Download or read book Aspects of Thinning and Fertilization in Norway Spruce and Scots Pine Stands Based on New Experiments in Sweden written by Harry Eriksson and published by . This book was released on 1985 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrient Uptake and Cycling in Forest Ecosystems written by L.O. Nilsson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the research results and discussions presented in this book it becomes clear that a profound understanding of the various interrelationships of the nutritional aspects allows the implementation of specific management strategies to improve stability and productivity of forest ecosystems. In particular the effects of environmental changes as related to the impacts of air pollution, global change and land use on nutrient uptake and cycling processes in forest ecosystems are dealt with in detail. The book is divided into six main issues and each topic contains reviews as well as selected results of recent studies.
Download or read book Thinning of Scots Pine and Norway Spruce Monocultures in Sweden written by Urban Nilsson and published by . This book was released on 2010 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of thinning intensity, thinning interval, thinning form and timing of the first thinning on stand level gross- and net stem volume production in Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies L. Karst) was investigated in a nationwide field experiment across Sweden. In total, 35 Scots pine sites distributed from the south to the north of Sweden and 13 Norway spruce sites located in the south and central parts of Sweden were investigated. Thinning treatments ranged from unthinned control, to light and moderate repeated thinnings, to a treatment where 60-70% of the basal area was removed in a single thinning. In addition, thinning from above was compared to thinning from below and delayed first thinning was compared to early first thinning. The average measurement period was 31 years for Scots pine and 30 years for Norway spruce. All Scots pine thinning treatments reduced the total gross stem volume production compared to the unthinned control, whereas only the heaviest thinning treatments, in which a large proportion of the basal area was removed, reduced the total gross stem volume production for Norway spruce. Thinning from above did not affect total gross stem volume production of Scots pine, but there was a tendency towards lower production in Norway spruce. For Norway spruce, thinning from above resulted in lower net stem volume production than thinning from below. Delaying the first thinning did not affect gross stem volume production for either Scots pine or Norway spruce. Net volume production and volume production in trees with diameter at breast height> 8 cm was higher for the light thinning treatment than for the unthinned control in Norway spruce. In Scots pine, there was no difference between the light thinning treatment and unthinned control in net volume production. For cots pine, the heavy thinning treatments decreased net volume production compared to the unthinned threatment whereas there were no differences in net volume production between the heavy thinning treatments and unthinned control in Norway spruce.
Download or read book Competition in Young Stands of Norway Spruce and Scots Pine written by Urban Nilsson and published by . This book was released on 1993 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scandinavian and Russian Forest Thinning Literature written by and published by University of Joensuu. This book was released on 1997 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long term Forest Fertilization Experiments in Finland and Sweden written by Harry Helmisaari and published by . This book was released on 1992 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Importance of Thinning Grade in Stands of Norway Spruce written by Tord Johansson and published by . This book was released on 1987 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Predication of Regeneration Success and Wood Properties in Naturally Regenerated Stands of Scots Pine written by Dag Olsson Tegelmark and published by . This book was released on 1998 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Boreal Forests written by Seppo Kellomäki and published by Springer Nature. This book was released on 2022-03-01 with total page 727 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive textbook explores the boreal forests of Northern Europe, Finland, Sweden and Norway. Students will gain an overview of the forest ecosystem and the services it provides for modern society. From the production of timber, to the supply of food products or their use as a recreational space for human wellbeing – our forests serve many needs. Accordingly, the respective chapters cover various types of ecosystem service, e.g. supporting, provisioning, regulating and cultural services. The book’s main focus is on the management of boreal forests for the production of these ecosystem services. Addressing modern challenges, e.g. managing vulnerable boreal forests for adaptation to climate change, is an important aspect throughout the volume. Traditional forest management has to adapt and evolve in order to meet the increasing risk of abiotic and biotic damages to our forest biomass. Future forestry graduates will have to face more and more of these challenges; consequently, the book provides them with a wealth of scientific knowhow and possible counter-strategies. Forestry students in the Northern Hemisphere, be it in Europe, North America or Asia, will find this book an excellent reference guide. To make the content more accessible, it has been enriched with a clear structure, numerous illustrations and learning objectives.
Download or read book Growth of Genetically Improved Stands of Norway Spruce Scots Pine and Loblolly Pine written by and published by . This book was released on 2016 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Volume Yield to Mid rotation in Pure and Mixed Sown Stands of Pinus Sylvestris and Picea Abies in Sweden written by Bengt Jonsson and published by . This book was released on 2001 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume yield to mid-rotation in pure and mixed sown stands of Scots pine and Norway spruce was investigated in an experiment in central Sweden. The 43-year-old stands were situated on a 7-ha site and were treated and inventoried at the time of establishment, then at intervals in the life of the stands, to give results at half-rotation age. The dynamics of the mixed stands implied a favourable ecological mixed-stand effect on the height growth of spruce in early development and before crown closure. Even at this stage, pines were taller than spruces, but height was not influenced by admixture with spruce. Pines continued to grow faster than spruces in both height and diameter, resulting in dense mixed stands with dominant pines and co-dominant or suppressed spruces. Diameter of pines was increased by weaker competition for nutrients, while weaker competition for light led to a lower height of dominant pines in mixed stands than in pure pine stands. The results indicate a slight etiolation effect of competition for light in the crown layer. Total volume yield was higher in mixed stands than the mean yield in pure stands of pine and spruce, mainly owing to the dominance of pine in mixed stands. However, it was lower in mixed stands than in pure pine stands. The growth dynamics to the present time indicates that, after a slow start, volume growth of spruce increases remarkably in pure stands and increases slightly in mixed stands. while volume growth of pine began early and is culminating.
Download or read book Current Abstracts written by and published by . This book was released on 1995-03 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Improvement of Shape Stability in Norway Spruce and Scots Pine Sawn Timber written by Henrik Hallingbäck and published by . This book was released on 2010 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yield Prognoses Survival and Damage in Young Stands of Norway Spruce and Scots Pine Growing in Central Sweden written by Jan Naumburg and published by . This book was released on 2001 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quick Bibliography Series written by and published by . This book was released on 1976 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Japan s Agricultural Market and Trade 1979 March 1987 written by Mary E. Lassanyi and published by . This book was released on 1987 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
