A silvicultural stand density model to control understory in maritime pine stands
Teresa F Fonseca (1) , João C Duarte (2)
iForest - Biogeosciences and Forestry, Volume 10, Issue 5, Pages 829-836 (2017)
doi: https://doi.org/10.3832/ifor2173-010
Published: Sep 25, 2017 - Copyright © 2017 SISEF
Research Articles
Abstract
The aim of this study was to provide optimal silvicultural guidelines for the maintenance of low understory vegetation cover in maritime pine (Pinus pinaster Ait.) stands in Mediterranean areas prone to the occurrence of forest fires. An extensive data set from maritime pine stands of northern Portugal was used to assess the effect of stand density on the understory cover. A statistically significant relationship between the spacing-top height factor (Fw) and the understory cover was found. An ecologically-based density regulation model was developed based on Fw = 0.21, which provided the optimal stand density and canopy cover to prevent the understory growth and proliferation, thereby reducing the vulnerability to forest fire and ensuring at the same time the highest values of stand yield. The developed model represents a supporting tool for density regulation of maritime pine stands in areas prone to forest fires. The representativeness of the supporting data set (in terms of number of sample plots and variability of the stands characteristics) provides confidence in the generalization of our results to different maritime pine stands in the Mediterranean area. This study suggests that managing stand density may be an effective adaptive management procedure which can help reducing the forest fire hazard.
Keywords
Silviculture, Density Regulation, Understory Reduction, Pinus pinaster
Authors’ Info
Authors’ address
Departamento de Ciências Florestais e Arquitetura Paisagista (CIFAP), Universidade de Trás-os-Montes e Alto Douro, 5000-801 Vila Real (Portugal)
Instituto de Conservação da Natureza e das Florestas, Parque Florestal, 5000-567 Vila Real (Portugal)
Corresponding author
Paper Info
Citation
Fonseca TF, Duarte JC (2017). A silvicultural stand density model to control understory in maritime pine stands. iForest 10: 829-836. - doi: 10.3832/ifor2173-010
Academic Editor
Rupert Seidl
Paper history
Received: Jul 16, 2016
Accepted: Jun 26, 2017
First online: Sep 25, 2017
Publication Date: Oct 31, 2017
Publication Time: 3.03 months
Copyright Information
© SISEF - The Italian Society of Silviculture and Forest Ecology 2017
Open Access
This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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