Cost of turning forest residue bioenergy to carbon neutral

Anna Repo*, Anssi Ahtikoski, Jari Liski

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Abstract

Harvesting branches, unmerchantable tree tops and stumps for bioenergy reduces the carbon stock and the sink capacity of forest. We analyzed forest management changes that are financially viable for a forest owner to compensate for carbon loss resulting from the forest harvest residue extraction, and thus lead to truly carbon-neutral forest bioenergy. The management options studied included forest fertilization, elongated rotation periods, varying the type of forest residues extracted, and leaving high stumps. The costs of carbon loss compensation varied widely from 5 to 4000€ha-1 between the management options. The lowest costs resulted from harvesting quickly decomposing branches combined with low levels of fertilization. Harvesting all residues and applying intensive fertilization regimes or postponing final felling generated the highest costs. A requirement for fast carbon loss compensation increased the costs. The results indicated that changes in the forest management improve the carbon benefits of forest bioenergy, and some of these changes are inexpensive for the forest owner. The optimization results suggested that the longer time period was allowed for the carbon loss compensation, the fewer cost-effective silvicultural measures existed in the optimal combination of management regimes for the compensation.

Original languageEnglish
Pages (from-to)12-21
Number of pages10
JournalForest Policy and Economics
Volume57
DOIs
Publication statusPublished - 1 Aug 2015
MoE publication typeA1 Journal article-refereed

Keywords

  • Bioenergy policy
  • Carbon neutrality
  • Cost-effectiveness
  • Indirect emissions
  • Logging residues

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