Document


Title

Meta-analysis of field-saturated hydraulic conductivity recovery following wildland fire: applications for hydrologic model parameterization and resilience assessment
Document Type: Journal Article
Author(s): B. A. Ebel; D. A. Martin
Publication Year: 2017

Cataloging Information

Keyword(s):
  • aggregate stability
  • burn severity
  • Colorado Front Range
  • fire frequency
  • hydraulic conductivity
  • hydrology
  • postfire runoff
  • recovery
  • resilience
  • soil erosion
  • soil hydraulic property
  • soil organic matter
  • Soil-Water Repellency
  • southeastern Australia
  • vegetation recovery
  • wildfire-affected soils
  • wildfires
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 55628
Tall Timbers Record Number: 33701
TTRS Location Status: Not in file
TTRS Call Number: Available
TTRS Abstract Status: Fair use

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

Hydrologic recovery after wildfire is critical for restoring the ecosystem services of protecting of human lives and infrastructure from hazards and delivering water supply of sufficient quality and quantity. Recovery of soil-hydraulic properties, such as field-saturated hydraulic conductivity (Kfs), is a key factor for assessing the duration of watershed-scale flash flood and debris flow risks after wildfire. Despite the crucial role of Kfs in parameterizing numerical hydrologic models to predict the magnitude of postwildfire run-off and erosion, existing quantitative relations to predict Kfs recovery with time since wildfire are lacking. Here, we conduct meta-analyses of 5 datasets from the literature that measure or estimate Kfs with time since wildfire for longer than 3-year duration. The meta-analyses focus on fitting 2 quantitative relations (linear and non-linear logistic) to explain trends in Kfs temporal recovery. The 2 relations adequately described temporal recovery except for 1 site where macropore flow dominated infiltration and Kfs recovery. This work also suggests that Kfs can have low hydrologic resistance (large postfire changes), and moderate to high hydrologic stability (recovery time relative to disturbance recurrence interval) and resilience (recovery of hydrologic function and provision of ecosystem services). Future Kfs relations could more explicitly incorporate processes such as soil-water repellency, ground cover and soil structure regeneration, macropore recovery, and vegetation regrowth. © 2017 John Wiley & Sons Ltd.

Online Link(s):
Citation:
Ebel, B. A., and D. A. Martin. 2017. Meta-analysis of field-saturated hydraulic conductivity recovery following wildland fire: applications for hydrologic model parameterization and resilience assessment. Hydrological Processes, v. 31, no. 21, p. 3682-3696. 10.1002/hyp.11288.