Essays about: "tremula"

Showing result 16 - 20 of 41 essays containing the word tremula.

  1. 16. Naturlig föryngring efter brand : Fyra trädarters etablering i relation till mikromiljö och spridningsavstånd på Salabrännan

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Maria Jakobsson; [2017]
    Keywords : Plantetablering; mikromiljö; bränningsdjup; spridningsavstånd; skogsbrand; Salabrännan; Västmanland; Seedling establishment; microenvironment; fire severity; depth of burn dispersal distance; forest fire; Västmanland;

    Abstract : Sommaren 2014 inträffade i Västmanland en med Sveriges mått mätt mycket stor brand, Salabranden. Brandfältet, och i synnerhet den del som blivit naturreservat, ger en unik möjlighet att studera hur den naturliga plantetableringen efter brand ser ut för några av Sveriges vanligast förekommande trädslag. READ MORE

  3. 17. Forest succession on abandoned agricultural land and its carbon stock

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Parisa Mazinanian; [2017]
    Keywords : forest succession; carbon stock; tree species; understorey vegetation; agricultural land abandonment; biomass; secondary forest; old-growth forest; soil carbon; carbon sequestration;

    Abstract : The development of secondary forest on abandoned agricultural lands has proven significant to land cover changes, especially in marginal areas across Europe. It is therefore important to quantify secondary forest succession in order to sustainably manage forest and agricultural resources, and also for modelling climate change. READ MORE

  4. 18. Cellulosasyntesgener i två Populusarter : släktskap och uttrycksmönster under vedbildning

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Jenny Dahl; Hilda Mikaelsson; [2016]
    Keywords : Populus trichocarpa; Populus tremula; genom; cellväggssyntes;

    Abstract : Cellulosa är ett förnyelsebart material som är högaktuellt i dagens miljömedvetna samhälle. För att kunna nyttja den effektivt krävs kunskap om de processer som styr vedbildning och trädens tillväxt. READ MORE

  5. 19. Natural regeneration on clear cuts in Southern Sweden : how fencing, soil treatment and distance from broad-leaved forest affect tree regeneration and ground vegetation

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Jón Ásgeir Jónsson; [2016]
    Keywords : natural regeneration; forest restoration; pioneers; noble broadleaves; Picea abies; soil scarification; fencing; distance from broad-leaved forest; Raslångens ekopark;

    Abstract : The forests of Europe have seen a dramatic shift in structure, species composition and area coverage in the last centuries. Large areas previously covered by a mixed broad-leaved forest are now used for agriculture or other land uses. READ MORE

  6. 20. Nutrient cycling by the herbivorous insect Chrysomela tremulae : Nutrient content in leaves and frass and measurements of ingestion, egestion and exuviation rates

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Sara Andersson; [2016]
    Keywords : Insect herbivory; nutrient cycling efficiencies; approximate digestibility; Chrysomela tremulae; increased C:N;

    Abstract : Insect herbivory on forest canopies strongly affects ecosystem nutrient cycling and availability in a variety of ways, e.g. by changing the quantity, quality and timing of nutrient input to forest soils. READ MORE