KwonKimKimEtAl2021

Référence

Kwon, S., Kim, S., Kim, J., Kang, W., Park, K.-H., Kim, C.-B., Montoro Girona, M. (2021) Predicting Post-Fire Tree Mortality in a Temperate Pine Forest, Korea. Sustainability, 13(2). (URL )

Résumé

Warmer and drier conditions in temperate regions are increasing the length of the wildfire season. Given the greater fire frequency and extent of burned areas under climate warming, greater focus has been placed on predicting post-fire tree mortality as a crucial component of sustainable forest management. This study evaluates the potential of logistic regression models to predict post-fire tree mortality in Korean red pine (Pinus densiflora) stands, and we propose novel means of evaluating bark injury. In the Samcheok region of Korea, we measured topography (elevation, slope, and aspect), tree characteristics (tree/crown height and diameter at breast height (DBH)), and bark injuries (bark scorch height/proportion/index) at three sites subjected to a surface fire. We determined tree status (dead or live) over three years after the initial fire. The bark scorch index (BSI) produced the best univariate model, and by combining this index with the DBH produced the highest predictive capacity in multiple logistic regression models. A three-variable model (BSI, DBH, and slope) enhanced this predictive capacity to 87%. Our logistic regression analysis accurately predicted tree mortality three years post fire. Our three-variable model provides a useful and convenient decision-making tool for land managers to optimize salvage harvesting of post-fire stands.

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@ARTICLE { KwonKimKimEtAl2021,
    AUTHOR = { Kwon, S. and Kim, S. and Kim, J. and Kang, W. and Park, K.-H. and Kim, C.-B. and Montoro Girona, M. },
    JOURNAL = { Sustainability },
    TITLE = { Predicting Post-Fire Tree Mortality in a Temperate Pine Forest, Korea },
    YEAR = { 2021 },
    ISSN = { 2071-1050 },
    NUMBER = { 2 },
    VOLUME = { 13 },
    ABSTRACT = { Warmer and drier conditions in temperate regions are increasing the length of the wildfire season. Given the greater fire frequency and extent of burned areas under climate warming, greater focus has been placed on predicting post-fire tree mortality as a crucial component of sustainable forest management. This study evaluates the potential of logistic regression models to predict post-fire tree mortality in Korean red pine (Pinus densiflora) stands, and we propose novel means of evaluating bark injury. In the Samcheok region of Korea, we measured topography (elevation, slope, and aspect), tree characteristics (tree/crown height and diameter at breast height (DBH)), and bark injuries (bark scorch height/proportion/index) at three sites subjected to a surface fire. We determined tree status (dead or live) over three years after the initial fire. The bark scorch index (BSI) produced the best univariate model, and by combining this index with the DBH produced the highest predictive capacity in multiple logistic regression models. A three-variable model (BSI, DBH, and slope) enhanced this predictive capacity to 87%. Our logistic regression analysis accurately predicted tree mortality three years post fire. Our three-variable model provides a useful and convenient decision-making tool for land managers to optimize salvage harvesting of post-fire stands. },
    ARTICLE-NUMBER = { 569 },
    DOI = { 10.3390/su13020569 },
    OWNER = { Daniel Lesieur },
    TIMESTAMP = { 2021-01-18 },
    URL = { https://www.mdpi.com/2071-1050/13/2/569 },
}

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