Dynamics of large woody debris in small streams disturbed by the 2001 Dogrib fire in the Alberta foothills

Jones, Terry; Daniels, Lori D.

doi:10.1016/j.foreco.2008.02.048

Cited by 52 publications

(56 citation statements)

References 41 publications

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“…(i) Burned status of the SW piece was assessed following Jones and Daniels (2008), using three classes (unburned: no char; moderately: charred bark but outermost ring present in at least one part of the circumference; heavily: charred bark and sapwood resulting in significant ring loss); (ii) Source tree (maritime pine, eucalyptus, cork oak, or "riparian species") was identified by assessing morphological characteristics of the wood piece; (iii) Length in meters was determined to the nearest 0.2 m for the segments of the pieces that were >1 cm in diameter. We measured length using a meter tape for pieces >6 m long, and estimated length for pieces <6 m (verified for the first 20 pieces per reach); (iv) Diameter was determined to the nearest 0.5 cm by a single measurement taken from a point considered the mean diameter by visual assessment.…”

Section: Data Collectionmentioning

confidence: 99%

Which stream wood becomes functional following wildfires?

Vaz¹,

Merten²,

Warren³

et al. 2013

Ecological Engineering

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a b s t r a c tLarge wood is a critical element in stream ecosystems, but only a subset of wood pieces actually provide hydraulic, geomorphic, and ecological functions. We test the current paradigm that larger pieces provide more function, and examine the role wildfires may play in affecting functionality of recruited wood. We conducted a cross-basin analysis in nine central Portugal watersheds, obtaining a variety of measurements on 1483 wood pieces (diameter ≥ 0.05 m; length ≥ 0.5 m) in 27 streams burned within six years prior. We examined nonlinear relationships and indirect effects on function using Generalized Additive Modeling and Structural Equation Modeling. Variables with direct effects on function were piece diameter, rootwads, anchoring, position (bridging, ramping, loose), longitudinal distance along the stream continuum, and the ratio of piece length to channel width. The effect of length ratio on function was nonlinear. Relatively long pieces were more likely to be functional until they were ∼3 times the channel width, at which point longer pieces became less likely to be functional. Post-fire wood likely lacked complexity and longer pieces were more likely to be bridging; both conditions may have prohibited them from interacting with the wetted area. Wildfires had indirect effects on function. Burned pieces were more likely to be large in diameter (thus more likely functional) but not anchored (thus less likely functional); these antagonistic effects may be the reason burned status had no direct effect on function. Our results challenge the wellestablished idea that the function of wood in streams is simply a matter of wood size, along with indicators of longevity (e.g. stability and decay status). Relatively long pieces may in fact provide less function to the stream, at least until they break or are transported further downstream. Practitioners installing wood to streams should consider pieces with wide diameter and rootwads, approximately 3 times the channel width, and anchored but not bridging the channel.

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Section: Data Collectionmentioning

confidence: 99%

Which stream wood becomes functional following wildfires?

Vaz¹,

Merten²,

Warren³

et al. 2013

Ecological Engineering

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“…However, removal of riparian forest may adversely affect thermal regime (see reviews in Morash 2001, Steedman et al 2004), inputs of fine organic matter (Webster and Waide 1982, Webster et al 1990, Hartman et al 1996, and recruitment of coarse woody material (Dolloff and Webster 2000, Meleason et al 2003, Jones andDaniels 2008). Stream temperature typically is influenced by forest within 10 to 30 m of shorelines depending on tree height and canopy density (Barton et al 1985, Castelle et al 1994, Sridhar et al 2004, Wilkerson et al 2006).…”

Section: Thoughtfully Plannedmentioning

confidence: 99%

Emulation of natural disturbance (END) for riparian forest management: synthesis and recommendations

et al. 2012

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“…Longitudinal transfer of LW along a stream is influenced by the characteristics of the wood pieces (storage and diameter, length, and wood density), the morphology of the channel (dimensions of bankfull channel, slope, bed forms and roughness) and flow conditions [4] and [5]. The amount and longitudinal distribution of wood have been studied in many rivers of the world, and findings demonstrate that wood distribution depends on land use at the basin scale, size of the basin, fire disturbance, flow regime, riparian vegetation, and morphology of the river [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

“…The amount and longitudinal distribution of wood have been studied in many rivers of the world, and findings demonstrate that wood distribution depends on land use at the basin scale, size of the basin, fire disturbance, flow regime, riparian vegetation, and morphology of the river [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

Large Wood Volume and Longitudinal Distribution in Channel Segments Draining Catchments with Different Land Use, Chile

Iroumé¹,

Mao²,

Ulloa³

et al. 2014

OJMH

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The storage, longitudinal distribution and recruitment processes of in-stream large wood (LW) were studied comparing channel segments draining four Chilean mountain catchments with different land use. The segments were divided into relatively uniform reaches of different lengths and surveyed for LW (piece dimensions, position in the channel, orientation to flow and aggregation) and stream morphology (slope and bank full channel width and depth) characterizations. LW volume stored in the Pichun, El Toro and Vuelta de Zorra study channels are within the range informed in international researches from streams draining catchments with similar forest covers. However, the 1057 m 3 /ha of LW stored in Tres Arroyos is extremely high and in the same order of magnitude than the reports from old-growth forests in the Pacific Northwest of USA. The size of the area that can potentially provide wood to streams depends on the wood supply mechanisms within any catchment, and the LW stored in the study segments increases as the size of this area increases. This study aims to contribute to the knowledge on the effects of LW in mountain channels, gathering new information and expanding investigations developed in Chile since 2008. This research was carried out within the framework of Project FONDECYT 11106209.

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Dynamics of large woody debris in small streams disturbed by the 2001 Dogrib fire in the Alberta foothills

Cited by 52 publications

References 41 publications

Which stream wood becomes functional following wildfires?

Which stream wood becomes functional following wildfires?

Emulation of natural disturbance (END) for riparian forest management: synthesis and recommendations

Large Wood Volume and Longitudinal Distribution in Channel Segments Draining Catchments with Different Land Use, Chile

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