Short-term effects of controlled conservation burning
Independent thesis Advanced level (degree of Master (Two Years)), 30 credits / 45 HE creditsStudent thesis
In this study, the immediate and short term (three months) effects of conservation burning have been investigated in coniferous forests in southeastern Sweden. Five tree species were investigated Picea abies (Norway spruce), Pinus sylvestris (Scots pine), Populus tremula (aspen), Betula pendula (silver birch) and Betula pubescens (downy birch), as well as ground vegetation of mosses, dwarf shrubs and ground lichens. Burning increased the proportion of live deciduous tree shoots from 51 % to 81 % and the live tree shoot size distribution of four tree species was significantly changed by fire. Fire affected the tree species differently. Three months after burning deciduous tree species exhibited strong sprouting, while P. sylvestris had established many seedlings, significantly increasing its share of the tree stand. P. abies lacked any visible positive response to burning and its number of live shoots decreased by 83 %. Mineral soil was exposed on only the moss vegetation and covered just 4 % of the studied plot area. The initial vegetation response to fire was negative, but significant dwarf shrub recovery was detected three months after burning.
Place, publisher, year, edition, pages
2014. , 83 p.
forest, forest fire, burning, nature conservation, conservation, Sweden, fenoscandia, Norway spruce, Scots pine, aspen, Picea abies, Pinus sylvestris, Populus tremula, Betula, vegetation, trees, tree shoots, follow-up, followup, boreal, boreal forest, ekology
skog, skogsbrand, brand, bränning, naturvård, bevarande, Sverige, fenoscandia, gran, tall, asp, Picea abies, Pinus sylvestris, Populus tremula, Betula, vegitation, träd, trädskott, trä skott, upfäljning, followup, boreal, boreal skog, ekologi
IdentifiersURN: urn:nbn:se:uu:diva-234965OAI: oai:DiVA.org:uu-234965DiVA: diva2:758535
Master Programme in Biology
Rydin, Håkan, Professor
Brunberg, Anna-Kristina, Associate Professor