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Above-ground phytomass of a tropical deciduous forest on the coast of Jalisco, México

Published online by Cambridge University Press:  10 July 2009

Angelina Martinez-Yrizar ,
Jose Sarukhan ,
Alfredo Perez-Jimenez ,
Emmanuel Rincon ,
Jose Manuel Maass ,
Arturo Solis-Magallanes  and
Luis Cervantes
Angelina Martinez-Yrizar*
Affiliation:
Centro de Ecología, Universidad National Autónoma de México, Apdo. Postal 70–275, C.P. 04510, México, D.F. México.
Jose Sarukhan
Affiliation:
Centro de Ecología, Universidad National Autónoma de México, Apdo. Postal 70–275, C.P. 04510, México, D.F. México.
Alfredo Perez-Jimenez
Affiliation:
Centro de Ecología, Universidad National Autónoma de México, Apdo. Postal 70–275, C.P. 04510, México, D.F. México.
Emmanuel Rincon
Affiliation:
Centro de Ecología, Universidad National Autónoma de México, Apdo. Postal 70–275, C.P. 04510, México, D.F. México.
Jose Manuel Maass
Affiliation:
Centro de Ecología, Universidad National Autónoma de México, Apdo. Postal 70–275, C.P. 04510, México, D.F. México.
Arturo Solis-Magallanes
Affiliation:
Centro de Ecología, Universidad National Autónoma de México, Apdo. Postal 70–275, C.P. 04510, México, D.F. México.
Luis Cervantes
Affiliation:
Centro de Ecología, Universidad National Autónoma de México, Apdo. Postal 70–275, C.P. 04510, México, D.F. México.
*
1Apdo. Postal 1354, C.P. 83000, Hermosillo, Sonora, México.
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Abstract

Phytomass was determined for a tropical deciduous forest in Chamela, Jalisco, México. The mean canopy height was 6.9 m, and the total basal area was 25.6 m2 ha−1 (dbh > 3.0 cm). The estimated phytomass for this forest (85 Mg ha−1) is among the highest values for tropical dry forests with similar seasonal climates. A stepwise multiple regression analysis showed that phytomass can be predicted firstly by basal area (R2 = 0.88), then by wood specific gravity (R2 = 0.91), and finally by the inclusion of tree height in the regression (R2 = 0.92). Each new independent variable explained significant variance in the phytomass estimation.

Resumen

Se determinó la eantidad de fitomasa aerea viva de una selva baja caducifolia en Chamela, Jalisco, México. La altura promedio del dosel de vegetación fue de 6.9 m, y el área basal total de 25.6 m2 ha−1 (dbh > 3.0cm). La fitomasa estimada para el sitio de estudio (85 Mg ha−1) es de las más altas en comparación con otras selvas tropicales secas con climas similares. Un análisis de regresión múltiple mostró que la fitomasa se puede predceir en primer lugar como una función del área basal (R2 = 0.88), luego como función dc la gravedad especifica de la madera (R2 = 0.91) y finalmenle por la inclusión de la allura en la ecuación (R2 = 0.92). Cada nueva variable independiente explicó porciones significativas de la variancia en fitomasa.

Keywords

above-groundallometrybiomassMéxicophytomassseasonalityregressiontropical deciduous forest
Type
Research Article
Information
Journal of Tropical Ecology , Volume 8 , Issue 1 , February 1992 , pp. 87 - 96
Copyright
Copyright © Cambridge University Press 1992

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