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Growth and Yield Models for Teak Planted as Living Fences in Coastal Ecuador

1
Carrera de Ingeniería Agropecuaria, Universidad Laica Eloy Alfaro (ULEAM), ULEAM-Extensión Chone, Av. Eloy Alfaro, 130356 Chone, Ecuador
2
Instituto Nacional de Investigaciones Agropecuarias, Extensión Experimental Tropical Pichilingue Km 5 vía Quevedo—El Empalme, 120501 Cantón Mocache, Ecuador
3
Centro de Investigación de Carreras ESPAM MFL, Escuela Superior Politécnica Agropecuaria de Manabí, Campus Politécnico Calceta, Sitio El Limón, 130250 Calceta, Ecuador
4
Graduate School of Management (ESPAE), Escuela Superior Politécnica del Litoral (ESPOL), Campus Las Peñas, 09014519 Guayaquil, Ecuador
5
Posgrado en Ciencias Forestales, Colegio de Postgraduados, Montecillo, 56230 Texcoco, Mexico
6
Instituto de Silvilcultura e Industria de la Madera, Universidad Juárez del Estado de Durango, Boulevard Guadiana #501, Ciudad Universitaria, Torre de Investigación, 34120 Durango, Mexico
*
Author to whom correspondence should be addressed.
Forests 2018, 9(2), 55; https://doi.org/10.3390/f9020055
Received: 15 November 2017 / Revised: 8 January 2018 / Accepted: 17 January 2018 / Published: 24 January 2018
(This article belongs to the Section Forest Inventory, Quantitative Methods and Remote Sensing)
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Abstract

Teak plantations cover a total area of about 4.35 million ha worldwide. The species is currently being planted in silvopastoral systems in the coastal lowlands of Ecuador. However, there are no growth and yield models for teak grown in silvopastoral systems, especially as living fences, in this region. The aim of the present study was to develop volume and yield models for teak grown as living fences in silvopastoral systems. For teak planted as living fences, the biological rotation age was estimated to vary between 15 and 26 years. The final yield in the silvopastoral system varied from 49 m3 ha−1 at 26 years in the least productive sites to 225 m3 ha−1 at 15 years in the most productive sites in the study area. The mean annual yield for the highest quality site was 15.3 m3 ha−1 year−1 at age 15 years, for a density of 160 trees ha−1. For a base age of 10 years, height-based site indexes of nine to 23 m were established. The growth and yield model obtained may be useful to define the biological (optimal) rotation age and estimate the productivity of teak living fences in the coastal lowlands of Ecuador. View Full-Text
Keywords: site index; silvicultural models; silvopastoral systems; Tectona grandis L. site index; silvicultural models; silvopastoral systems; Tectona grandis L.
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Cañadas-L, Á.; Andrade-Candell, J.; Domínguez-A, J.M.; Molina-H, C.; Schnabel-D, O.; Vargas-Hernández, J.J.; Wehenkel, C. Growth and Yield Models for Teak Planted as Living Fences in Coastal Ecuador. Forests 2018, 9, 55.

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