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Usage of biased terrestrial prior information : A case study with Scots pine stands

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Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 118

Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 117

Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 116

Usage of biased terrestrial prior information : A case study with Scots pine stands

Content Provider	Springer Nature Link
Author	Puumalainen, Janna
Copyright Year	2000
Abstract	In diesem Artikel wird das Potential terrestrischer Vorinformationen bei der Ergänzung von bestandesweisen Inventuren anhand von zwei vollaufgenommenen finnischen Kiefernbeständen untersucht. Insbesondere werden die Einflüsse verzerrter Vorinformationen sowie die Möglichkeiten, die Verzerrung zu verringern, erforscht. Die verwendeten Vorinformationen bezüglich des Bestandesvolumens sind mäßig verzerrt, wohingegen die Vorinformationen des Volumens des wertvollsten Sortiments deutlich verzerrt sind. Die Ergebnisse zeigen, daß die Risiken der verzerrten Vorinformationen durch die Auswahl der Methode der Datenkombination sowie der Gewichtung der Datensätze gering bleiben können. Parallel verbessert sich die Schätzung der Zielgrößen — insbesondere dann, wenn der eingesetzte Meßaufwand moderat ist.This article studies the potential of terrestrial prior information in stand-wise forest inventories. The case study is carried out by simulating different combinations of current measurements and prior information data in two Finnish pine stands. Especially the effects of biased prior information as well as the possibilities to reduce the bias are of interest. Prior information concerning stem volume is slightly biased whereas that concerning branchless timber volume is clearly biased. It seems that the risk related to biased prior information is moderate if an appropiate method is selected for the data combination and a careful weighing of the data sets is used. At the same time the estimation of the variable of interest is improved — especially when the amount of field measurements is moderate.
Starting Page	367
Ending Page	376
Page Count	10
File Format	PDF
ISSN	00158003
Journal	Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch
Volume Number	119
Issue Number	1-6
e-ISSN	14390337
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	prior information a-priori-information mixed estimation stand inventory bias Forestry Plant Sciences Plant Ecology
Content Type	Text
Resource Type	Article
Subject	Plant Science Forestry

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EuMIXFOR empirical forest mensuration and ring width data from pure and mixed stands of Scots pine (Pinus sylvestris L.) and European beech (Fagus sylvatica L.) through Europe

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THE EFFECT OF CLIMATE ON THE RADIAL GROWTH OF SCOTS PINE (PINUS SYLVESTRIS L.) IN A COASTAL MIXED STAND IN KAPISUYU, BARTIN, TURKEY

Data from: EuMIXFOR empirical forest mensuration and ring width data from pure and mixed stands of Scots pine (Pinus sylvestris L.) and European beech (Fagus sylvatica L.) through Europe (Dataset)

Usage of biased terrestrial prior information : A case study with Scots pine stands

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Usage of biased terrestrial prior information : A case study with Scots pine stands