Relationship of Climate to the Specific Gravity of Four Costa Rican Hardwoods: An Exploratory Study
Keywords:
<i>Cordia alliodora</i>, <i>Virola Koschnyi</i>, <i>Cedrela mexicana</i>, <i>Brosimum</i> spp, increment cores, life zones, Organization for Tropical Studies, tropical hardwoods, specific gravityAbstract
In the summer of 1970, increment cores were removed at breast height from trees of four hardwood species growing on ten different sites in Costa Rica. On the basis of Holridge's Life Zone Classification System, these sites ranged from Tropical Dry to Premontane Rain.
Expressed in terms of Holdridge's Life Zone System, climate has the most pronounced effect on the specific gravity of Cordia alliodora;—specific gravities for Tropical Dry and Premontane Moist sites being significantly greater than those for Tropical Moist, Premontane Wet and Tropical Wet sites. The specific gravities of Virola Koschnyi and Cedrela mexicana are also significantly different on some sites. For Brosimum spp., no significant differences in specific gravity were found.
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