Sökning: "granstubbar"
Visar resultat 1 - 5 av 7 uppsatser innehållade ordet granstubbar.
1. Granstubbar som substrat för vedlevande skalbaggar : en jämförelse av faunan i gallringsstubbar och slutavverkningsstubbar
Kandidat-uppsats, SLU/Dept. of EcologySammanfattning : I Sverige finns det ca 1 300 skalbaggsarter som är beroende av död ved och gamla träd i olika former. Många av dessa arter har minskat i samband med att våra skogar förändrats och idag är ca 435 av arterna upptagna på den svenska nationella rödlistan. LÄS MER
2. Comparison of Phlebiopsis and urea and their effect when treating young spruces against Heterobasidion spp
Master-uppsats, SLU/Southern Swedish Forest Research CentreSammanfattning : Control of the economically important forest pathogen Heterobasidion spp. can be done by control with chemical and biological agents such as urea and Phlebiopsis. Today in Europe this action is mainly done during the mid stages of the rotation, thinning foremost and to a small extent in final felling. LÄS MER
3. Retention of stumps on wet ground at stump-harvest and its effects on saproxylic insects
Master-uppsats, SLU/Dept. of Forest ProductsSammanfattning : Low stumps represent on their own up to 80% of the dead wood remaining on clear cuts and therefore supply suitable habitat for saproxylic insects i.e. insects depending on dead wood for their survival. LÄS MER
4. Produktivitet vid stubbskörd
L3-uppsats, SLU/Dept. of Forest Resource ManagementSammanfattning : Stump harvest could be found in the late 1970's and the early 1980's. And now when the prices on energy are high it has become an interesting topic again. This work has been conducted within Holmen Skog's stump harvest testing in Norrköping. LÄS MER
5. Risken för spridning av röta vid förröjning i granskog i södra Sverige
L3-uppsats, SLU/Southern Swedish Forest Research CentreSammanfattning : Root rot causes large economical losses for Swedish forestry. The spread of root rot can partly be prevented by treating the spruce stumps in thinnings. Late pre-commercial thinning (PCT) is one of the forestry measures where stump treatment is not used. LÄS MER