Medida de densidade de sombreamento em cacauais com base em fotografias aéreas

The potential usefulness of aerial photographs for evaluation the degree of canopy cover from shade trees in cacao plantations is being studied by comparing aerial photo-images with field observations. Four shade patterns (10, 20, 30 and 40 percent of canopy cover) were set up on stereograms. Due to variability in crown diameter, height of the shade trees and their spatial distribution in the field no correlation was found between the number of shade trees and the levels at canopy cover. The dispersion of the series corresponding to the 30 percent level was the most uniform. Skill developed through practice should over-come the difficulties in using the stereograms with density patterns

Bibliographic Details

Main Authors:	Jones, Earl 81495, 107834 Quesnel, V.C., 56331 Chalmers, W.S., 68473 Fordham, R., Iton, E.F. editores/as 80035, 85935 Leite, J. de O. autor/a, 5330 Cocoa Research Institute, St. Augustine (Trinidad y Tobago), 4. International Cocoa Research Conference (4 : 8-18 Ene 1972 : St. Augustine, Trinidad y Tobago)
Format:	biblioteca
Language:	por
Published:	St. Augustine (Trinidad y Tobago): Cocoa Research Institute, 1972
Subjects:	THEOBROMA CACAO, SOMBRA, FOTOGRAFIA, RECONOCIMIENTO AEREO, MUESTREO, PLANTAS DE SOMBRA, CULTIVO, FOTOINTERPRETACION, BRASIL,
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