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Measuring wood specific gravity...Correctly.
The specific gravity (SG) of wood is a measure of the amount of structural material a tree species allocates to support and strength. In recent years, wood specific gravity, traditionally aExpand
Late pleistocene temperature depression and vegetation change in Ecuadorian Amazonia
Abstract Paleoecological (pollen, phytolith, and wood) analyses of sediments, radiocarbon dated 33,000 to 26,000 yr B.P., from two sites in Ecuadorian Amazonia provide data that suggest a cooling ofExpand
Oligocene mammals from Ethiopia and faunal exchange between Afro-Arabia and Eurasia
Afro-Arabian mammalian communities underwent a marked transition near the Oligocene/Miocene boundary at approximately 24 million years (Myr) ago. Although it is well documented that the endemicExpand
A Revised Chronology for Mississippi River Subdeltas
Radiocarbon measurements by accelerator mass spectrometry relating to three of the four late Holocene Mississippi River subdeltas yielded consistent results and were found to differ by up to 2000Expand
Characteristics and availability of commercially important woods
All wood is composed of cellulose, lignin, hemicelluloses, and minor amounts (usually less than 10%) of extraneous materials contained in a cellular structure. Variations in the characteristics andExpand
Geographic Variation in Wood Specific Gravity: Effects of Latitude, Temperature, and Precipitation
Wood basic specific gravity (SG) was compared at sites located along a gradient from 52"N latitude to the equator. Mean SG increased by 0.0049 per "C mean annual temperature (MAT), and decreased byExpand
WOOD SPECIFIC GRAVITY GRADIENTS IN TROPICAL DRY AND MONTANE RAIN FOREST TREES
Pith to bark specific gravity (SG) trends were investigated in 18 tropical dry forest and six montane rain forest tree species of Costa Rica. Eleven dry forest species showed statisticallyExpand
EXTREME RADIAL CHANGES IN WOOD SPECIFIC GRAVITY IN SOME TROPICAL PIONEERS
Twelve Hampea appendiculata, six Heliocarpus appendiculatus , and twelve Ochroma pyramidale trees from tropical wet forest in Costa Rica were sampled across their radii. Wood from all three speciesExpand
Age-dependent radial increases in wood specific gravity of tropical pioneers in Costa Rica
Wood specific gravity is the single best descriptor of wood functional properties and tree life-history traits, and it is the most important variable in estimating carbon stocks in forests. TropicalExpand
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