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Cited by 57Hydrology and Watershed Management StudiesFire effects on ecosystemsGroundwater and Isotope Geochemistry

Impact of wildfire on source water contributions in Devil Creek, CA: evidence from end-member mixing analysis.

Jung, Helen Y., Hogue, Terri S., Rademacher, Laura K., Meixner, Tom·2009·Hydrological Processes
DOI 10.1002/hyp.7132
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Abstract

A geochemical and end‐member mixing analysis (EMMA) is undertaken in Devil Canyon catchment, located in southern California, to further understanding of watershed behaviour and source water contributions after an acute and extensive wildfire. Physical and chemical transformations in post‐fire watersheds are known to increase overland flow and decrease infiltration, mainly due to formation of a hydrophobic layer at, or near, the soil surface. However, less is known about subsurface flow response in burned watersheds. The current study incorporates EMMA to evaluate and quantify source water contributions before, and after, a catchment affected by wildfires in southern California during the fall of 2003. Pre‐ and post‐fire stream water data were available at several sampling sites within the catchment, allowing the identification of contributing water sources at varying spatial scales. Proposed end‐member observations (groundwater, overland flow, shallow subsurface flow) were also collected to constrain and develop the catchment mixing model. Post‐fire source water changes are more evident in the smaller and faster responding sub‐basin (interior sampling point). Early post‐fire storm events are dominated by overland flow with no significant soil water or groundwater flow contribution. Inter‐storm streamwater in this smaller basin shows an increase in groundwater and a decrease in soil water. In the larger, baseflow‐dominated system, source water components appear less affected by fire. A slight increase in lateral flow is observed with only a slight decrease in baseflow. Changes in the post‐fire flow regimes affect nutrient loading and chemical response of the basin. Relatively rapid recovery of the chaparral ecosystem is evidenced, with active re‐growth and evapotranspiration evidenced by the fourth post‐fire rainy season. Copyright © 2008 John Wiley & Sons, Ltd.

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  • It is unclear why the solubility of Ca is notably higher in the CAN ash, but it may be responsible for the reduced PO4 levels in the CAN leachate as P has a tendency to precipitate in the presence of Ca.

    “It is unclear why the solubility of Ca is notably higher in the CAN ash in comparison with the other ash types (Jung et al. 2009;Brito et al. 2017), but it may be responsible for the reduced PO 4 3À levels (1.2 mg kg À1 ) in the CAN leachate as P has a tendency to precipitate in the presence of Ca (Diaz et al. 1994).”

    From Chemical composition of wildfire ash produced in contrasting ecosystems and its toxicity to Daphnia magna (2019) · cites this paper as Jung et al. 2009

  • These results are similar to those found in other studies assessing post-fire runoff and ash leachates in a range of ecosystem types.

    “These results are similar to those found in other studies assessing post-fire runoff and ash leachates in a range of ecosystem types (Jung et al. 2009;Pereira et al. 2011) and in agreement with the general concentration trend of alkali (Na, K) .alkaline (Ca, Mg) .. heavy metals (Pb, Cd and Hg) found by Santı ´n et al. (2015) in eucalypt forest ash.”

    From Chemical composition of wildfire ash produced in contrasting ecosystems and its toxicity to Daphnia magna (2019) · cites this paper as Jung et al. 2009

  • B and Na are often found in high concentrations in ash leachates, particularly B in other eucalyptus ash tested.

    “These elements are often found in high concentrations in ash leachates (Jung et al. 2009;Pereira et al. 2011), particularly B in other eucalyptus ash tested (Freitas and Rocha 2011).”

    From Chemical composition of wildfire ash produced in contrasting ecosystems and its toxicity to Daphnia magna (2019) · cites this paper as Jung et al. 2009

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Authors
Jung, H. Y., Hogue, T. S., Rademacher, L. K., & Meixner, T.
Affiliations
  • University of California, Los Angeles (US)
  • University of the Pacific (US)
  • University of Arizona (US)
Corresponding author
Hogue, Terri S.
ORCID
Venue
Hydrological Processes
Publisher
Wiley
Published
2008-10-07
Volume
23
Issue
2
Pages
183-200
ISSN
  • 0885-6087 (ISSN-L)
  • 1099-1085
DOI
10.1002/hyp.7132
OpenAlex
W1999759141
Cited by
57
References
71
Citations by year
2026: 3 · 2025: 5 · 2024: 8 · 2023: 4 · 2022: 3 · 2021: 3 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 3 · 2016: 3 · 2015: 1 · 2014: 3 · 2013: 6 · 2012: 2
FWCI
2.93
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
Hydrological Processes (publishedVersion)
Funders
  • National Science Foundation
  • University of Arizona
  • Core Research for Evolutional Science and Technology
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Hydrology and Watershed Management Studies
  • Physical Sciences › Environmental Science › Global and Planetary Change › Fire effects on ecosystems
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Groundwater and Isotope Geochemistry
Keywords
end-member mixing, post-fire hydrology, surface runoff, groundwater contribution, subsurface flow, baseflow, soil water, nutrient loading, stream water geochemistry

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