Essays about: "Pinus sylvestris"

Showing result 1 - 5 of 150 essays containing the words Pinus sylvestris.

  1. 1. Genetic diversity and hardiness in Scots pine from Scandinavia to Russia

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

    Author : Jenny Olsson; [2019]
    Keywords : Pinus sylvestris; recolonization history; genetic diversity; cold hardiness; clinal variation;

    Abstract : The postglacial recolonization of northern Europe supposedly originated from Western Europe and the Russian Plain, however, recent molecular and macrofossil-based investigations suggest that the history may be more complex than previously thought. This study aims to investigate the genetic diversity and population structure of Scots pine from Scandinavia to Russia to re-evaluate its recolonization history, and to examine whether the pattern of spatial genetic diversity has any adaptive significance. READ MORE

  2. 2. Maskinell ringbarkning - effektiv metod för att reducera uppslag av asp i föryngringen

    University essay from SLU/School for Forest Management

    Author : Jakob Rehult; [2019]
    Keywords : rotskott; högstubbe; knäckesjuka;

    Abstract : Pine twisting rust (Melampsora pinitorqua) often affects young Scots pine (Pinus sylvestris) plants and causes quality and growth reductions. The attacks have negative economic consequences in commercial forestry. The alternate host for Pine twisting rust is Aspen (Populus tremula). READ MORE

  3. 3. PLANT MIGRATION AT THE END OF THE WEICHSELIAN GLACIATION : Macrofossil evidence of early coniferous trees at two northern Swedish sites

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

    Author : Karan Zakrzewski-Sharma; [2019]
    Keywords : Scandinavia; Weichselian; plant migration; macrofossils; climate change;

    Abstract : Studies of vegetation history bring a new incentive to our understanding of plant survival and migration in arctic environments. For decades, environmental research was based on palynological data and these studies created a notion that tree species such as larch (Larix sibirica) and Scots pine (Pinus sylvestris) did not grow in northern Scandinavia at the end of Weichselian glaciation. READ MORE

  4. 4. Effects on Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) in the sapling stage from ungulate browsing

    University essay from Lunds universitet/Examensarbeten i biologi

    Author : Markus Velin; [2019]
    Keywords : Biology and Life Sciences;

    Abstract : Ecosystem services from forestry are highly valuable and may be limited by ungulate browsing. Thus, I investigated the impact and seasonality of browsing on Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) using seasonal exclosures. READ MORE

  5. 5. Lönsamhetsanalys av biomassafokuserad skötsel för contortatall : en ekonomisk analys av olika skötselstrategier

    University essay from SLU/Dept. of Forest Economics

    Author : Gunnar Boglind; Karin Gyllengahm; [2018]
    Keywords : Heureka; investeringsanalys; nettonuvärde; Pinus contorta; PlanVis; investment analysis; net present value; PlanWise;

    Abstract : Contortatallens areal uppgår idag till 650 000 hektar i Sverige efter en storskalig etablering av trädslaget under 1970-talet. Trädslaget har en större volymproduktion än den inhemska tallen (Pinus sylvestris) och tidigare studier av Arshadi et. READ MORE