results demonstrated that the most effective scenario was the combination of total reduction of municipal nitrate-nitrogen sources and agricultural land-use change.

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Surface‐to‐tile drain connectivity and phosphorus transport: Effect of antecedent soil moisture

Williams

Penn

King

et al. 2023

Hydrological Processes

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Macropores connecting surface soils to tile drains can alter water and nutrient transport through the subsurface. In this study, laboratory rainfall simulations with artificial macropores combined with edge‐of‐field monitoring were used to evaluate surface‐to‐tile drain connectivity and phosphorus (P) transport as a function of antecedent moisture conditions. Laboratory rainfall simulations using repacked soil boxes with different macropore layouts (i.e., no macropore, surface‐connected macropores, and disconnected macropores) were used to examine changes in water sources and flow pathways to tile drains with varying degrees of connectivity and antecedent wetness. Water, tracer, and P fluxes from a tile‐drained field were also monitored to quantify linkages among water flow pathways, antecedent wetness, and P delivery to tile drains. Both laboratory and field results showed that surface‐to‐tile drain connectivity was important for water transport through the subsurface under both dry and wet antecedent conditions. When soil conditions were dry, discharge was minimal and primarily comprised of event water that bypassed the soil matrix. Increasing wetness resulted in similar event water transport, but greater mobilization of stored pre‐event water and greater discharge; thus, the dominant source of tile water and the magnitude of tile discharge were substantially altered with changing antecedent moisture. Field data revealed that changes in drainage water source and discharge with increasing wetness impacted dissolved P transport. Dissolved P concentration decreased and loading increased with increasing wetness. Findings indicate that greater mobilization of pre‐event water under wet antecedent conditions acted as both a hydrologic and chemical buffer for subsurface dissolved P transport. Comparison of study results to water quality data from a larger edge‐of‐field network suggest that relationships between antecedent moisture conditions, water flow pathways, and P transport from the current study are broadly applicable across tile‐drained fields. Understanding processes controlling P delivery to tile drains has direct applicability for conservation practice implementation and improving process representation in models.

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Event water detection in tile drainage runoff using stable isotopes and a water temperature in small agricultural catchment in Bohemian-Moravian Highlands, Czech Republic

Cited by 14 publications

References 61 publications

Incorporating Rainfall-Runoff Events into Nitrate-Nitrogen and Phosphorus Load Assessments for Small Tile-Drained Catchments

Incorporating Rainfall-Runoff Events into Nitrate-Nitrogen and Phosphorus Load Assessments for Small Tile-Drained Catchments

Assessment of runoff nitrogen load reduction measures for agricultural catchments

Surface‐to‐tile drain connectivity and phosphorus transport: Effect of antecedent soil moisture

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