Metla Project 3392

Diameter growth dynamics during growing season and annual growth variation

[  Suomeksi  |  Objectives  |  Project leader  |  Researchers  |  Publications  |  Metla Research  ]

Duration: 2004-2008   Keywords: climate-growth relationship, daily growth dynamics, growth indices, spatial interpolation and smoothing, variation of annual diameter growth, variation of annual volume growth , variation of annual volume growth, wood formation
Research project group:

Objectives

The first aim of the study is to investigate diameter growth variation during the growing season and the factors affecting the process. For that we will further develop methods for measuring the daily diameter growth of trees. Especially, methods that are based on extracting mini-cores, which include the newly formed tracheids, will be investigated and compared with girth band measurements. Effects of weather variation on the short-term growth rate are analysed in detail.

The other main aim is to analyse annual growth variation using data from Finnish National Forest Inventories (NFI) and to describe the geographical variation of annual growth. We will evaluate different methods for estimating growth indices for individual forest stands as well as geographical areas. We will also analyse how well indices based on diameter growth actually describe the variation of volume growth. A method based on spatial interpolation and smoothing will be developed for estimating growth indices for any given location in Finland using large-scale inventory data, e.g. NFI data.

Project leader: Nöjd, Pekka
The Finnish Forest Research Institute, Vantaa Unit, PL 18, FI-01301 VANTAA, FINLAND
Phone: +358 29 532 5462
E-mail: pekka.nojd@metla.fi

Other researchers: Henttonen, Helena, VA (2004-08), Jyske, Tuula, VA (2007-09), Lumme, Ilari, VA (2008), Lähtinen, Katja, JO (2004), Miettinen, Antti (2006), Mäkinen, Harri, VA (2004-08), Pesonen, Erkki, VA (2004-08)


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Updated 12.06.2012
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