Appraisal of urban trees using twelve valuation formulas and two appraiser groups

Título traducido de la contribución: Calificación de árboles urbanos mediante doce fórmulas de valoración y dos grupos de calificadores.

Mauricio Ponce-Donoso, Óscar Vallejos-Barra, Francisco J. Escobedo

Resultado de la investigación: Contribución a RevistaArtículo de revisión

5 Citas (Scopus)

Resumen

La valoración monetaria mediante valoraciones de árboles urbanos se puede realizar con fórmulas, una práctica común en muchos países. Este estudio compara doce fórmulas de tipo paramétrico: Amenity Valuation of Tree and Woodlands (Helliwell), Standard Tree Evaluation Method (STEM), French Method, Italian Method, Tedesco, Norma Granada, Trunk Replacement Formula (CTLA), Burn-ley Method, Danish Method, Swiss Method, y dos fórmulas chilenas utilizadas en los municipios de Concepción, La Pintana y Maipú (Método COPIMA), y Peñalolén Method. Luego se aplicaron fórmulas a 30 árboles ubicados en Santiago, Talca y Concepción, Chile. Los investigadores utilizaron ocho evaluadores divididos en dos grupos, de acuerdo con la experiencia de los niveles superior y subalterno. Las diferencias estadísticas se determinaron utilizando la prueba Kruskal-Wallis de varianza no paramétrica, mientras que la prueba de diferencia menos significativa de Fisher se utilizó para identificar grupos homogéneos. Los resultados muestran una amplia dispersión de valores que eran altos para los árboles "emblemáticos" y bajos para los árboles jóvenes o de bajo vigor. La fórmula, la clase de calificadores y las diferencias entre calificadores formaron nueve, dos y tres grupos, respectivamente. Los árboles de menor alzada se obtuvieron por el método danés y francés, mientras que los valores más altos se obtuvieron con las fórmulas Burnley, Helliwell y STEM. Aunque hubo diferencias en el valor de los árboles según el tipo de evaluador, al comparar las diferencias entre los evaluadores, los investigadores encontraron que no se debían al nivel de experiencia. Dada la amplia gama de valores encontrados, los autores del estudio no pueden recomendar ninguna fórmula específica para evaluar los árboles urbanos, ya que los resultados dependerán de las variables de interés utilizadas en las fórmulas y de su aplicación y uso previstos.
(PDF) Valoración de árboles urbanos mediante doce fórmulas de valoración y dos grupos de calificadores. Disponible en: https://www.researchgate.net/publication/314333192_Appraisal_of_Urban_Trees_Using_Twelve_Valuation_Formulas_and_Two_Appraiser_Groups[consultado el 25 de octubre de 2018].
Idioma originalEnglish (US)
Páginas (desde-hasta)72-82
Número de páginas11
PublicaciónArboriculture and Urban Forestry
Volumen43
N.º2
EstadoPublished - mar 1 2017

Huella dactilar

valuation
methodology
researchers
appraisal
method
amenity
vigor
tree trunk
Chile
woodlands
woodland
replacement
testing

All Science Journal Classification (ASJC) codes

  • Forestry
  • Ecology

Citar esto

Ponce-Donoso, Mauricio ; Vallejos-Barra, Óscar ; Escobedo, Francisco J. / Appraisal of urban trees using twelve valuation formulas and two appraiser groups. En: Arboriculture and Urban Forestry. 2017 ; Vol. 43, N.º 2. pp. 72-82.
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Appraisal of urban trees using twelve valuation formulas and two appraiser groups. / Ponce-Donoso, Mauricio; Vallejos-Barra, Óscar; Escobedo, Francisco J.

En: Arboriculture and Urban Forestry, Vol. 43, N.º 2, 01.03.2017, p. 72-82.

Resultado de la investigación: Contribución a RevistaArtículo de revisión

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N2 - Monetary valuation using urban tree appraisals can be performed with formulas, a common practice in many countries. This study compares twelve parametric type formulas: Amenity Valuation of Tree and Woodlands (Helliwell), Standard Tree Evaluation Method (STEM), French Method, Italian Method, Tedesco, Norma Granada, Trunk Replacement Formula (CTLA), Burnley Method, Danish Method, Swiss Method, and two Chilean formulas used in Municipalities of Concepción, La Pintana, and Maipú (COPIMA Method), and Peñalolén Method. Formulas were then applied to 30 trees located in Santiago, Talca and Concepción, Chile. Researchers used eight appraisers divided into two groups, according to senior-level and junior-level experience. Statistical differences were determined using the Kruskal-Wallis test of non-parametric variance, while Fisher's least significant difference test was used to identify homogeneous groups. The results show a wide dispersion of values that were high for "emblematic" trees and low for young or low-vigor trees. Formula, type of appraisers, and inter-appraiser differences formed nine, two, and three groups, respectively. The lowest-appraised trees were obtained using the Danish and French Method, while the highest values were obtained with the Burnley, Helliwell, and STEM formulas. Although there were differences in tree value according to the type of appraiser, when comparing difference among appraisers, researchers found these were not due to experience level. Given the wide range of values found, the study authors cannot recommend any specific formula(s) for assessing urban trees, as results will depend on the variables of interest used in the formulas and their intended application and use.

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