| Autor: |
Loewe-Muñoz V; Chilean Forest Institute (INFOR), Santiago 4811230, Chile.; Centro Nacional de Excelencia para la Industria de la Madera (CENAMAD), -ANID BASAL FB210015, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile., Cachinero-Vivar AM; Laboratory of Dasometry and Forest Management, Forestry Engineering Department, School of Agriculture and Forestry, University of Córdoba, Edif. Leonardo da Vinci, Campus de Rabanales, 14071 Córdoba, Spain., Camarero JJ; Instituto Pirenaico de Ecología (IPE-CSIC), 50192 Zaragoza, Spain., Río RD; Centro Nacional de Excelencia para la Industria de la Madera (CENAMAD), -ANID BASAL FB210015, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile., Delard C; Chilean Forest Institute (INFOR), Santiago 4811230, Chile., Navarro-Cerrillo RM; Research Group RNM-360, Departamento de Ingenieria Forestal, Evaluación y Restauración de Sistemas Agrícolas y Forestales (ERSAF), Universidad de Córdoba, 14014 Córdoba, Spain. |
| Abstrakt: |
Pinus pinea is an important Mediterranean species due to its adaptability and tolerance to aridity and its high-quality pine nuts. Different forest types located in Mediterranean native and non-native environments provide the opportunity to perform comparative studies on the species' response to climate change. The aims of this study were to elucidate growth patterns of the species growing in native and exotic habitats and to analyze its response to climatic fluctuations, particularly drought, in both geographical contexts. Understanding stone pine ( Pinus pinea ) growth responses to climate variability in native and exotic habitats by comparing natural stands and plantations may provide useful information to plan adequate management under climate change. By doing so, we enhance the understanding of P. pinea 's adaptability and provide practical approaches to its sustainable management. In this study, we reconstructed and compared the stem radial growth of seven stone pine stands, two in southern Spain and five in central-southern Chile, growing under different climatic conditions. We quantified the relationships between growth variability and climate variables (total rainfall, mean temperature, and SPEI drought index). Growth was positively correlated with autumn rainfall in plantations and with autumn-winter rainfall in natural stands. Growth was also enhanced by high autumn-to-spring rainfall in the driest Chilean plantation, whereas in the wettest and coolest plantation, such correlation was found in winter and summer. A negative impact of summer temperature was found only in one of the five Chilean plantations and in a Spanish site. The correlation between SPEI and tree-ring width indices showed different patterns between and within countries. Overall, exotic plantations showed lower sensitivity to climate variability than native stands. Therefore, stone pine plantations may be useful to assist in mitigating climate change. |
