Accuracy and efficiency evaluation of point-centered quarter method variations for vegetation sampling in an araucaria forest

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dc.creatorGraziele Hernandes Volpato
dc.creatorSebastião Venâncio Martins
dc.creatorJoema Carvalho
dc.creatorLuiz dos Anjos
dc.date2010
dc.date.accessioned2026-07-07T03:14:55Z
dc.descriptionIn order to verify Point-Centered Quarter Method (PCQM) accuracy and efficiency, using different numbers of individuals by per sampled area, in 28 quarter points in an Araucaria forest, southern Paraná, Brazil. Three variations of the PCQM were used for comparison associated to the number of sampled individual trees: standard PCQM (SD-PCQM), with four sampled individuals by point (one in each quarter), second measured (VAR1-PCQM), with eight sampled individuals by point (two in each quarter), and third measuring (VAR2-PCQM), with 16 sampled individuals by points (four in each quarter). Thirty-one species of trees were recorded by the SD-PCQM method, 48 by VAR1-PCQM and 60 by VAR2-PCQM. The level of exhaustiveness of the vegetation census and diversity index showed an increasing number of individuals considered by quadrant, indicating that VAR2-PCQM was the most accurate and efficient method when compared with VAR1-PCQM and SD-PCQM.
dc.formatapplication/pdf
dc.identifier0100-6762
dc.identifierhttps://www.redalyc.org/articulo.oa?id=48815857015
dc.identifier.urihttp://hdl.handle.net/123456789/428081
dc.languageen
dc.publisherUniversidade Federal de Viçosa
dc.relationhttp://www.redalyc.org/revista.oa?id=488
dc.rightsRevista Árvore
dc.sourceRevista Árvore (Brasil) Num.3 Vol.34
dc.subjectAgrociencias
dc.titleAccuracy and efficiency evaluation of point-centered quarter method variations for vegetation sampling in an araucaria forest
dc.typeartículo científico

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