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A Density Management Diagram Including Stand Stability and Crown Fire Risk for Pseudotsuga Menziesii (Mirb.) Franco in Spain.

Authors :
López-Sánchez, Carlos
Rodríguez-Soalleiro, Roque
Source :
Mountain Research & Development; May2009, Vol. 29 Issue 2, p169-176, 8p
Publication Year :
2009

Abstract

A static stand density management diagram was constructed for Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) plantations in Spain on the basis of 3 equations that were fitted simultaneously by the full information maximum likelihood procedure to data derived from 172 plots measured across the Cantabrian and pre-Pyrenean ranges. The first equation relates quadratic mean diameter to the number of stems per hectare and dominant height. The other 2 equations relate stand volume and stand aboveground biomass to quadratic mean diameter, number of stems per hectare, and dominant height. An estimation of the average slenderness coefficient for the 250 largest trees per hectare and the canopy bulk density were included. The stand density management diagram outlined here enables rapid, straightforward comparisons among different thinning schedules for forest plantations in mountain regions, in which timber production, risk of crown fire, and the risk of damage from wind or snow are considered. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02764741
Volume :
29
Issue :
2
Database :
Complementary Index
Journal :
Mountain Research & Development
Publication Type :
Academic Journal
Accession number :
44041287
Full Text :
https://doi.org/10.1659/mrd.1070