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Do forest edges reduce timber productivity - Implications for retention forestry techniques

Citation

Baker, TP and Scott, RE and Neyland, MG and Musk, RA, Do forest edges reduce timber productivity - Implications for retention forestry techniques, Forest Ecology and Management, 448 pp. 208-217. ISSN 0378-1127 (2019) [Refereed Article]

Copyright Statement

2019 Elsevier B.V. All rights reserved.

DOI: doi:10.1016/j.foreco.2019.06.008

Abstract

Retention forestry techniques such as aggregated retention rely on proximity to an adjacent standing forest to increase the speed and success of biological community regeneration post-disturbance. However, increased competition near a standing forest may result in a decrease in the growth of targeted timber species which in turn may impact on timber yields. This study examined the impact that standing forest adjacent to regenerating forest has on the height of Eucalyptus spp. regeneration in the wet temperate forests of Tasmania, Australia. We used LiDAR data to test whether the height of the regenerating forest varied with proximity to the adjacent forest following harvesting and regeneration treatments. The distance response was examined across two silvicultural systems, aggregated retention (ARN) and clearfell, burn and sow (CBS), and across two broad age classes (17 years and 1124 years). Height growth was reduced within 23 m of a retained edge, with a maximum reduction of 12% occurring closest to the edge. The edge effect was similar across ages and between silvicultural systems, although ARN silviculture will suffer greater losses compared to CBS due to the greater percentage of area adjacent to a standing forest. Understanding productivity losses associated with increasing edges in harvesting systems, provides important information for forest managers balancing economic and biodiversity conservation requirements.

Item Details

Item Type:Refereed Article
Keywords:LiDAR, regeneration forest, tree height, edge proximity, edge effect
Research Division:Agricultural and Veterinary Sciences
Research Group:Forestry Sciences
Research Field:Forestry Biomass and Bioproducts
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Hardwood Plantations
UTAS Author:Baker, TP (Mr Thomas Baker)
UTAS Author:Neyland, MG (Dr Mark Neyland)
ID Code:133179
Year Published:2019
Deposited By:Plant Science
Deposited On:2019-06-17
Last Modified:2019-08-12
Downloads:0

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