Distribution, characteristics and potential of biomass-dense thinning forests in Sweden

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/35463 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/35463 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/35463 archive 351 disk0/00/01/13/42 2016-01-15 08:52:52 2021-08-27 17:24:56 2016-01-15 08:52:52 article show Fernandez-Lacruz R. Di Fulvio F. 8861 0000-0002-7317-6360 Athanassiadis D. Bergstroem D. Nordfjell T. Distribution, characteristics and potential of biomass-dense thinning forests in Sweden pub iis_ecl prog_esm early thinning; small-tree harvesting; unthinned stand; GIS; wood fuel; bioenergy; biomaterial Understanding the characteristics of unutilized biomass resources, such as small-diameter trees from biomass-dense thinning forests (BDTF) (non-commercially-thinned forests), can provide important information for developing a bio-based economy. The aim of this study was to describe the areal distribution, characteristics (biomass of growing stock, tree height, etc.) and harvesting potential of BDTF in Sweden. A national forest inventory plot dataset was imported into a geographical information system and plots containing BDTF were selected by applying increasingly stringent constraints. Results show that, depending on the constraints applied, BDTF covers 9-44% (2.1-9.8 M ha) of the productive forest land area, and contains 7-34% of the total growing stock (119-564 M OD t), with an average biomass density of 57 OD t ha^-1. Of the total BDTF area, 65% is located in northern Sweden and 2% corresponds to set-aside farmlands. Comparisons with a study from 2008 indicate that BDTF area has increased by at least 4% (about 102 000 ha), in line with general trends for Sweden and Europe. Analyses revealed that the technical harvesting potential of delimbed stemwood (over bark, including tops) from BDTF ranges from 3.0 to 6.1 M OD t yr^-1 (7.5 to 15.1 M m^3 yr^-1), while the potential of whole-tree harvesting ranges from 4.3 to 8.7 M OD t yr^-1 (10.2 to 20.6 M m3 yr^-1) depending on the scenario considered. However, further technological developments of the harvest and supply systems are needed to utilize the full potential of BDTF. 2015 published Finnish Society of Forest Science 10.14214/sf.1377 XJ-15-220 Silva Fennica; 49(5):1377 [2015] [doi:10.14214/sf.1377] 65 public Silva Fennica 49 5 art. id 1377 1377 TRUE 2242-4075 FALSE info:eu-repo/semantics/article