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Production and profitability of low density Norway spruce (Picea abies (L.) Karst.) plantation at 50 years of age: case study from eastern Latvia

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dc.contributor.authorKatrevičs, J.
dc.contributor.authorDžeriņa, B.
dc.contributor.authorNeimane, U.
dc.contributor.authorDesaine, I.
dc.contributor.authorBigača, Z.
dc.contributor.authorJansons, Ā.
dc.date.accessioned2018-03-08T09:10:50Z
dc.date.available2018-03-08T09:10:50Z
dc.date.issued2018
dc.descriptionArticleeng
dc.description.abstractNorway spruce (Picea abies (L.) Karst.) is one of the most important commercial tree species, for which wider spacing are being advocated to reduce management costs and improve radial growth. Nevertheless, little is known about tree and stand parameters at the larger age in stands of extremely low density. The aim of our study was to assess growth and economic profitability of 50 years old low density Norway spruce plantation in Latvia. Allometric parameters for all trees of Norway spruce clonal plantation planted in 1964 with two spacings (1×3 m and 5×5 m) were measured and profitability were estimated. Norway spruce plantation with wider (5×5 m) spacing ensured significantly larger tree diameter and height (35 cm and 25 m, respectively) than trees from higher density trial. However, mean net present value (3% interest rates) was non–significantly (P = 0.12) different between 5×5 m and 1×3 m spacings, 2,571.9 ± 355.6 and 3,085.8 ± 452.9 € ha-1 , respectively. Values observed in low density (5×5 m) plantation fitted well in the observation of impact of density and stand parameters drawn based on National inventory data, showing a considerable potential to use plantations with low density in practice.eng
dc.identifier.issn1406-894X
dc.identifier.publicationAgronomy Research, 2018, vol. 16, no. 1, pp. 113-121eng
dc.identifier.urihttp://hdl.handle.net/10492/3817
dc.identifier.urihttp://dx.doi.org/10.15159/ar.18.014
dc.rights.holderCopyright 2009 by Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestry. No part of this publication may be reproduced or transmitted in any form, or by any means, electronic or mechanical, incl. photocopying, electronic recording, or otherwise without the prior written permission from the Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestryeng
dc.subjectinitial spacingeng
dc.subjecttarget diametereng
dc.subjectclonal plantationeng
dc.subjectnet present valueeng
dc.subjectarticleseng
dc.titleProduction and profitability of low density Norway spruce (Picea abies (L.) Karst.) plantation at 50 years of age: case study from eastern Latviaeng
dc.typeArticleeng

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2018, Vol. 16, No. 1