110 uppsatser · sida 4 av 8
A recommendation for stand treatment of lodgepole pine (Pinus contorta) is, in a scientific point of view, lacking when it comes to harvesting for biomass energy. Within the next decades it is expected that 280 000 hectares of lodgepole pine will have reached thinning age on the …
… exposure and propensity for continued combustion of standing CWD of pine (Pinus sylvestris). Two types of CWD were studied. Firstly, wood that had been dead for one to ten years. Secondly, wood that had been dead for several decades. In the burning experiments, logs of approx. 1 …
de gotländska skogarnas historik, nuläge och framtid
… Hela 73 %av virkesvolymen utgörs av tall, vilket är en högre volymandel tall (Pinus sylvestris) än vad något annat län i landet har. Tillväxten på skogsmarken är i genomsnitt 3,4 m'sklha, vilket är 0,9 m'sk/ha lägre än riksgenomsnittet. Under 1990-talet avverkades en volym …
ett exempel på medbestämmande planering
… with different ages and characters. The most common tree species is pine (Pinus sylvestris), birch (Betula pendula, Betula pubescens), aspen (Populus tremula) and sallow (Salix caprea). There is also a lot of juniper (Juniperus communis) in many parts of the area. By …
… be found in the main valley area, with moss soil and forest dominated by pine (Pinus sylvestris (L.)). The two variables showed a significant positive correlation. This could be due to the fact that chloride is the limiting factor for formation in Swedish soil or that the two …
en skogshistorisk studie av Hällforsmarken under 1900-talet
… The species composition has shifted towards and increase of Scots pine. Pinus contorta has been introduced by afforestation in the area of the study. The reason that the forest in the area of the study has changed so radically is due to the fact that it first was used by a local …
… the possibility of automatic enduse orientated quality grading of Scots Pine (Pinus sylvestris) saw logs by using a gamma-ray log scanner. Iggesund Timber AB has the possibility to grade logs automatically with TINA, a two way gamma-ray log scanner. Grading and classification of …
Modern forestry management may disadvantage some mykorrhiza forming fungi because; they are dependent on late successions and cannot survive the constantly recurring breaks in the continuity of their host tree. For this study the specie goliatmusseron (Tricholoma matsutake) was …
en studie åt Holmen Skog AB
… område, från Norrköping till Lycksele och för de olika trädslagen tall (Pinus sylvestris) och gran (Picea abies). Huvudsyftet med kalibreringen har varit att skatta värdet på SIH givet att man vet värdet på SIS och andra ståndorts- och beståndsegenskaper. Eftersom SIS i sig är …
… rhamnoides) for a short period, followed by a total dominance of pine (Pinus sylvestis). Traces of human activity are subtle but the occurrence of charred particles, increased influence of Betula and the presence of light demanding species, it cannot be ruled out that the area …
… 1993. Beech (Fagus sylvatica), douglas fir (Psedotsuga menziesii) and pine (Pinus sylvestris) and spruce were planted in the tree areas, a dense shelter, a sparse shelter and an open area adjacent to the shelters. Since these results is based on only one experiment no final …
The aim of this work is to demonstrate how the net present value (NPV) at the time of the first thinning depends on the spacing after pre-commercial thinning, and show how net value from first thinning in same stand is influenced. This study is performed with models based on …
dikningens och gödslingens betydelse vid beskogning på en avslutad torvtäkt i Värmland
… SW Sweden. The experimen-tal design include planting with Scots pine (Pinus sylvestris), in combination with various drainage intensities (20, 30, and 40 m between ditches), and fertilizer doses 0, 100, and 200 g PK per seedling applied at the date of planting. The aim of this …
… explosion”. The main food source for moose during the winter is young pine (Pinus sylvestris) and birch (Betula spp.). The high moose population has therefore lead to high damage on pine forests over big areas. These forests are now about to be commercial thinned for the first …
… were differences in the growth-response between the tree species Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.). Another question of issue was if there were differences in the growth response between trees of different sizes. It is within the …
