Sökning: "skogsavverkning"
Visar resultat 16 - 20 av 35 uppsatser innehållade ordet skogsavverkning.
16. Modelling Hydrological Impacts of Forest Clearcutting through Parameter Regionalization
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Luft-, vatten- och landskapsläraSammanfattning : The aim of this thesis was to test and evaluate whether parameter regionalization of a hydrological model can be used to model the impact of forest clearcutting on streamflow in Sweden. This is an important task to be able to perform water management and impact assessments adequately. LÄS MER
17. Heterogeneous MBS forwarder modeling and co-simulation
Master-uppsats, KTH/Maskinkonstruktion (Inst.)Sammanfattning : The forwarder acts as an important role in mechanized Cut-to-Length timber harvesting system. But the majority of forwarder products on the market are not suspended or simply suspended by bogies which limit the riding quality of forwarder and result in soil damage due to large tireground interaction force. LÄS MER
18. I tigerns rike : en landskapsvetenskaplig studie om två underarters populationsförändring och ekologiska värde för landskapet
Kandidat-uppsats, Högskolan Kristianstad/Sektionen för lärande och miljöSammanfattning : Arbetet är en litteraturstudie och är ett försök att ta reda på två underarter av tigers (Panthera tigris) populationsförändring och anledningen till detta på en tidsskala från 1970 till 2010. De valda underarterna för uppsatsen är sumatratigern och amurtigern. LÄS MER
19. Multi-objective optimization and performance evaluation of active, semi-active and passive suspensions for forestry machines
Master-uppsats, KTH/Maskinkonstruktion (Inst.)Sammanfattning : The development of forestry machines is currently heading towards new solutions that reduce their impact on the environment and in particular on the soft forest soil in which the machines operate. The terrain conditions that forestry machines encounter in their regular duties can be very rough, and if the vehicle-ground interaction is not properly controlled cumulative damage can progressively aggravate these conditions and potentially render a route or a zone impracticable, apart from causing a detrimental effect in the forest environment. LÄS MER
20. Tire-soil interaction analysis of forest machines
Master-uppsats, KTH/Maskinkonstruktion (Inst.)Sammanfattning : Cut-to-length logging is a mechanized method for delimbing trees and cutting them to length. It is a two-machine operation; taken care by a harvester and a forwarder. The forwarder can cause soil rutting, soil compaction and other detrimental after effects. LÄS MER