110 uppsatser · sida 2 av 8
en brandhistorisk analys med förslag för framtida skötsel
… by cross-dating fire scars in samples taken from living and dead Scots pine (Pinus sylvestris). Local fire chronologies were established at 17 points in the forests in and around Fulufjället National Park by cross-dating fire scars on 54 samples. The oldest year-ring dated from …
The effects of Reindeer mechanical damages on the planted regeneration of Pinus sylvestris and Pinus contorta. Semi-domesticated reindeer can damage young trees. In late winter reindeer rub their antlers against young trees. The aim of this study was to quantify those damages …
en jämförelse av produktion och potentiell kvalitet hos försöksbestånd i Jämtlands län
Swedish forests are dominated by just two conifer species Norway spruce and Scotch pine. They are not able to achieve the highest possible production or fulfill industry demands for raw materials. The introduction of exotic conifers can potentially meet these shortcomings and …
Extensive planting of the tree species lodgepole pine (Pinus contorta var. latifolia) during the 1970s and 80s has resulted in large areas now being available for commercial thinning. However, the varying quality of the stands creates a problem. The purpose of this study was to …
… contrary to situations during crown fire. A clear-felled area with slash from Pinus sylvestris was used as a substitute for clear-felled lodgepole pine. Branches from lodgepole pine with cones were placed on and between slash heaps of different sizes, and the area was burned …
… is a limit to how much you can allow the green areas to disappear. Old pine Pinus silvestris stands are characteristic for Uppsala and are preserved in the town and its surroundings. Old coarse pine is a particular responsibility of the municipality's nature conservation actors …
In Sweden, large scale planting of Lodgepole pine (Pinus contorta var. latifolia) started in the beginning of the 1970?s. At first, the aim was production of pulpwood, but later, also production of timber became considered realistic. Today, Sweden has more than 520 000 ha of …
… in Sweden. Potential areas where explored In this work for cultivation with Pinus contorta var. latifolia Engelm., Larix sukaczewii Dylis, Abies lasiocarpa (Hook.) Nutt., Populus × wettsteinii Hämet-Ahti (tremula x tremuloides) and Picea mariana (Mill.) Britton et.al. for …
är gran (Picea abies) viktig i vissa habitat?
In Scandinavia, capercaillie are often associated with pine trees (Pinus sylvestris) in winter, with pine needles as the main diet. Few dietary studies have been conducted in Sweden and winter diet is subject to little debate. The interesting thing is that this "pine specialist? …
a study of stumps, roots and artificial spore infections of stumps
The Lodgepole pines susceptibility to Heterobasidion spp. was investigated in three parts ofthis study. In the first part, discs from freshly cut stumps were collected and analyzed to seeif the fungi can spread and grow naturally in Lodgepole pine stands. In the second part …
överlevnad och tillväxt
… att undersöka hur höstplantering av täckrotsodlad gran (Picea abies) och tall (Pinus sylvestris) överlever och utvecklas jämfört med vårplanterad. Detta i ett led för att se om man kan utöka planteringssäsongen för att få en jämnare arbetsbelastning över säsongen både i …
Tall (Pinus sylvestris L.) är ett av Sveriges viktigaste trädslag. Med ökad efterfrågan på vedråvara samt ökade krav på naturavsättningar är det viktigt att öka produktionen i skogen. Röjning och tidig gödsling ger ökad volymproduktion men kan ge icke önskvärd påverkan på …
Tallen (Pinus Sylvestris L.) är för den svenska skogsindustrin ett av de viktigaste trädslagen. Tallens kvalitet är påverkbar genom röjning, där röjningens intensitet och tidpunkt är avgörande för tallens diametertillväxt, årsringsbredd, kvistdiameter, krongränshöjd, stamform …
results 9-19 years after stand establishment
… on stand stem density, growth parameters and tree damages for Scots pine (Pinus sylvestris L.) after direct seeding and planting. The study also attempts to simulate growth until first thinning. Regeneration cost per hectare and tree was also evaluated for the different …
föryngringsresultat efter 10 år
… utgjorde dataunderlag till studien. De flesta trakter var föryngrade med tall (Pinus sylvestris L.) och gran (Picea abies L. Karst.), men även contorta (Pinus contorta Dougl. var. latifolia) förekom. Totalt innehöll materialet information om 10 479 st. plantor fördelade på 50 …
