Stump harvesting for bioenergy – methods and environmental effects

Persson, Tryggve

doi:10.1080/02827581.2017.1289714

Cited by 12 publications

(4 citation statements)

References 10 publications

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“…for root rot control [125,126]. The environmental impacts of stump lifting or harvesting has been well researched and reviewed [120,[127][128][129][130][131] and specific stumping guidelines for bioenergy have been developed in Sweden, Finland, Lithuania and the UK [126,132]. Guidance for stump uprooting to control root rot has also been produced in British Columbia [133], where up-rooted stumps are currently left on-site; revision to provide guidance for their removal and use as bioenergy feedstock may be possible [126].…”

Section: Underlying Science and Operational Experiencementioning

confidence: 99%

Sustainable forest biomass: a review of current residue harvesting guidelines

et al. 2021

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Forest biomass harvesting guidelines help ensure the ecological sustainability of forest residue harvesting for bioenergy and bioproducts, and hence contribute to social license for a growing bioeconomy. Guidelines, typically voluntary, provide a means to achieve outcomes often required by legislation, and must address needs related to local or regional context, jurisdictional compatibility with regulations, issues of temporal and spatial scale, and incorporation of appropriate scientific information. Given this complexity, comprehensive reviews of existing guidelines can aid in development of new guidelines or revision of existing ones. We reviewed 32 guidelines covering 43 jurisdictions in the USA, Canada, Europe and East Asia to expand upon information evaluated and recommendations provided in previous guideline reviews, and compiled a searchable spreadsheet of direct quotations from documents as a foundation for our review. Guidelines were considered in the context of sustainable forest management (SFM), focusing on guideline scope and objectives, environmental sustainability concerns (soils, site productivity, biodiversity, water and carbon) and social concerns (visual aesthetics, recreation, and preservation of cultural, historical and archaeological sites). We discuss the role of guidelines within the context of other governance mechanisms such as SFM policies, trade regulations and non-state market-driven (NSMD) standards, including certification systems. The review provides a comprehensive resource for those developing guidelines, or defining sustainability standards for market access or compliance with public regulations, and/or concerned about the sustainability of forest biomass harvesting. We recommend that those developing or updating guidelines consider (i) the importance of well-defined and understood terminology, consistent where possible with guidelines in other jurisdictions or regions; (ii) guidance based on locally relevant research, and periodically updated to incorporate current knowledge and operational experience; (iii) use of indicators of sensitive soils, sites, and stands which are relevant to ecological processes and can be applied operationally; and (iv) incorporation of climate impacts, long-term soil carbon storage, and general carbon balance considerations when defining sustainable forest biomass availability. Successful implementation of guidelines depends both on the relevance of the information and on the process used to develop and communicate it; hence, appropriate stakeholders should be involved early in guideline development.

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Section: Underlying Science and Operational Experiencementioning

confidence: 99%

Sustainable forest biomass: a review of current residue harvesting guidelines

et al. 2021

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“…In the upper part of the support arm (2), there is a hollow cover (9) of the head (1). In the cover (9) front, there are holes (11) for the placement of a splitting arm ( 4), and at the back, there are holes (15) for the placement of a cylinder (7) controlling the splitting arm movement. The splitting arm ( 4) is placed in the holes (11) in a swinging arrangement.…”

Section: Grubbing Head Characteristicsmentioning

confidence: 99%

“…Stumps have been grubbed for energy purposes in Scandinavian countries since the 1970s [12], namely, those of Norway spruce (Picea abies) [10]. In the last ten years, stump grubbing has become more topical in the forest practice of Nordic and Baltic countries [13][14][15][16]. Although stump grubbing for energy purposes is currently an uncommon practice, it can reduce the costs of preparing clear-cut areas for the subsequent regeneration of forest stands [17].…”

Section: Introductionmentioning

confidence: 99%

A Unique Grubbing Head Prototype for Environmentally Friendly and Sustainable Stump Removal

Staněk

Zvěřina

Ulrich

et al. 2022

Forests

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Stumps left behind after the felling of trees represent an important source of renewable energy that could be used for fuel mixtures as a sustainable solution. The subject of this research was to determine the influence of tree species, stump diameter size, and subsoil on the time required for stump processing. Evaluated parameters included the mean time for one stump’s processing; the stump processing time based on the stump diameter; different soil types and tree species; and the tree species type (coniferous, broadleaved). The research was conducted in the territory of the Czech Republic in 2020/2021. There were 287 stumps and 6 tree species in total. The stumps were uprooted using a new prototype of grubbing head, developed at Mendel University in Brno, attached as an adapter on the boom of a JCB JS 220 LC excavator with a tracked undercarriage and was controlled remotely from an excavator cab. Research results confirmed that the processing time of one stump depends on the stump diameter (GLM), and the time needed for the processing of one stump increased with an increase in stump diameter in all experimental sites. An equation was suggested to predict the time needed to work on one stump.

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“…The first publications on this issue are found circa year 1831 [2]. During the 1980-ies there was an attempt to ensure even a paper making plant with stump-wood as raw material, but it had interrupted after ten years.…”

Section: Introductionmentioning

confidence: 99%

Technology and energy balance in stump harvesting with MCR500

Zimelis

Sisenis

Sarmulis

et al. 2018

Engineering for Rural Development

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Abstract. With the increasing demand for renewable energy in the domestic market, additional attention is paid to the use of stump-wood in energy supply. The stump harvesting technology is not substantiated sufficiently so that the end users can use this unpredictable raw material to generate heat and power. Service providing logging companies need to know the specific requirements to equipment and the characteristics of stump harvesting technologies in order to assess the possibility of acquiring this natural resource. The stump harvesting should be planned along with the regenerative felling, because the layout of the timber forwarding roads and the characteristic of the logging residues layer on the road surface are important. In its turn, when planning the upper timber yard, it is necessary to take into account the meteorological data, the prevailing wind direction and water streams. The aim of the study is to find out the total energy balance during the stump extraction with the MCR500 bucket. Working time, output volumes and productivity indicators are derived from the project "Development and testing of a prototype of multifunctional equipment for stump-wood production and preparation of the soil mounds" (2DP/2.1.1.1.0/10/APIA/VIAA/174) results and from the results of the joint stock company "Latvia state forest" project implemented in 2008. The most energy-consuming process is comminution of biomass, therefore it is common, for instance, in Finland that electricity-operated equipment located near the customer is used to carry out this work. More efficient use of forest resources by stump extraction and further utilization in heat and power production can increase biomass deliveries for energy applications by 500 thousand tons of dry matter of currently unused coniferous stump biomass annually.

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Stump harvesting for bioenergy – methods and environmental effects

Cited by 12 publications

References 10 publications

Sustainable forest biomass: a review of current residue harvesting guidelines

Sustainable forest biomass: a review of current residue harvesting guidelines

A Unique Grubbing Head Prototype for Environmentally Friendly and Sustainable Stump Removal

Technology and energy balance in stump harvesting with MCR500

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