Caracterización del crecimiento dasométrico de una plantación de Pinus radiata d. don con fines de manejo silvicultural en la parroquia Palmira, provincia de Chimborazo

Abstract

The objective was to characterize the dasometric growth of a Pinus radiata D. Don plantation for silvicultural management purposes in the Palmira Parish, Chimborazo Province. The research revealed several important aspects in terms of growth. The trees showed an average commercial height of 7.96 meters and an average diameter at breast height (DBH) of 12.93 cm, which is lower than in previous studies due to variations in altitude and density of the plantation. The average annual increase (AAI) in volume was 2.73 m³-ha-1/year, and in height was 1.13 m-ha-1/year, values significantly lower than those recorded in Ecuador forests, which indicates the influence of silvicultural management. in productivity. Regarding the quality of the trees, a high percentage of straight trees without forks was observed, which benefits the quality of the wood. Although slight warping and some cases of mechanical damage were recorded, the overall phytosanitary status was good. However, most of the logs were classified as quality 4, suggesting the need to apply adequate silvicultural management. The economic analysis revealed positive profitability in thinning and harvesting activities, with encouraging projections for subsequent stages. Although the investment costs are significant, the income from the sale of wood at USD 22/m³ was sufficient to generate profits in each management phase. The final harvest was the most lucrative, underscoring the importance of effective silvicultural practices to maximize economic returns.