LorenteParsonsMcIntireEtAl2013

Reference

Lorente, M., Parsons, W.F.J., McIntire, E.J.B. and Munson, A.D. (2013) Wildfire and forest harvest disturbances in the boreal forest leave different long-lasting spatial signatures. Plant and Soil, 364(1-2):39-54. (URL )

Abstract

Aims Natural disturbances leave long-term legacies that vary among landscapes and ecosystem types, and which become integral parts of successional processes at a given location. As humans change land use, not only are immediate post-disturbance patterns altered, but the processes of recovery themselves are likely altered by the disturbance. We assessed whether short-term effects on soil and vegetation that distinguish wildfire from forest harvest persist over 60 years after disturbance in boreal black spruce forests, or post-disturbance processes of recovery promote convergence of the two disturbance types. Methods Using semi-variograms and Principal Coordinates of Neighbour Matrices, we formulated precise, a priori spatial hypotheses to discriminate spatial signatures following wildfire and forest harvest both over the short- (16–18 years) and long-term (62–98 years). Results Both over the short- and the long-term, wildfire generated a wide spectrum of responses in soil and vegetation properties at different spatial scales, while logging produced simpler patterns corresponding to the regular linear pattern of harvest trails and to pre-disturbance ericaceous shrub patches that persist between trails. Conclusions Disturbance by harvest simplified spatial patterns associated with soil and vegetation properties compared to patterns associated with natural disturbance by fire. The observed differences in these patterns between disturbance types persist for over 60 years. Ecological management strategies inspired by natural disturbances should aim to increase the complexity of patterns associated with harvest interventions.

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@ARTICLE { LorenteParsonsMcIntireEtAl2013,
    AUTHOR = { Lorente, M. and Parsons, W.F.J. and McIntire, E.J.B. and Munson, A.D. },
    TITLE = { Wildfire and forest harvest disturbances in the boreal forest leave different long-lasting spatial signatures },
    JOURNAL = { Plant and Soil },
    YEAR = { 2013 },
    VOLUME = { 364 },
    PAGES = { 39-54 },
    NUMBER = { 1-2 },
    ABSTRACT = { Aims Natural disturbances leave long-term legacies that vary among landscapes and ecosystem types, and which become integral parts of successional processes at a given location. As humans change land use, not only are immediate post-disturbance patterns altered, but the processes of recovery themselves are likely altered by the disturbance. We assessed whether short-term effects on soil and vegetation that distinguish wildfire from forest harvest persist over 60 years after disturbance in boreal black spruce forests, or post-disturbance processes of recovery promote convergence of the two disturbance types. Methods Using semi-variograms and Principal Coordinates of Neighbour Matrices, we formulated precise, a priori spatial hypotheses to discriminate spatial signatures following wildfire and forest harvest both over the short- (16–18 years) and long-term (62–98 years). Results Both over the short- and the long-term, wildfire generated a wide spectrum of responses in soil and vegetation properties at different spatial scales, while logging produced simpler patterns corresponding to the regular linear pattern of harvest trails and to pre-disturbance ericaceous shrub patches that persist between trails. Conclusions Disturbance by harvest simplified spatial patterns associated with soil and vegetation properties compared to patterns associated with natural disturbance by fire. The observed differences in these patterns between disturbance types persist for over 60 years. Ecological management strategies inspired by natural disturbances should aim to increase the complexity of patterns associated with harvest interventions. },
    DOI = { 10.1007/s11104-012-1331-3 },
    ISSN = { 0032-079X },
    KEYWORDS = { Black spruce boreal forest; Ecosystem management; Forest disturbance; Land-use legacies; Spatial modelling },
    LANGUAGE = { English },
    OWNER = { nafon9 },
    PUBLISHER = { Springer Netherlands },
    TIMESTAMP = { 2013.05.13 },
    URL = { http://dx.doi.org/10.1007/s11104-012-1331-3 },
}

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