Growth and yield of 15-year plantations of pine, spruce and birch in agricultural land

Daugaviete, M., Latvian State Forest Research Inst. Silava, Salaspils; Lazdins, A., Latvian State Forest Research Inst. Silava, Salaspils; Lazdina, D., Latvian State Forest Research Inst. Silava, Salaspils; Makovskis, K., Latvian State Forest Research Inst. Silava, Salaspils; Daugavietis, U., Latvian State Forest Research Inst. Silava, Salaspils

Growth and yield of 15-year plantations of pine, spruce and birch in agricultural land

2017

Daugaviete, M., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Lazdins, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Lazdina, D., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Makovskis, K., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Daugavietis, U., Latvian State Forest Research Inst. Silava, Salaspils (Latvia)

The growth data and the potential returns from 15-year-old plantations of pine Pinus sylvestris L. (6 trial sites), spruce Picea abies Karst L. (9 trial sites) and silver birch Betula pendula Roth (13 trial sites), established in abandoned agricultural lands in a variety of soil types (sod calcareous, anthrosols, podzolic, podzols, gley, podzolic gley, alluvial), using the planting density 2,500 and 3,300 and also 5,000 trees/ha are analysed. For tree plantations in agricultural soils (alluvial sod-gley, gley-sod podzolic, sod-podzolic gley, typic podzol) at the survival of 80-98% the stock volume for 15-year pine is as high as 102-155 m**3haE−1 with the volume growth 5.72-8.94 m**3haE−1 per year; the same indices for spruce in agricultural soils (gley sod-calcareous, sodpodzolic, cultivated, sod-podzolic gley, alluvial sod-gley, base-unsaturated brown) are 75-98 m**3haE−1 and 10.26-15.76 m**3haE−1, respectively. For 15-year plantation birch the mentioned indices may vary from 61 to 169 m**3haE−1 and from 7.54 to 29.82 m**3haE−1 per year. The lowest volume growth (4.66 m**3haE−1 per year) is for birch in heavy clay soil (gleyic sod-podzolic), the highest (29.72-29.82 m**3haE−1 per year) – in cultivated soils and pseudogley soil. Plantation cultivation of pine, spruce and birch in agricultural lands may by the age of 15 years yield with a profit such forest products as pulpwood, fire wood and woody biomass. The gross income gained from first commercial thinnings of plantation pine, utilizing pulpwood, fire wood and logging residue biomass, may vary from 679-2267 EUR haE−1, for spruce the same indices are 1644-3272 EUR haE−1, for birch - 683-2188 EUR haE−1.

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Mots clés AGROVOC

analyse de variance analysis of variance betula pendula calcul calculation crecimiento croissance cubage d'arbre experimentation farmland forest plantations gross income growth latvia letonia lettonie picea abies pinus sylvestris rendement rendimiento soil types statistical methods terre agricole tipos de suelos tree and stand measurement type de sol volume volumen yields

Informations bibliographiques

Publié dans

Rural Sustainability Research (Electronic resource) (Latvia) | Scientific journal of Latvia University of Agriculture

Volume 37 Numéro 332 ISSN 2256-0939

Pagination

p. 38–50

D'autres materias

Cubicacion de arboles; Metodos estadisticos; Methode statistique; Calculo; Plantation forestiere; Experimentacion; Analisis de la varianza; Plantacion forestal; Tierras agricolas

Langue

anglais

Note

Summary (En)

10 tables, 1 fig., 38 ref.

Continues edition: Proceedings of the Latvia University of Agriculture, ISSN 2255-8535 (Online), ISSN 1407-4427 (Print)

Type

Web Site; As

Sur AGRIS depuis: 2018-03-15

Format: AGRIS AP

Fournisseur de données

Cette notice bibliographique a été fournie par Fundamental Library of Latvia University of Life Sciences and Technologies