Sökning: "Causal forest"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden Causal forest.

  1. 1. Automatic and experimental methods to studying forwarding work

    Författare :Jussi Manner; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Although forwarding has been carried out for 50 years, much is still unknown about this work. This is partly because there are numerous influential factors, and relevant data are often difficult to gather. In current forwarding productivity literature, there is generally a trade-off between representativeness and work element-specificity. LÄS MER

  3. 2. Nitrogen, parasites and plants : key interactions in boreal forest ecosystems

    Författare :Joachim Strengbom; Lars Ericson; Gaius R Shaver; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Critical loads; Deschampsia flexuosa; amino acids; mycorrhizal fungi; natural enemies; N deposition; N limitation; vegetational composition; Valdensia heterodoxa; Vaccinium myrtillus;

    Sammanfattning : In the work described in this thesis I studied how increases in nitrogen (N) inputs may affect plant community structure in boreal forest understorey vegetation. These phenomena were investigated in N fertilization experiments and along a national N deposition gradient. LÄS MER

  4. 3. Modeling nutrient cycling and sustainable forest growth in a changing world

    Författare :Patrik Wallman; LUCSUS; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; nutrients; sustainability; ForSAFE; Chemical technology and engineering; forestry technology; forestry; Silviculture; system dynamics; forest growth models; dynamic modeling; Kemiteknik och kemisk teknologi; skogsbruk; skogsteknik; Skogsvetenskap;

    Sammanfattning : It took 70-80 years to realize the width of the impact of industrialization on the forest ecosystems since a forest ecosystem is a "slow system" as seen from a human perspective. An anticipated future climate change and increasing carbon dioxide and ozone levels will change the conditions even more with time and the widely used statistical forest growth models will not be applicable anymore. LÄS MER

  5. 4. Quantitative Studies on Pricing and Consumer Behavior

    Författare :Hampus Poppius; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Tacit collusion; Pricing; E-commerce; Vertical restraints; Resale price maintenance; Causal machine learning; Generalized random forest; Attention; Natural field experiment; Background music;

    Sammanfattning : .... LÄS MER

  7. 5. To leak or not to leak? : Land‐Use Displacement and Carbon Leakage from Forest Conservation

    Författare :Sabine Henders; Madelene Ostwald; Martin Persson; Julie Wilk; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Climate change; land‐use change and deforestation; accounting methods; consumer and producer responsibility; REDD ; Klimatförändring; markanvändning och avskogning; redovisningsmetoder; konsument‐ och producentansvaret; REDD ;

    Sammanfattning : This thesis investigates the question how emissions from land‐use displacement can be assessed and accounted for, using the example of carbon‐leakage accounting in the planned UNFCCC mechanism on ‘Reducing Emissions from Deforestation and Forest Degradation’ (REDD). REDD serves here as example of an international forest conservation policy that might be effective locally but could lead to displacement of deforestation to other countries. LÄS MER