| Sumario: | Despite the publication of numerous studies about carbon (C) concentration in
various tree components, few have investigated the C variation in spatially restricted
tree species. We evaluated differences in C concentrations among four conifer species of
High Value Conservation Forests (HVCF) in northern Mexico. Total carbon concentration
(TOC) analyses were performed for Cupressus lusitanica Mill, Picea chihuahuana Mtz.,
Abies durangensis Mtz., and Pseudotsuga menziesii Mirb. Carbon concentration varies
within the structural tree component, but no significant difference was found when the
aerial samples were classified based on the point of cardinal extraction from where they
were taken. The species, P. menziesii, A. durangensis, and P. chihuahuana showed the
lowest C concentration in the stems, while C. lusitanica had the highest.
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