The effects of slash and stump removal on productivity and quality of forest regeneration operations—preliminary results

Saarinen, Veli-Matti

doi:10.1016/j.biombioe.2005.07.014

Cited by 61 publications

(70 citation statements)

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“…In central Sweden, stump and slash removal resulted in up to 82% surplus of self-regenerated trees after 13-17 years (Kardell 2007). Results from Finland indicate that stump and slash removal could improve productivity and quality of subsequent re-planting of harvested forest sites (Saarinen 2006).…”

Section: Seedling Survivalmentioning

confidence: 99%

“…Since 1970s till present, in whole-tree harvesting trials in Scandinavia stumps are removed either by excavator (stump rake) or using special stump harvester Pallari KH-160 (Kardell 1992, von Hofsten 2006, Saarinen 2006, Egnell et al 2007). The harvester is developed by Tervolan Konepaja Oy, and is specially designed for mounting on hydraulic excavators to break up, loosen and take apart all kinds of stumps and roots.…”

Section: Equipment and Techniquesmentioning

confidence: 99%

“…Currently, Pallari KH-160 harvester is intended for continuous use in large-scale stump harvesting for biofuel in Finland and Sweden. Moreover, in Finland a conventional stump rake is being tested, that combines stump extraction and soil scarification (mounding), thus creating more favourable conditions for subsequent stand regeneration (von Hofsten 2006, Saarinen 2006, Egnell et al 2007). Sturrock (2000) pointed out that the removal of infested stumps and roots can result in incremental growth benefits equivalent to or greater than those derived from planting, site preparation, genetic improvement, or vegetation management, and that the successful treatment may restore stands to near optimal productivity in one treatment (see also Tables 1, 2 and 3).…”

Section: Equipment and Techniquesmentioning

confidence: 99%

“…For example, simultaneous reduction of competing vegetation is accomplished, providing improved conditions for subsequent re-forestation (Hakkila 1974, Saarinen 2006; Table 2; see Section 6 Seedling Survival). By removal of Heterobasion-infected stumps and roots, the substrate for its sporocarp formation is excluded thus restricting the potential for airborne infections (see Section 4 Thoroughness of the Removal).…”

Section: Economical Aspectsmentioning

confidence: 99%

“…sawdust, bark and black liquor) and logging residues (e.g. branches, tops and damaged wood) were increasingly being used for energy production (Saarinen 2006, Egnell et al 2007. As the growing market is expected to consume even more biomass in the future, during the last years large interest has been addressed to stumps, which at harvested forest sites offer biomass resource equally large or larger than the logging residues (von Hofsten 2006, Egnell et al 2007).…”

Section: Introductionmentioning

confidence: 99%

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Stump removal to control root rot in forest stands. A literature study

Vasaitis

Stenlid

Thomsen³

et al. 2008

Silva Fenn.

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Tree stumps are expected to be increasingly used for energy production in Fennoscandia, thus environmental consequences of stump removal from forest land must be assessed. Aim of this work was to compile available data on the efficacy of stump removal in eradication of root rot fungi (Heterobasidion, Armillaria, and Phellinus), and to review its potential impacts on establishment and productivity of next forest generation. Site disturbance and some technical and economical aspects are discussed, and needs for future research outlined in northern European context. The review demonstrates that stump removal from clear-felled forest areas in most cases results in, a) reduction of root rot in the next forest generation, b) improved seedling establishment, and c) increased tree growth and stand productivity. Observed disturbances caused to a site by stumping operations are normally acceptable. The available data strongly suggests that possibly many (if achievable, all) rot-containing stumps must be removed during harvesting of stumps. Provided equal availability, the priority should be given for stump removal from root rot-infested forest areas, instead of healthy ones. As most studies were done in North America and Britain, several questions must be yet answered under Fennoscandian conditions: a) if and to which extent the conventional stump removal for biofuel on clear-felled sites could reduce the occurrence of Heterobasidion and Armillaria in the next forest generation, b) what impact is it likely to have on survival of replanted tree seedlings, and c) what consequences will there be for growth and productivity of next forest generation.

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Section: Seedling Survivalmentioning

confidence: 99%

Section: Equipment and Techniquesmentioning

confidence: 99%

Section: Equipment and Techniquesmentioning

confidence: 99%

Section: Economical Aspectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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