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Degerfors - Establishment of a new stand managed with precisely added nutrient load

PI: Fredrik Sjödin

Summary This trial aims to monitor effects of a specific and precisely added nutritive load in the establishment of a new generation plantlings. The trial also aims to repeat the same load yearly after establishment to see growth effects. The trial is set up as parcels of pine, spruce and birch both in mixtures and monoculture. Nutrition management, growth and survival of common species in monocultures and in mixed stands. Established 2020-06

birchmixed standsmonoculturesnutrition managementpineplant nutrientprecise added nutrientsspruce

Birch spruce replacement

PI: Emma Holmström

The purpose of the experiment is to have long term measurements of growth and stand development of the two species in monoculture vs mixture. The first treatments are initiated after regeneration on sites with planted Norway spruce and naturally regenerated birch where the two species are within the same average heights. First treatment is a pre-commercial thinning aiming for stand composition in four different levels : Every block is divided in four treatments with 100 % Norway spruce (NS), 100 % Birch, mixture 33 % NS and 66 % Birch, mixture 66 % NS and 33 % birch.

birchforest managementsilviculturespruce

Natural regeneration of birch in northern and mid Sweden

PI: Felicia Lidman

Study of birch germination and plant survival depending on soil moisture, temperature and time after soil preparation as well as possible interactions inbetween treatments. Layout: Natural regeneration and seeding of Birch in different combinations of soil preparation and soil moisture. 3 different soil preparations and 3 different soil moisture classes are monitored: - Dry, mesic moist. - Bare mineral soil, mixture with org.m. and control. Location: 108 plots outside Vindeln (Buberget and Pompej) and 108 plots outside Tierp (Tierp and Dragongate).

betula pendulabetula pubescensnatural regenerationbirch

Fredrika - Establishment of a new stand managed with precisely added nutrient load

PI: Fredrik Sjödin

This trial aims to monitor effects of a specific and precisely added nutritive load in the establishment of a new generation plantlings. The trial also aims to repeat the same load yearly after establishment to see growth effects. The trial is set up as parcels of pine, spruce and birch both in mixtures and monoculture. Nutrition management, growth and survival of common species in monocultures and in mixed stands. Established 2019-06-17

birchmixed standsmonoculturesnutrition managementpineplant nutrientprecise added nutrientsspruce

Sap flow measurements in birch trees

PI: Christina Hackmann

Adding to the already existent sensors, we applied heat dissipation sensors on birch trees this spring at site C2, Node 1 and Node 3.

sap flowhydrologytreesbirch

2221 - 2233 Natural forest trials

PI: Ulla Nylander

Data from 13 virgin forest stands situated within forest reserves in northern Sweden. Established by Professor Björn Elfving.

natural forestforest reservesvirgin forestpinesprucebirch

Skikkisjöberg

PI: Ulla Nylander

Shelterwood experiment established in a joint effort by SCA and the Dept of Silviculture, SLU. The experiment include various forms of cutting and shelterwood densities. Randomised blocks, 3 blocks with 5 parcells.

shelterwoodselective thinningsprucebirch