Santaniello, Francesca
(2017).
Impact of tree retention on wood production, biodiversity conservation and carbon stock changes in boreal pine forest.
Diss. (sammanfattning/summary)
Uppsala, Sweden :
Sveriges lantbruksuniv.,
Acta Universitatis Agriculturae Sueciae, 1652-6880
; 2017:63
ISBN 9789177600169
eISBN 9789177600176
[Doctoral thesis]
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Abstract
Tree retention at forest harvesting aims at promoting biodiversity by increasing structural diversity in managed forests. For this thesis, I have investigated the influence of tree retention on delivery of ecosystem services (wood production and carbon storage) and dead wood (as a proxy for biodiversity). Furthermore, habitat requirements of lichens dependent on dead wood were investigated. The investigation was conducted in 15 Scots pine forest stands with five tree retention levels, in which four categories of trees were retained at similar proportions: green living trees, girdled trees, high-cut stumps and cut trees left on the ground. Three control stands were left untouched. This thesis consists of three studies. In the first, we investigated how tree retention influences the amount and diversity of dead wood, logging productivity during harvest and both present and future income loss for the landowner (given as discounted opportunity costs). In the second, we simulated outputs of merchantable wood, dead wood and carbon stock during a 100-year forest rotation period at stand and landscape scales. At landscape scale, we simulated dead wood volumes and carbon stock under the constraint that landscape size and merchantable wood production were kept constant among scenarios, while retention level and area set aside for conservation varied. In the third study, we investigated how dead wood types (low stumps, snags, logs), wood hardness, wood age and occurrence of fire scars influence the occurrence of dead wood dependent lichens. We found that logging productivity and net incomes from harvest decreased with increasing retention levels, but also that volumes and diversity of dead wood and proportion of undamaged old dead wood increased. Furthermore, at the stand scale, increased retention level increased total carbon storage above and below ground. At the landscape scale, differences in carbon stock and dead wood input were generally small between the scenarios with varying retention levels and set-aside forest area. The lichen species composition differed significantly among the investigated substrates. Many species were highly associated with old and hard wood. Such wood is formed in fire-affected pine forests, but is rare in managed forest. The findings of this thesis could be used to guide future forest management and conservation.
Authors/Creators: | Santaniello, Francesca | ||||||||
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Title: | Impact of tree retention on wood production, biodiversity conservation and carbon stock changes in boreal pine forest | ||||||||
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Series Name/Journal: | Acta Universitatis Agriculturae Sueciae | ||||||||
Year of publishing : | 21 September 2017 | ||||||||
Depositing date: | 21 September 2017 | ||||||||
Number: | 2017:63 | ||||||||
Number of Pages: | 74 | ||||||||
Papers/manuscripts: |
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Place of Publication: | Uppsala, Sweden | ||||||||
Publisher: | Department of Ecology, Swedish University of Agricultural Sciences | ||||||||
ISBN for printed version: | 9789177600169 | ||||||||
ISBN for electronic version: | 9789177600176 | ||||||||
ISSN: | 1652-6880 | ||||||||
Language: | English | ||||||||
Publication Type: | Doctoral thesis | ||||||||
Full Text Status: | Public | ||||||||
Agris subject categories.: | K Forestry > K01 Forestry - General aspects K Forestry > K10 Forestry production K Forestry > K70 Forest injuries and protection | ||||||||
Subjects: | (A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology | ||||||||
Agrovoc terms: | biodiversity, boreal forests, deadwood, habitat improvement, site factors, carbon stock assessments, lichen | ||||||||
Keywords: | Tree retention, Dead wood, Pine, habitat requirement, lichen | ||||||||
URN:NBN: | urn:nbn:se:slu:epsilon-e-4375 | ||||||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4375 | ||||||||
ID Code: | 14574 | ||||||||
Faculty: | S - Faculty of Forest Sciences | ||||||||
Department: | (NL, NJ) > Dept. of Ecology (S) > Dept. of Ecology | ||||||||
External funders: | Skogforsk | ||||||||
Deposited By: | Francesca Santaniello | ||||||||
Deposited On: | 22 Sep 2017 06:35 | ||||||||
Metadata Last Modified: | 09 Sep 2020 14:17 |
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