TITLE

DISTRIBUCION Y ESTRUCTURA DE LA POBLACION DE ABIES REUGIOSA (H.B.K.) SCHL ET CHAM., EN EL COFRE DE PEROTE, ESTADO DE VERACRUZ, MEXICO

AUTHOR(S)
Sanchez-Velasouez, Lazaro Rafael; Del Rosario Pineda-Lopez, Ma.; Hernandez-Martinez, Amador
PUB. DATE
December 1991
SOURCE
Acta Botanica Mexicana;dic1991, Issue 16, p45
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Analysis of relative frequency and multiple correlations were used to determine altitude slope and exposure of places where Abies religiosa (H.B.K.) Schl. et Cham. is found in the Cofre de Perote area, state of Veracruz, México. This study includes a population structure analysis, as well as an analysis of the relationships between the common annual increment (CAI), the variables mentioned above and the coverage, the standing tree basal areas, and the stump basal areas. The results show that the fir forest is restricted to certain slope and altitude conditions. This is due primarily to the loss of forested land to agriculture. There is a 0.579 probability of finding fir trees at altitudes between 3200 and 3400 meters and on slopes of 40% to 55%. With respect to exposure, the NW side shows the greatest frequency (58%). A high correlation (r= -0.96)was found between the normal diameter (ND) and the age of the trees. Moreover, the age structure is that of a shade-tolerant species. Finally, a positive relationship was found between CAI, the stump basal area and the slope (r= 0.77, p<0.01).
ACCESSION #
21362673

 

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