Direct estimation of needle mass in pine stand
1995
Anniste, J. | Uri, V. (Estonian Agricultural Univ., Tartu (Estonia))
The main aim of investigation was to get direct estimation of needle mass of pine stand. For this was made 5 sample plots to Jaervselja Study-Practice forest district in 30...50 years old pine stands. To get needle mass estimation for individual tree one could consider branch needle mass, the number of branches in each crown part. The other way to get needle mass estimation is considering the branch needle mass relationships with its dimensions. The third possibility are by using regression equations for trees. The allometric equations from H.Tullus and L.G. Marklund were used. Coefficients of determination ranged from 0,875 to 0,969
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Эту запись предоставил Estonian University of Life Sciences