%0 Journal Article
%A Mailly, D.
%A Turbis, S.
%A Auger, I.
%A Pothier, D.
%T The influence of site tree selection method on site index determination and yield prediction in black spruce stands in northeastern Quebec
%B Forestry Chronicle
%D 2004
%V 80
%P 134-140
%N 1
%Z Times Cited: 0; timestamp=(2007.12.05)
%X Site index is a common and convenient indicator of forest site productivity.
The concept is well suited for growth and yield predictions, although
there appears to be no universal consensus on the type or number
of site trees needed for its application. We compared four methods
for assessing site quality using data from black spruce (Picea mariana
(Mill.) BSP) stands of northeastern Quebec. Data were analysed with
a univariate repeated measures analysis of variance design using
the MIXED procedure of the SAS system. Significant differences were
found between the method based on the mean height of the 100 largest
trees per hectare and three other methods that calculate site index
using information from average site trees (codominants and dominants)
and an equation to estimate top height from stand level data. We
concur with many others that using the mean height of the 100 largest
trees per hectare is a more standard procedure than simple averages
of codominant and dominant tree heights for site quality assessment
and growth modelling. We recommend that the next yield table system
developed in the province should be based on top height trees, instead
of using average codominants and dominants and an equation to estimate
dominant height.
%K site index; top height; yield table; site trees TOP HEIGHT; PINE PLANTATIONS;
DEFINITION; DENSITY; SIZES
%# brugerolles
%F MaillyTurbisAugerEtAl2004
%3 BibTeX type = ARTICLE