Estimating the accuracy of site index curves by means of simulation.
Faculty of Forest Sciences, Sveriges lantbruksuniversitet.
Studia forestalia Suecica
Official URL: http://www-umea.slu.se/bibum/studia/
The aim of this study is to develop a method for estimating the accuracy of site index curves which is independent of the method used for the construction of the curves. Site index curves for Scots pine in Sweden are used to illustrate the method. The investigation deals mainly with prediction errors, i.e. errors caused by actual height development not following the site index curves. Permanent plot data is used to construct a stochastic, autoregressive simulation model, by means of which it is possible to study the variation of site index over age within stands over long periods. A number of simulations are performed and used for estimating prediction errors. Earlier investigations provide figures on sampling and measurement errors which, together with estimatedprediction errors, are used to obtain recommendations on the number of plots required within a stand to reach a predefined level of accuracy at site index estimation.
|Title:||Estimating the accuracy of site index curves by means of simulation|
|Series/Journal:||Studia forestalia Suecica (0039-3150)|
|Year of publishing :||1975|
|Number of Pages:||34|
|Place of Publication:||Stockholm|
|ISBN for printed version:||91-38-02562-0|
|Full Text Status:||Public|
|Subjects:||ZZZ Don't use any more: Subject categories for Swedish research publications > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Forestry|
|Keywords:||site index curves, Scots pine, plot data|
|Divisions:||Faculty of Forest Sciences|
|Deposited By:||Skogsbiblioteket Umeå|
|Deposited On:||07 Feb 2011 00:00|
|Metadata Last Modified:||03 May 2013 08:04|
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