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Revista Chapingo serie ciencias forestales y del ambiente

versión On-line ISSN 2007-4018versión impresa ISSN 2007-3828


SOTO-CARRASCO, Yareli; VARGAS-HERNANDEZ, J. Jesús; ROZENBERG, Philippe  y  GOMEZ-GUERRERO, Armando. Growth ring components of Pinus hartwegii Lindl. at the altitudinal distribution limits in east-central Mexico. Rev. Chapingo ser. cienc. for. ambient [online]. 2022, vol.28, n.3, pp.411-425.  Epub 08-Mar-2024. ISSN 2007-4018.


Climate change will have a differential impact on mountain forest growth linked to elevation.


To evaluate the interrelationships of growth ring components at the altitudinal gradient limits of Pinus hartwegii Lindl. in three mountains of east-central Mexico.

Materials and methods:

We analyzed 295 tree samples from Cofre de Perote, Pico de Orizaba and Monte Tláloc corresponding to the period 1960-2017 with a total of 17 700 observations per variable (ring width and density [TRW, TRD], earlywood [EWW, EWD], latewood [LWW, LWD] and minimum and maximum density [MID, MAD]).

Results and discussion:

Growth parameters were higher at the lower limit (≈3 500 m). The correlation of TRW with EWW (r ≥ 0.95) and LWW (r ≥ 0.78) was significant (P < 0.05). TRD correlated with EWD (r ≥ 0.83) and MID (r ≥ 0.72), as well as EWD with MID (r ≥ 0.92) and LWD with MAD (r ≥ 0.92). At the upper limit (≈4 000 m), correlations of TRW, EWW and LWW with TRD, EWD and MID were negative (-0.3 ≥ r ≥ -0.8). This may be explained by lower temperatures and growth periods reducing the relative importance of latewood in ring width.


The information provided contributes to understand the dynamics of P. hartwegii xylogenesis in response to climate and possible implications for radial growth facing climate change.

Palabras llave : Pico de Orizaba; Cofre de Perote; Monte Tláloc; radial growth; altitudinal gradient.

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