Article (Scientific journals)
Harmonisation of stem volume estimates in european national forest inventories
Gschwantner, T.; Alberdi, I.; Balázs, A. et al.
2019In Annals of Forest Science, 76, p. 24
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Keywords :
sample-based inventories; dbh-threshold; volume models; reference definition; growing stock; international reporting
Abstract :
[en] Key message : Volume predictions of sample trees are basic inputs for essential National Forest Inventory (NFI) estimates. The predicted volumes are rarely comparable among European NFIs because of country-specific dbh thresholds and differences regarding the inclusion of the tree parts stump, stem top, and branches. Twenty-one European NFIs implemented harmonisation measures to provide consistent stem volume predictions for comparable forest resource estimates. Context : The harmonisation of forest information has become increasingly important. International programs and interest groups from the wood industry, energy, and environmental sectors require comparable information. European NFIs as primary source of forest information are well-placed to support policies and decision-making processes with harmonised estimates. Aims : The main objectives were to present the implementation of stem volume harmonisation by European NFIs, to obtain comparable growing stocks according to five reference definitions, and to compare the different results. Methods : The applied harmonisation approach identifies the deviations between country-level and common reference definitions. The deviations are minimised through country-specific bridging functions. Growing stocks were calculated from the unharmonised, and harmonised stem volume estimates and comparisons were made. Results : The country-level growing stock results differ from the Cost Action E43 reference definition between − 8 and +32%. Stumps and stem tops together account for 4 to 13% of stem volume, and large branches constitute 3 to 21% of bro adleaved growing stock. Up to 6% of stem volume is allocated below the dbh-threshold. Conclusion :Comparable volume figures are available for the first time on a large-scale in Europe. The results indicate the importance of harmonisation for international forest statistics. The presented work contributes to the NFI harmonisation process in Europe in several ways regarding comparable NFI reporting and scenario modelling.
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Agriculture & agronomy
Author, co-author :
Gschwantner, T.
Alberdi, I.
Balázs, A.
Bauwens, Sébastien  ;  Université de Liège - ULiège > Ingénierie des biosystèmes (Biose) > Gestion des ressources forestières et des milieux naturels
Bender, S.
Borota, D.
Bosela, M.
Bouriaud, O.
Cañellas, I.
Donis, J.
Freudenschuß, A.
Hervé, J.-C.
Hladnik, D.
Jansons, J.
Kolozs, L.
Korhonen, K. T.
Kucera, M.
Kulbokas, G.
Kuliešis, A.
Lanz, A.
Lejeune, Philippe ;  Université de Liège - ULiège > Ingénierie des biosystèmes (Biose) > Gestion des ressources forestières et des milieux naturels
Lind, T.
Marin, G.
Morneau, F.
Nagy, D.
Nord-Larsen, T.
Nunes, L.
Pantić, D.
Paulo, J. A.
Pikula, T.
Redmond, J.
Rego, F. C.
Riedel, T.
Saint-André, L.
Šebeň, V.
Sims, A.
Skudnik, M.
Solti, G.
Tomter, S. M.
Twomey, M.
Westerlund, B.
Zell, J.
More authors (32 more) Less
Language :
English
Title :
Harmonisation of stem volume estimates in european national forest inventories
Publication date :
2019
Journal title :
Annals of Forest Science
ISSN :
1286-4560
eISSN :
1297-966X
Publisher :
Springer, Germany
Volume :
76
Pages :
24
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 March 2019

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