RT info:eu-repo/semantics/article
T1 Use of bayesian modeling to determine the effects of meteorological conditions, prescribed burn season, and tree characteristics on litterfall of Pinus nigra and Pinus pinaster stands
A1 Espinosa Prieto, Juncal
A1 Rodríguez De Rivera, Óscar
A1 Madrigal, Javier
A1 Guijarro, Mercedes
A1 Hernando, Carmen
K1 Pinos
K1 Pino negro
K1 Pinos - España - Castilla La Mancha
K1 Bosques y silvicultura
K1 Vulnerabilidad
K1 The Cuenca Mountains
K1 Bayesian Modeling
K1 3106 Ciencia Forestal
AB Research Highlights: Litterfall biomass after prescribed burning (PB) is significantly influenced by meteorological variables, stand characteristics, and the fire prescription. Some of the fire-adaptive traits of the species under study (Pinus nigra and Pinus pinaster) mitigate the effects of PB on litterfall biomass. The Bayesian approach, tested here for the first time, was shown to be useful for analyzing the complex combination of variables influencing the effect of PB on litterfall. Background and Objectives: The aims of the study focused on explaining the influence of meteorological conditions after PB on litterfall biomass, to explore the potential influence of stand characteristic and tree traits that influence fire protection, and to assess the influence of fire prescription and fire behavior. Materials and Methods: An experimental factorial design including three treatments (control, spring, and autumn burning), each with three replicates, was established at two experimental sites (N = 18; 50 × 50 m2 plots). The methodology of the International Co-operative Program on Assessment and Monitoring of Air Pollution Effects on Forests (ICP forests) was applied and a Bayesian approach was used to construct a generalized linear mixed model. Results: Litterfall was mainly affected by the meteorological variables and also by the type of stand and the treatment. The effects of minimum bark thickness and the height of the first live branch were random. The maximum scorch height was not high enough to affect the litterfall. Time during which the temperature exceeded 60 °C (cambium and bark) did not have an important effect. Conclusions: Our findings demonstrated that meteorological conditions were the most significant variables affecting litterfall biomass, with snowy and stormy days having important effects. Significant effects of stand characteristics (mixed and pure stand) and fire prescription regime (spring and autumn PB) were shown. The trees were completely protected by a combination of low-intensity PB and fire-adaptive tree traits, which prevent direct and indirect effects on litterfall. Identification of important variables can help to improve PB and reduce the vulnerability of stands managed by this method.
PB MDPI
SN 1999-4907
YR 2020
FD 2020
LK https://uvadoc.uva.es/handle/10324/59011
UL https://uvadoc.uva.es/handle/10324/59011
LA eng
NO Forests, 2020, Vol. 11, Nº. 9, 1006
NO Producción Científica
DS UVaDOC
RD 18-nov-2024