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Bending of Pinus jeffrey in response to wind
Francisco Martínez
Eulogio López Mata
José Luis Rodríguez García
Acceso Abierto
Biomechanics, Pinus jeffreyi, Seasonality, Stress accumulation, Time series, Tree bending
"Aim of study: To evaluate the degree of trunk sway in relation to wind velocity, with varying temporal integration and to compare this relation among seasons. Area of study: Sierra de Juárez, Baja California, México Materials and Methods: Displacements of a 19 m tall Jeffrey pine tree were recorded at 6 m from a three dimensional digital compass during one year, at c. 4 Hz. Adjacent wind speed at 6 m was recorded at 1 Hz. Main results: Sway was essentially unaffected by wind in the same second but increasing dependence of cumulative displacement on average sustained wind speed was found for intervals of 1 to 60 minutes (r2 up to 0.89). The relation is nerally log-linear but apparently differs in parameters between seasons. Research highlights: Wind-sway relations are clear from integration of several-to-many minutes. However, to estimate cumulative stress, sub-second data on way are essential. Sub-second, precision measurements of sway can be registered from small, inexpensive sensors."
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
Forest Systems, Vol. 24, No. 3, Págs. 1-4
Bullock,S.H.,Martínez Osuna,J.F.,López Reyes,E.,Rodríguez Navarro,J.L.2015.Bending of Pinus jeffreyi in response to wind.Forest Systems,24(3),1-4.doi:10.5424/fs/2015243-08292
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Appears in Collections:Artículos - Biología de la Conservación

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