Next Article in Journal
Belowground Competition Directs Spatial Patterns of Seedling Growth in Boreal Pine Forests in Fennoscandia
Previous Article in Journal
Genetic Resistance to Fusiform Rust in Southern Pines and White Pine Blister Rust in White Pines—A Contrasting Tale of Two Rust Pathosystems—Current Status and Future Prospects
Open AccessArticle

Systems Analysis of Ten Supply Chains for Whole Tree Chips

Department of Forest Technology, Norwegian Forest and Landscape Institute, P.O. Box 115, 1431 Ås, Norway
Author to whom correspondence should be addressed.
Forests 2014, 5(9), 2084-2105;
Received: 24 June 2014 / Revised: 8 August 2014 / Accepted: 25 August 2014 / Published: 1 September 2014
Whole trees from energy thinnings constitute one of many forest fuel sources, yet ten widely applied supply chains could be defined for this feedstock alone. These ten represent only a subset of the real possibilities, as felling method was held constant and only a single market (combustion of whole tree chips) was considered. Stages included in-field, roadside landing, terminal, and conversion plant, and biomass states at each of these included loose whole trees, bundled whole trees or chipped material. Assumptions on prices, performances, and conversion rates were based on field trials and published literature in similar boreal forest conditions. The economic outcome was calculated on the basis of production, handling, treatment and storage costs and losses. Outcomes were tested for robustness on a range of object volumes (50–350 m3solid), extraction distances (50–550 m) and transport distances (10–70 km) using simulation across a set of discrete values. Transport was calculated for both a standard 19.5 m and an extended 24 m timber truck. Results showed that the most expensive chain (roadside bundling, roadside storage, terminal storage and delivery using a 19.5 m timber truck) at 158 € td−1 was 23% more costly than the cheapest chain (roadside chipping and direct transport to conversion plant with container truck), at 128 € td−1. Outcomes vary at specific object volumes and transport distances, highlighting the need to verify assumptions, although standard deviations around mean supply costs for each chain were small (6%–9%). Losses at all stages were modelled, with the largest losses (23 € td−1) occurring in the chains including bundles. The study makes all methods and assumptions explicit and can assist the procurement manager in understanding the mechanisms at work. View Full-Text
Keywords: bioenergy; small tree harvesting; feedstocks; modelling bioenergy; small tree harvesting; feedstocks; modelling
Show Figures

Figure 1

MDPI and ACS Style

Belbo, H.; Talbot, B. Systems Analysis of Ten Supply Chains for Whole Tree Chips. Forests 2014, 5, 2084-2105.

AMA Style

Belbo H, Talbot B. Systems Analysis of Ten Supply Chains for Whole Tree Chips. Forests. 2014; 5(9):2084-2105.

Chicago/Turabian Style

Belbo, Helmer; Talbot, Bruce. 2014. "Systems Analysis of Ten Supply Chains for Whole Tree Chips" Forests 5, no. 9: 2084-2105.

Find Other Styles

Article Access Map by Country/Region

Only visits after 24 November 2015 are recorded.
Search more from Scilit
Back to TopTop