Microsites before and after restoration in managed Picea abies stands in southern Finland: effects of fire and partial cutting with dead wood creation

Saara Lilja-Rothsten, Michelle de Chantal, Chris Peterson, Timo Kuuluvainen, Ilkka Vanha-Majamaa, Pasi Puttonen

Research output: Contribution to journalArticleScientificpeer-review

Abstract

"Different types of microsites, e.g. CWD (coarse woody debris), mounds, and uprooting pits, are important for tree regeneration and biodiversity. However, microsite diversity is greatly reduced in managed stands. We studied how restoration treatments changed microsite distribution in mature managed Picea abies stands. Four cutting treatments were used: uncut, low-CWD (5 m(3) ha(-1) of down retention trees, DRT, and 50 m(3) ha(-1) of standing retention trees), intermediate-CWD (as previous but leaving 30 m(3) ha(-1) of DRT), and high-CWD (as previous but with 60 m(3) ha(-1) of DRT). Timber harvested from stands ranged from 108-168 m(3) ha(-1). Half of the stands were burned, and half remained unburned. Sampling was stratified into upland and paludified biotopes within each stand. The pre-treatment microsite distributions were dominated by level ground in both biotopes; mounds and microsites on or next to CWD or a stump were slightly more abundant in the paludified than in the upland biotopes. Microsites were more diverse after cutting, with and without fire. The cutting treatment increased the relative abundances of microsites on or next to CWD. Fire consumed small diameter dead wood and flattened mounds. Microsites were more diverse in paludified than in upland biotopes. The results demonstrate that microsite diversity can rapidly be restored to structurally impoverished managed Picea stands despite a large portion of wood volume being harvested."
Original languageEnglish
JournalSilva Fennica
Volume42
Issue number2
Pages (from-to)165-176
Number of pages12
ISSN0037-5330
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 411 Agriculture and forestry
  • biodiversiteetti
  • häiriöt
  • dynamiikka
  • hakkuualat
  • boreaaliset metsät
  • talousmetsät
  • metsänuudistus
  • biodiversity
  • boreal forests
  • production forests
  • regeneration

Cite this