1. SISTEMA DE CRECIMIENTO Y RENDIMIENTO PARA EVALUAR SUMIDEROS DE CARBONO EN BOSQUES DE Pinus patula Schiede ex Schltdl. et Cham. BAJO APROVECHAMIENTO FOR.
- Author
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Palacios-Cruz, Dorian J., De los Santos-Posadas, Héctor M., Ángeles-Pérez, Gregorio, Fierros-González, Aurelio M., and Santiago-García, Wenceslao
- Subjects
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COMPETITION (Biology) , *FOREST management , *FOREST biomass , *CARBON cycle , *GREENHOUSE gases , *PINACEAE - Abstract
Forests through forest-management are important carbon sinks (C) for the planet because they help mitigate climate change caused by greenhouse gases. Both forest type and management conditions will determine the amount of C captured. The objective of this study was to build a growth and yield system (SCR) to estimate the volume of Pinus patula and above-ground tree C stored in forests with forest management in Zacualtipán de Ángeles, Hidalgo, Mexico. Since volume shows a close relationship with biomass and C in a forest stand, it is possible to integrate these components within an SCR to model the dynamics of above-ground C sinks at the stand level. Data were obtained from 160 sites of 400 m2 systematically established in chronosequence of stand-ages within an intensive site monitoring of C. The system was composed of equations of dominant height, basal area, number of trees, volume, biomass and C for P. patula and broadleaf species. The site indices (IS) obtained were 15, 20, 25, 30 and 35 m at the base age of 40 years. Volume rotation occurs on average at 29 years of age, which indicates that the 40-year rotation used in the region can be shortened by applying intensive silvicultural work, such as heavy thinning to maintain a sawmill-oriented product distribution. The inclusion of the broadleaf species proportion component allowed to model the interspecific competition and the effect on the commercial species (pine). The SCR adequately modeled the behavior of biomass and C, estimated C at 89.1 Mg ha-1 for IS 30 at 35 years. This value is similar to those obtained in natural and managed forests in the region. [ABSTRACT FROM AUTHOR]
- Published
- 2020