84 uppsatser · sida 6 av 6
… The Spruce bark beetle ruins millions of cubic meter of Norway spruce (Picea abies) in Sweden alone, with more frequent storm felling and a larger amount of wind thrown threes in the forests there will also be room for an advancing reproduction. The aim of this study is to …
Kärlväxtflora och vegetationsutveckling efter naturvårdsbränning i två småländska naturreservat
… and fire favoured species were affected, and how deciduous trees and spruces (Picea abies) were affected. The study shows that the soil increased, as well as the fire favoured species. The structure of species was changed to being more dominated by herbs than sticks. New spruces …
-Designförslag i tre tänkta miljöer
Denna uppsats presenterar tre designförslag på samplanteringar med barrväxter i fokus. Designförslagen är gjorda till tre fiktiva platser med olika ståndort i växtzon 5, en liten entréplantering i västerläge med kalkhaltig jord, en mellanstor plantering i söderslänt med …
Resultat från 3 olika bestånd i Västra Götaland. Åldern på bestånden är 30, 50 och 50 år. Varje provyta var 100 m2. Bestånden har vuxit utan gallring och gödsling och skötts enligt en metod som kallas Hyssnametoden. Syftet med studien var att beskriva, följa upp och utvärdera …
Densitetsmätningar och permeabilitetstest enligt EN 927-5 har utförts för att studera huruvida granvirkes fysikaliska egenskaper i kombination med applicerat färgsystem påverkar permeabiliteten. De egenskaper som studerats är frod- och senvuxenhet, splint- och kärnved samt …
… on age and different mixtures between pine (Pinus sylvestris), spruce (Picea abies) and birch (Betula pubescense and Betula pendula). Eatch pictures was about 300 ? 400 m2 and was divided in to nine equal squares with the aerial discription in m2. The vegetationheight was …
… studies. All species in the tree and bush layer, except for Norway spruce (Picea abies, (L. Karst.)) and birch (Betula sp. L.), were exposed to browsing. Over 90 % of the trees were damaged and the difference in height between five and eight times for species as mountain ash …
… denser and the future for M. grossa at the localities is obscure. Moreover, Picea abies has increased rapidly at the localities. The old deciduous trees at the localities should be protected and forest clearance is one measure that could be carried out to ensure the continuous …
Wood has always been an important material for people, and it is used for many applications. As for example, fuel for cooking and heating houses, construction materials and for constructing means of transport. Since wood also is a material that with time biologically degrades …
