83 uppsatser · sida 4 av 6
Tree fiber lengths controls properties like strength and smoothness in paper and other wood products. For forest researchers it is of interest to be able to determine the fiber lengths in standing trees. Mörling et al. (2003), among others, have developed methods to estimate …
… included 1- year old conventional seedlings of Norway spruce (Picea abies L.). The results for the first field experiment showed an overall survival rate of 85 %. All of the reference seedlings were alive, while 5 % were deadly damaged by the pine weevil. Between 5 ? 15 % of the …
omfattning och påverkande faktorer
… in south-central Sweden, it was discovered that shoots of spruce Picea abies, plants to a seemingly large extent had been browsed by deer. The area inhabits a dense red deer population, alongside with moose and roe deer, and red deer is thus suspected to cause the damage. The …
en metod för tillämpning i ett kontinuitetsskogsbruk?
… in each stand. Beside oak, the stands are dominated by Norway spruce (Picea abies) and beech (Fagus sylvatica).The number of stems of young oaks-, between 4 and 20 cm, were between 38 and 64 per ha. In one of the stands the number of oak seedlings (
… Fagus sylvatica f. osbyensis, Juniperus communis f. suecica, Picea abies f. cruenta, Populus tremula f. erecta, Prunus padus f. colorata and Quercus robur f. pendula.The study aimed at clarifying a number of questions. Firstly, the existence of a mother plant had to be examined …
… from Heterobasidion annosum in stands mainly dominated by Norway spruce (Picea abies (L.) Karst.). Previously studies show that stump treatment with Rotstop® S and urea gives effective protection against Heterobasidion annosum in stands with mainly spruce. The Forestry in Sweden …
… in 1995 by Erik Rönnberg. The dominating species is Norwegian spruce (Picea Abies) and the average age is high due to selective cutting. The aim of this study has been to analyze how the forest on the property should be managed and demonstrate how a better estimated forest data …
… längdtillväxt.Under hösten 2009 samlades 300 täckrotsplantor av gran (Picea abies) in från olikalokaler i Alvesta-Växjö sbo. De var både kopparbehandlade (Cu-plantor) och ickebehandlade (kontroll) och de var från två planteringssäsonger hösten 2008 och våren2009. I fält mättes …
utvärdering av tre mätmetoder
… arelationship between temperature, moisture content and MOE forspruce (picea abies) and pine (pinus sylvestris) in order to justly comparemeasurements made during different environmental conditions.There is reason to believe, that certain measurement errors arise withthe use of …
… elaphus) cause extensive damage to economically valuable spruce trees (Picea abies) in Swedish forests. The underlying causes for bark-stripping are not fully understood, and the frequency and severity of damage unpredictably differ between regions. In this study, I investigated …
a comparison between high and low Norway spruce and birch stumps : a measuring of the efficacy of Phlebiopsis gigantea stump treatment
… be of a great interest if the stump height, of both Norway spruce(Picea abies (L.) Karst.) and birch (Betula spp.), affects the susceptibility to Heterobasidion spp. aftera pre?commercial thinning is performed.The objective of this study was to investigate if there were any …
… utifrån olika synvinklar, beskriva konkurrenssituationen mellan gran (Picea abies) och lövträd efter brunns- och totalröjning.I blockförsöket fanns fyra försöksled som brunnsröjdes: två olika brunnsradier med resp. utan vertikalröjning, d.v.s. kapning av sidogrenar på oröjda …
… utifrån olika synvinklar, beskriva konkurrenssituationen mellan gran (Picea abies) och lövträd efter brunns- och totalröjning.I blockförsöket fanns fyra försöksled som brunnsröjdes: två olika brunnsradier med resp. utan vertikalröjning, d.v.s. kapning av sidogrenar på oröjda …
Sitka spruce (Picea sitchensis (Bong.) Carr) is just like Norway spruce (Picea abies) a species in thegenus picea. The natural range of Sitka spruce is a narrow strip along the west coast of North America. Itis the most coastal of all picea species, and very dependent on the …
… (light dominant), even then they is less common.Studies in spruce (Picea abies) have showed that light quality might be important for how dormancy is induced. So it is many aspects of lights that theoretically can be of importance for how dormancy is induced in plants.Earlier …
