MAPPING OF Araucaria angustifolia TREES USING GPS RECEIVERS

作者：Venancio Diego Luis^*; Disperati Attilio Antonio; Neves Ricardo Vilar

来源：Cerne, 2010, 16(3): 391-398.

• Araucaria forest
• araucaria tree
• geographic positioning
• NAVSTAR-GPS

This study makes use of GPS technology in differential mode (relative positioning) and absolute mode in a Mixed Ombrophilous Forest in order to map the Araucaria angustifolia trees that occur in the area of study (Campus of Irati - UNICENTRO) in Parana State, Brazil The fieldwork pointed out the presence of 264 Araucarias in the area of study, the relative positioning was possible in 141 cases with precision ranging from 6 to 84 cm, absolute positioning was possible in all cases with precision ranging from 5 to 14 in The relative positioning was possible in 30% of the Araucarias where slope was > 30% and in 57% of cases in which the basal area was > 16 m2/ha It can be concluded that the relative positioning accuracy is sufficient for the location of the Araucarias while the absolute position can cause confusion due to the low degree of planimetric accuracy position The results of the relative positioning were influenced by slope and basal area, especially in conditions of high slope and high basal area

• 出版日期2010-9