The ressources of energy wood in undergrowth and understorey of felling age Scots pine stands in drained forests. Project leader Aigars Indriksons Duration 2018 - 2021 Research focus 4. Development and adaptation of technologies for obtaining high-value agricultural and forest products, as well as in veterinary medicine Source of funding Internal grant Project partners Mārtiņš Graudums Sindija Ozoliņa Evelīna ErzamaAnita Ieva Ieva Uerte Sanita RudzīteEdgars Baiks Mirdza SapaleNora Krēgere Description of project The aim of research To assess the volume of energy wood resources in the undergrowth and understory of drained forests and the economic feasibility of their extraction. The tasks of project: to determine the wood resources in the understory and the undergrowth in different site types of drained foreststo develop a mathematical model for estimating the amount of energy wood in drained foreststo provide a silviculturally-economic assessment of the use of wood stored in the understory and undergrowth Results There are the biomass measurements of undergrowth and understorey in forests of Agency "Forest Research Station" in Jelgava Forest district performed. The mass models are designed to calculate the mass of absolutely dry wood for countrywide data of State Forest Resources Monitoring. The results of the study conclude that the highest amount of biomass of undergrowth and understorey is obtained in stands with lower density. There, in the drained forest site types, most biomass is obtained in Mercurialiosa mel. forest site type - in average 10.55 t/ha and in Oxalidosa turf. mel. - in average 7.96 t/ha. The the lowest biomass is found in forest site type Callunosa turf. mel. - in average 0.7 t/ha and in Callunosa mel. - in average 0.18 t/ha.