Beyond fill and spill: Hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the Hudson Bay Lowlands, Canada

Balliston, Nicole; Price, Jonathan

doi:10.1002/hyp.14575

Cited by 6 publications

(3 citation statements)

References 54 publications

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“…For example, McCarter and Price (2017) demonstrated a non‐stepwise expansion of contributing areas in a patterned fen with ridge‐flark microtopography, where ridge transmissivity increased exponentially as the water table rose into the upper 0.1 m of peat. Furthermore, Balliston and Price (2022) in a patterned bog‐fen complex showed that warmer‐than‐average springtime temperatures accelerated snowmelt faster than seasonal frost could sufficiently thaw in the fen, allowing snowmelt run‐off from the bog to short‐circuit and flow into the stream channel without replenishing fen storage. Consequently, during the summertime, hydrological connectivity was lower and threshold requirements were higher.…”

Section: Discussionmentioning

confidence: 99%

“…rose into the upper 0.1 m of peat. Furthermore, Balliston and Price (2022) in a patterned bog-fen complex showed that warmer-thanaverage springtime temperatures accelerated snowmelt faster than seasonal frost could sufficiently thaw in the fen, allowing snowmelt run-off from the bog to short-circuit and flow into the stream channel without replenishing fen storage. Consequently, during the summertime, hydrological connectivity was lower and threshold requirements were higher.…”

Section: Apparent Hydrological Functionmentioning

confidence: 99%

“…At smaller scales, there has been a substantial number of process‐based studies that show the complexity of water movement in peatland soils (e.g., Beckwith et al, 2003; Quinton et al, 2009; Rezanezhad et al, 2016), microtopographic features (e.g., Balliston et al, 2018; McCarter & Price, 2017; Waddington et al, 2010), induvial forms (e.g., Branfireun & Roulet, 1998; Kværner & Kløve, 2008; Rouse, 1998), and complexes (e.g., Balliston & Price, 2022; Connon et al, 2015; Price & Maloney, 1994). Given feasibility limitations, process studies rarely examine the very large ‘landscape’ scale (e.g., Richardson et al, 2012), considered herein.…”

Section: Conceptual Approachmentioning

confidence: 99%

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Vulnerability assessment of peatland complexes in the Hudson Plains (Ontario, Canada) to permafrost‐thaw‐induced landcover and hydrological change using a multiscale approach

et al. 2023

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The Hudson Plains, Canada, is one of the largest, undisturbed peatland regions (370,000 km2) in the world. Air temperature in the Hudson Plains is increasing rapidly leading to unprecedented permafrost thaw. The region's remoteness has hindered our knowledge of how permafrost thaw alters peatland land cover and hydrological response at multiple scales. To assess which landscapes in the Hudson Plains are vulnerable to such disturbances, we analysed latitudinal distributions of land cover over a 300‐km transect spanning the sporadic (<30% areal) to continuous (>80% areal) permafrost zone in northern Ontario and quantified land cover changes over 40 years using multiple remote sensing datasets (lidar, air photographs, and high‐resolution satellite imagery). We then evaluated these landscapes at a fundamental hydrological unit, the peatland complex, identified five peatland complex types, and conceptualized their potential hydrological response using circuitry analogues. Over four decades, we found that permafrost peatlands declined by 4%, 8.5%, and 2% areal in the sporadic, discontinuous, and continuous permafrost zones, respectively. Circuitry analogues partitioned peatland complexes into their component peatland forms (e.g., permafrost peatland, bog, and fen) and represented each component's hydrological function using an electrical equivalent (e.g., generator, switch, and conductor). When interpreted at the landscape scale, circuitry analogues demonstrated latitudinal patterns in landscape structure (i.e., circuitry wiring) and indicated where permafrost thaw will have the greatest impact on landscape structure (i.e., rewiring) and therefore hydrological response. Based on these analyses, we suggest a 60‐km latitudinal segment (54.5°N to 54.9°N) where peatland complexes are most vulnerable to permafrost‐thaw‐induced land cover and hydrological change and should therefore be the focus of future research and monitoring efforts.

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Section: Discussionmentioning

confidence: 99%

Section: Apparent Hydrological Functionmentioning

confidence: 99%