THE POTENTIAL FOR COMPLETE BIOMASS UTILIZATION IN THINNING YOUNG STANDS OF NORWAY SPRUCE

Johansson, T. 1999. Biomass production of Norway spruce ( Picea abies (L.) Karst.) growing on abandoned farmland. Silva Fennica 33(4):261-280.

Nilsson, U., Elfving, B. & Karlsson, K. 2012. Productivity of Norway spruce compared to Scots pine in the interior of northern Swed en. Silva Fennica 46(2): 197 – 209.

Shtibe, U. 1969. The evolution of tree foliage sources at the old stands of spruce in Latvia. In the book: State of the art and outlook for utilization of tree foliage. Riga :106- 111. (in Russian)

Tomchuk, R.J.&Tomchuk, G. N. 1973. The use of the tree foliage in the national economy. Moscow. Publisher «Lesnaja Promishlennost», 359 p. (in Russian)

Kalnins, A. (ed.) 1978. Forests for agriculture . Moscow. Publisher « Lesnaja Promishlennost», 191 p. (in Russian).

Wetzel, S., D uchesne, L. and Laporte, M. 2006. Bioproducts from Canada's Forests: New Partnerships in the Bioeconomy. Springler, p. 251

Liu,c. & Westman,c. J. 2009: Biomass in a Norway spruce –Scots pine forest: a comparison of estimation methods. Boreal Env. Res.14: 875–888.

Wang, J., Liu, S., Gallagher, T., DeVallance, D. and Denes, L. 2012. Forest Biomass Utilization for Biofuels and Bioproducts. International Journal of Forestry Research. Volume 2012, Article ID 656834, 2 pages.

Daugavietis, M. 2013. Latvian experience: potential for tree nonwood biomass utilization.13th SGEM Geo Conference on Water Resources, Forest, Marine and Ocean Ecosystem. Conference proceedings vol. 1, 353-360 pp.

Daugaviete, M., Korica, A. 2013. The impact of tree foilage utilization on mineral substance turnover in forest ecosystems. Water Resources. Forest, Marine and Ocean ecosystems. Conference Proceedings. 13th International Multidisciplinary Scientific Geoconference SGEM 2013 16-22 June, Albena Co., Bulgaria, pp. 797-804.

Polis, O. a nd Spalvis, K. 2013. Using value of tree foliage in Lavia. Water Resources. Forest, Marine and Ocean ecosystems. Conference Proceedings. 13th International Multidisciplinary Scientific Geoconference SGEM 2013 16 -22 June, Albena Co., Bulgaria, pp. 805-811. 14th SGEM GeoConference on Water Resources. Forest, Marine and Ocean Ecosystems

Grote, R. 2002. Foliage and branch biomass estimation of coniferous and deciduous tree species. Silva Fennica 36(4): 779-788.

Repola, J. 2009. Biomass equations for Scots pine and Norway spruce in Finland. Silva Fennica 43(4): 625–647.

Tehniskie norādījumi egļu īscirtmeta plantāciju projektēšanai un ierīkošanai Latvijas PSR. 1983., lpp.8. (in Russian)

Liepa, I. Pieauguma mācība. LLU, Jelgava, lpp. 122 (in Latvian)

Arhipova, I. and Bāliņa, S. 2006. Statistika ekonomikā un biznesā . Datorz inību centrs. 360 p. ( in Latvian).

Johansson, T. 1999. Biomass production of Norway spruce ( Picea abies (L.) Karst.) growing on abandoned farmland. Silva Fennica 33(4):261-280.

Nilsson, U., Elfving, B. & Karlsson, K. 2012. Productivity of Norway spruce compared to Scots pine in the interior of northern Swed en. Silva Fennica 46(2): 197 – 209.

Shtibe, U. 1969. The evolution of tree foliage sources at the old stands of spruce in Latvia. In the book: State of the art and outlook for utilization of tree foliage. Riga :106- 111. (in Russian)

Tomchuk, R.J.&Tomchuk, G. N. 1973. The use of the tree foliage in the national economy. Moscow. Publisher «Lesnaja Promishlennost», 359 p. (in Russian)

Kalnins, A. (ed.) 1978. Forests for agriculture . Moscow. Publisher « Lesnaja Promishlennost», 191 p. (in Russian).

Wetzel, S., D uchesne, L. and Laporte, M. 2006. Bioproducts from Canada's Forests: New Partnerships in the Bioeconomy. Springler, p. 251

Liu,c. & Westman,c. J. 2009: Biomass in a Norway spruce –Scots pine forest: a comparison of estimation methods. Boreal Env. Res.14: 875–888.

Wang, J., Liu, S., Gallagher, T., DeVallance, D. and Denes, L. 2012. Forest Biomass Utilization for Biofuels and Bioproducts. International Journal of Forestry Research. Volume 2012, Article ID 656834, 2 pages.

Daugavietis, M. 2013. Latvian experience: potential for tree nonwood biomass utilization.13th SGEM Geo Conference on Water Resources, Forest, Marine and Ocean Ecosystem. Conference proceedings vol. 1, 353-360 pp.

Daugaviete, M., Korica, A. 2013. The impact of tree foilage utilization on mineral substance turnover in forest ecosystems. Water Resources. Forest, Marine and Ocean ecosystems. Conference Proceedings. 13th International Multidisciplinary Scientific Geoconference SGEM 2013 16-22 June, Albena Co., Bulgaria, pp. 797-804.

Polis, O. a nd Spalvis, K. 2013. Using value of tree foliage in Lavia. Water Resources. Forest, Marine and Ocean ecosystems. Conference Proceedings. 13th International Multidisciplinary Scientific Geoconference SGEM 2013 16 -22 June, Albena Co., Bulgaria, pp. 805-811. 14th SGEM GeoConference on Water Resources. Forest, Marine and Ocean Ecosystems

Grote, R. 2002. Foliage and branch biomass estimation of coniferous and deciduous tree species. Silva Fennica 36(4): 779-788.

Repola, J. 2009. Biomass equations for Scots pine and Norway spruce in Finland. Silva Fennica 43(4): 625–647.

Tehniskie norādījumi egļu īscirtmeta plantāciju projektēšanai un ierīkošanai Latvijas PSR. 1983., lpp.8. (in Russian)

Liepa, I. Pieauguma mācība. LLU, Jelgava, lpp. 122 (in Latvian)

Arhipova, I. and Bāliņa, S. 2006. Statistika ekonomikā un biznesā . Datorz inību centrs. 360 p. ( in Latvian).