Essays about: "Betula pubescens"

Showing result 6 - 10 of 32 essays containing the words Betula pubescens.

1. 6. Effects on natural seed regenerated Silver birch (Betula pendula Roth) and Downey birch (Betula pubescens Ehrh) by mechanical soil scarification and environmental factors : påverkan på naturligt fröföryngrad Glasbjörk (Betula pubescens Ehrh) och Hängbjörk (Betula pendula Roth) av mekanisk markberedning och omgivande faktorer

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

   Author : Oskar Karlsson; [2022]
   Keywords : natural birch regeneration; Birch seed regeneration; soil scarification;

   Abstract : The awareness of forest biodiversity as well as the demand for a higher proportion of deciduous tree species in Swedish forests increases. As such, focus is shifting towards the management of naturally seed regenerated Silver birch (Betula pendula Roth) and Downey birch (Betula pubescens Ehrh). READ MORE

3. 7. Reforestation in the far north : comparing effects of the native tree species Betula pubescens and the non-native Pinus contorta in Iceland

   University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

   Author : Elin Fries; [2017]
   Keywords : Iceland; non-native tree species; understory vegetation; P. contorta; B. pubescens;

   Abstract : The use of non-native tree species in forestry is both praised and questioned. Foresters have often promoted their use, mainly because of higher growth rates, resilience to pests and diseases and improved survival under harsh conditions. READ MORE

4. 8. 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

5. 9. Riparian vegetation responses to hydropeaking : Experimental study on germination and performance of plants along rivers regulated by hydropower dams in northern Sweden

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

   Author : Emelie Fredriksson; [2016]
   Keywords : Hydropeaking; riparian vegetation; germination; survival; performance; phytometer; restoration; mitigation;

   Abstract : Riparian vegetation is one of the most complex and abundant ecosystems in the world and it provides important ecosystem services. These services are affected by electricity production from hydropower dams. Hydropower accounts for 16% of the global electricity production and almost 50% in Sweden. READ MORE

6. 10. The survival of moth larvae feeding on different plant species in northern Fennoscandia

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Ulrika Belsing; [2015]
   Keywords : winter moth; ecosystem analysis; physical geography; autumn moth; northern Fennoscandia; outbreaks and sub-arctic environment; Earth and Environmental Sciences;

   Abstract : Northern Fennoscandia belongs to the sub-arctic environment and its forests are mostly composed of mountain birch trees (Betula pubescens ssp. czerepanovii). READ MORE