136 uppsatser · sida 7 av 10
… prizes as pine. About 2000 hybrid larches per ha were planted 1974. After four thinnings and one storm there’s now standing 230 trees in the dense shelter and 145 in the sparse shelter. Below the shelters and on one open area spruce (Picea abies) were planted in 1990. Due to …
… are forest residues from final fellings, whole trees from direct wood fuel thinnings, non industrial wood and industrial by-products from sawmills. The main effort to investigate Sveaskog´s production possibilities has been made to calculate the possible annual amount of forest …
en kvalitativ intervjustudie bland större privata virkesleverantörer
… good. It is important that the business runs smooth and the quality of the thinning or other silvicultural methods is good. Some of the suppliers said that the local contact person from the forest company is more important than the actual company. The suppliers in this study are …
… - Is it profitable to take away all the damaged stems at the first commercial thinning, to be able to manage an undamaged ”repaired” stand? - Should you clear cut the stands with the most severe damage earlier than normal and instead regenerate with spruce (Picea abies) if the …
effekter på produktivitet och kvarvarande bestånd
… of SCA´s forest land area in Västerbotten, are in need of pre-commercial thinning (PCT) every year. Within the management district, the areas annually treated with PCT must increase, in order to decrease the area with an urgent need for PCT. This can be done by employing more …
… evaluate the effect of these variables on the disease incidence. Further, the thinning performed during the time for spore dispersal and its relationship to injured stands is examined. The stand data material originates from Holmen Skog AB database for their forest land …
… a enjoyment pint of view. In the plan two rejuvenationcuttings and a number of thinning measures has been proposed during the upcoming 10 years. The forest in Skräddarbacken is a less used urban forest. The area is about 30 hectares big and is mostly used by the citizens of …
… to this calculation the percentage by volume of broad-leaved trees in the thinning stands should be at a level of 21.4 % and in the final cut stands the percent by volume should be 14.6 %. These volumes are supposed to be brought in from an area of 18 322 hectares including …
… and economic aspects. Economic calculations show that the intensity of thinning and final cut has a great impact on the economic result as regards the dependency of the size of the forest. Forest estates which today are divided by means of 3 cap 5, 7 §§ FBL are in an economic …
… an extra size of grapple that operators who perform forwarding both in thinning and final felling will appreciate. The conclusion of this report is that Hultdins made the right decisions when they developed Super Grip 2.
… forestry. With the word felling potential means regeneration felling and thinning. The exam will answer the questions: What information is needed to build a relevant forecast model? Is this information available today? Is there information to buy that would improve the forecast …
… plan with clear guidelines. To be granted permission to manage, i.e. through thinning, the native forests on a property it is required to have a forest management plan that is approved by the Forestry Board in the province in question (Thill, B. 2006/2007). The methodology of …
… 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 investigate, at the Torsby district of the Stora Enso forest company, how well the present …
… affected by the pipe bending procedure. Effects such as initial ovalization, thinning, thickening and plastic hardening from the bending procedure are examined and the mechanical properties of pipe bends containing these effects are investigated. This has been evaluated by …
… affected by the pipe bending procedure. Effects such as initial ovalization, thinning, thickening and plastic hardening from the bending procedure are examined and the mechanical properties of pipe bends containing these effects are investigated. This has been evaluated by …
