COMPARISON OF THE METHODS FIXED AREA, RELASCOPIE AND SIX TREES IN RELATIO TO EFFICIENCY, IN THE FOREST INVENTORY OF A Pinus sp. STAND.

Authors

  • Araldo De Cesaro UFSM
  • Otto Arli Engel
  • César Augusto Guimarães Finger
  • Paulo Renato Schneider

DOI:

https://doi.org/10.5902/19805098300

Keywords:

forest inventur, samplimg, relativ efficiency, Pinus.

Abstract

In this  work it was compared the sampling method of fixed area, relascopie and six trees, across the canon of relative efficiency. The study was realized in Pinus taeda L.  stand for a  maximum error admitted of 10% of middle volume and 95% of probability. The results showed to be more efficient the inventory conduced with sample units of fixed area; while the  relascopie method reached 80% and  the six trees 60% of efficiency in the relation to the first, have been rising, respectivelly, 9, 13 and 31 units of  samples, and totalizing 228; 326 and 336 minutes to reach the  fixed precision.

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References

FINGER, C.A.G. Fundamentos de biometria florestal. Santa Maria: CEPEF/FATEC, 1992. 169p.

HUSCH, B. Plantification de um inventário forestal. Roma: FAO, 1971. 135p. (Estudios de silvicultura y produtos forestales).

HUSCH, B.; MILLER, C.I.; BEERS, T.W. Forest mensuration. New York: John Wiley & Sons, 1982. 402p.

KRAMER, H.; AKÇA, A. Leitfaden fur Dendrometrie und Bestandesinventur. Frankfurt a. M.: Sauerland, 1982. 251p.

SILVA, J.A. Biometria e estatística florestal. Santa Maria: UFSM, 1977.235p.

STERBA, H. Holzmesslehre. Wien: Inst. f. Forstl. Ertragslehre der Univ. f. Bodenkultur, 1986. 169p.

Published

1999-03-30

How to Cite

Cesaro, A. D., Engel, O. A., Finger, C. A. G., & Schneider, P. R. (1999). COMPARISON OF THE METHODS FIXED AREA, RELASCOPIE AND SIX TREES IN RELATIO TO EFFICIENCY, IN THE FOREST INVENTORY OF A Pinus sp. STAND. Ciência Florestal, 4(1), 98–108. https://doi.org/10.5902/19805098300

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