Urban hydrogeology: Transport routes and mixing of water and solutes in a groundwater influenced urban lowland catchment

Yu, Liang; Rozemeijer, Joachim; Velde, Ype van der; Breukelen, Boris M. van; Ouboter, Maarten; Broers, Hans Peter

doi:10.1016/j.scitotenv.2019.04.428

Cited by 14 publications

(29 citation statements)

References 38 publications

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“…Nevertheless, as the human population continues to rise, increasing proportions of catchments are indeed being subject to more intensive disturbance and are undergoing major land use change (Mirus, Ebel, Mohr, & Zegre, ). In such landscapes, understanding the evolution of water age and the changing hydrological behaviour of the system can be challenging (Yu et al, ), as land management has the potential to induce complex scale‐dependent change (Thompson et al, ). Therefore, it is important to consider disturbed catchments in water age studies, as the resulting insights into the effects on water and contaminant transport can have important implications for management decisions in an era of unprecedented environmental change (Hrachowitz et al, ; Savenije, Hoekstra, & Van Der Zaag, ).…”

Section: Introductionmentioning

confidence: 99%

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Using isotopes to understand the evolution of water ages in disturbed mixed land‐use catchments

Dimitrova‐Petrova

Geris

Wilkinson

et al. 2020

Hydrological Processes

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Tracer studies have been key to unravelling catchment hydrological processes, yet most insights have been gained in environments with relatively low human impact.We investigated the spatial variability of stream isotopes and water ages to infer dominant flow paths in a~10-km 2 nested catchment in a disturbed, predominantly agricultural environment in Scotland. We collected long-term (>5 years) stable isotope data of precipitation, artificial drainage, and four streams with varying soil and land use types in their catchment areas. Using a gamma model, Mean Transit Times (MTTs) were then estimated in order to understand the spatial variability of controls on water ages. Despite contrasting catchment characteristics, we found that MTTs in the streams were generally very similar and short (<1 year). MTTs of water in artificial drains were even shorter, ranging between 1 to 10 months for a typical field drain and <0.5 to 1 month for a country road drain. At the catchment scale, lack of heterogeneity in the response could be explained by the extensive artificial surface and subsurface drainage, "short-circuiting" younger water to the streams during storms. Under such conditions, additional intense disturbance associated with highway construction during the study period had no major effect on the stream isotope dynamics. Supplementary short-term (~14 months) sampling of mobile soil water in dominant soil-land use units also revealed that agricultural practices (ploughing of poorly draining soils and soil compaction due to grazing on freely draining soils) resulted in subtle MTT variations in soil water in the upper profile. Overall, the isotope dynamics and inferred MTTs suggest that the evolution of stream water ages in such a complex human-influenced environment are largely related to near-surface soil processes and the dominant soil management practices. This has direct implications for understanding and managing flood risk and contaminant transport in such environments. K E Y W O R D Sagricultural catchment, Anthropocene hydrology, artificial drainage, gamma model, land use management, soil water isotopes, transit times, water isotopes

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Section: Introductionmentioning

confidence: 99%

“…A further major land use with profound effects on the way water is stored and flows through landscapes is urbanization and road infrastructure, which increases impermeable surface cover. This typically increases runoff and shortens hydrological travel times (Soulsby et al, ; Soulsby et al, ; Yu et al, ).…”

Section: Introductionmentioning

confidence: 99%

Using isotopes to understand the evolution of water ages in disturbed mixed land‐use catchments

Dimitrova‐Petrova

Geris

Wilkinson

et al. 2020

Hydrological Processes

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“…Due to the high salt concentration of the seepage water, EC is a conservative water quality parameter (EC varies with Cl concentration in the ditch water, see supplement Figure S1 EC vs. Cl), which makes it a good index for linking groundwater and surface water in this system (see also Yu et al, 2019). In the model, seepage rate was adapted to get the best fit between the modeled and the measured EC.…”

Section: Data Processing and Analysismentioning

confidence: 99%

“…Eutrophication is one of the most notorious phenomena of water quality impairment in cities, caused by excess inputs of N and P from wastewater treatment plants, storm runoff, overflow of sewage systems in cities with combined drainage systems, manure and fertilizer application in urban green areas and atmospheric deposition (Walsh et al, 2005;Kabenge et al, 2016;Toor et al, 2017;Yang & Toor, 2018;Putt et al, 2019). Recently, groundwater has been identified as another important source of N and P in cities situated in low-lying deltas (Yu et al, 2018(Yu et al, & 2019. The upwelling nutrients in groundwater, originating from the organic rich delta subsurface, end up in the surface water of cities and are transferred to downstream waters and https://doi.org/10.5194/hess-2020-34 Preprint.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous study on the water quality of Amsterdam (Yu et al, 2019), the transport routes of N and P from groundwater to surface water through seepage and drains were identified. In addition, spatial and temporal concentration patterns from discrete sampling campaigns showed a clear dilution pattern of other water quality parameters such as EC.…”

Section: Introductionmentioning

confidence: 99%

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Drivers of nitrogen and phosphorus dynamics in a groundwater-fed urban catchment revealed by high frequency monitoring

Yu¹,

Rozemeijer²,

Broers³

et al. 2020

Preprint

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Abstract. Eutrophication of water bodies has been a problem causing severe degradation of water quality in cities. To gain mechanistic understanding of the temporal dynamics of nitrogen and phosphorus in a groundwater fed low-lying urban polder, we applied high frequency monitoring in Geuzenveld, a polder in the city of Amsterdam. The high frequency monitoring equipment was installed at the pumping station where water leaves the polder. From 2016 March to 2017 June, total phosphorus (TP), ammonium (NH4), turbidity, electrical conductivity (EC), and water temperature were measured at intervals smaller than 20 minutes. This paper discusses the results at three time scales: annual scale, rain event scale, and single pumping event scale. Mixing of upwelling groundwater and runoff was the dominant hydrological process and governed the temporal pattern of the EC, while N and P fluxes from the polder were also significantly regulated by primary production and iron transformations. The mixing of groundwater and runoff water governed water quality through variation of the intensity and duration of the events. For NH4, the dominant form of N in surface water originating from groundwater seepage, we observed low concentrations during the algae growing season, while concentrations were governed by mixing of groundwater and precipitation inputs in the late autumn and winter. The depletion of dissolved NH4 in spring suggests uptake by primary producers, consistent with high chlorophyll-a, O2, and suspended solids during this period. Total P and turbidity were high during winter, due to the release of reduced iron and P from anoxic sediment to the water column. Rapid Fe2+ oxidation in the water column is the major cause of turbidity. In the other seasons, P is retained in the sediment by iron oxides. Nitrogen is exported from the polder to the downstream water bodies throughout the whole year, mostly in the form of NH4, but as organic N in spring. P leaves the polder mainly during winter, primarily associated with Fe(OH)3 colloids and as dissolved P. Based on this new understanding of the dynamics of N and P in this low lying urban catchment, it is possible to formulate management strategies that can effectively control and reduce eutrophication situation in urban polders and receiving downstream waters.

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History of the hydrogeochemical study of groundwater in the Netherlands and the research motives

Griffioen

2023

Hydrogeol J

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An overview is presented of research on the hydrogeochemical aspects of groundwater resources in the Netherlands conducted since the early nineteenth century. The earliest studies investigated groundwater as a resource for drinking water. The first systematic, national study was in 1868 and was motivated by the cholera epidemics at that time. At the beginning of the twentieth century, research for drinking water production was institutionalised at national level. Since the 1960s, the range of organisations involved in hydrogeochemical research has broadened. Societal motives are also identified: shallow, biogenic methane as fossil fuel (already researched since the 1890s); groundwater contamination; freshening/salinisation of aquifers; ecohydrology and nature conservation; aquifer thermal energy storage; national and regional groundwater monitoring for policy evaluation; impact of climate change and weather variability; and occurrence of brackish groundwater and brines in the deeper subsurface. The last-mentioned has been driven by a series of motives ranging from water supply for recreational spas and mineral water production to subsurface disposal of radioactive waste. There have been two major scientific drivers: the introduction of techniques for using isotopes as tracers, and geochemical computer modelling. Another recent development has been the increasing capabilities in analytical chemistry in relation to the contamination of groundwater with emerging pollutants. Many of the motives for research emerged in the 1980s. Overall, the societal and associated technical motives turn out to be more important than the scientific motives for hydrogeochemical research on groundwater in the Netherlands. Once a research motive has emerged, it commonly tends to remain.

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Urban hydrogeology: Transport routes and mixing of water and solutes in a groundwater influenced urban lowland catchment

Cited by 14 publications

References 38 publications

Using isotopes to understand the evolution of water ages in disturbed mixed land‐use catchments

Using isotopes to understand the evolution of water ages in disturbed mixed land‐use catchments

Drivers of nitrogen and phosphorus dynamics in a groundwater-fed urban catchment revealed by high frequency monitoring

History of the hydrogeochemical study of groundwater in the Netherlands and the research motives

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