Cleaning Scots pine seedling stands with mechanical uprooters – a work quality comparison of two related devices
Commercial forests require early cleaning to ensure the unhindered and uniform growth of crop trees. In order to be cost effective, non-crop vegetation should be uprooted to prevent their recovery. Performing this work manually is a labour-intensive task but it can be done mechanically. We evaluated...
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ftdoajarticles:oai:doaj.org/article:b7f8d9a4ebb74f959d2098e9bf131bb0 2023-05-15T17:00:19+02:00 Cleaning Scots pine seedling stands with mechanical uprooters – a work quality comparison of two related devices Hallongren, Heidi Kankaanhuhta, Ville Kukkonen, Mikael 2016-01-01T00:00:00Z https://doi.org/10.14214/sf.1514 https://doaj.org/article/b7f8d9a4ebb74f959d2098e9bf131bb0 EN eng Finnish Society of Forest Science https://www.silvafennica.fi/article/1514 https://doaj.org/toc/2242-4075 2242-4075 doi:10.14214/sf.1514 https://doaj.org/article/b7f8d9a4ebb74f959d2098e9bf131bb0 Silva Fennica, Vol 50, Iss 3 (2016) Forestry SD1-669.5 article 2016 ftdoajarticles https://doi.org/10.14214/sf.1514 2022-12-30T23:48:56Z Commercial forests require early cleaning to ensure the unhindered and uniform growth of crop trees. In order to be cost effective, non-crop vegetation should be uprooted to prevent their recovery. Performing this work manually is a labour-intensive task but it can be done mechanically. We evaluated the efficiency of two uprooting devices in direct seeded Scots pine (L.) stands ca. 1 m tall. Productivity and quality of the uprooting work was investigated across eight stands and ca. 160 sample plots in northern Karelia, eastern Finland. Time consumption of the uprooters was analyzed through a linear regression model and the work quality through a multilevel multivariate model in terms of the number of individual Scots pine seedlings, processing units (i.e., a bunch of seedlings to be harvested in the future) and broadleaves. The productivity of the narrower modified device was significantly better in terms of time consumption than the wider original device. Work quality did not differ significantly between devices when stand characteristics, regeneration success and pre-existing damage were taken into account. Results indicate that mechanical uprooting devices may be further developed to a cost-effective alternative to motor-manual techniques for the early cleaning of direct seeded commercial Scots pine stands.Pinus sylvestris Article in Journal/Newspaper karelia* Directory of Open Access Journals: DOAJ Articles Silva Fennica 50 3 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Forestry SD1-669.5 |
spellingShingle |
Forestry SD1-669.5 Hallongren, Heidi Kankaanhuhta, Ville Kukkonen, Mikael Cleaning Scots pine seedling stands with mechanical uprooters – a work quality comparison of two related devices |
topic_facet |
Forestry SD1-669.5 |
description |
Commercial forests require early cleaning to ensure the unhindered and uniform growth of crop trees. In order to be cost effective, non-crop vegetation should be uprooted to prevent their recovery. Performing this work manually is a labour-intensive task but it can be done mechanically. We evaluated the efficiency of two uprooting devices in direct seeded Scots pine (L.) stands ca. 1 m tall. Productivity and quality of the uprooting work was investigated across eight stands and ca. 160 sample plots in northern Karelia, eastern Finland. Time consumption of the uprooters was analyzed through a linear regression model and the work quality through a multilevel multivariate model in terms of the number of individual Scots pine seedlings, processing units (i.e., a bunch of seedlings to be harvested in the future) and broadleaves. The productivity of the narrower modified device was significantly better in terms of time consumption than the wider original device. Work quality did not differ significantly between devices when stand characteristics, regeneration success and pre-existing damage were taken into account. Results indicate that mechanical uprooting devices may be further developed to a cost-effective alternative to motor-manual techniques for the early cleaning of direct seeded commercial Scots pine stands.Pinus sylvestris |
format |
Article in Journal/Newspaper |
author |
Hallongren, Heidi Kankaanhuhta, Ville Kukkonen, Mikael |
author_facet |
Hallongren, Heidi Kankaanhuhta, Ville Kukkonen, Mikael |
author_sort |
Hallongren, Heidi |
title |
Cleaning Scots pine seedling stands with mechanical uprooters – a work quality comparison of two related devices |
title_short |
Cleaning Scots pine seedling stands with mechanical uprooters – a work quality comparison of two related devices |
title_full |
Cleaning Scots pine seedling stands with mechanical uprooters – a work quality comparison of two related devices |
title_fullStr |
Cleaning Scots pine seedling stands with mechanical uprooters – a work quality comparison of two related devices |
title_full_unstemmed |
Cleaning Scots pine seedling stands with mechanical uprooters – a work quality comparison of two related devices |
title_sort |
cleaning scots pine seedling stands with mechanical uprooters – a work quality comparison of two related devices |
publisher |
Finnish Society of Forest Science |
publishDate |
2016 |
url |
https://doi.org/10.14214/sf.1514 https://doaj.org/article/b7f8d9a4ebb74f959d2098e9bf131bb0 |
genre |
karelia* |
genre_facet |
karelia* |
op_source |
Silva Fennica, Vol 50, Iss 3 (2016) |
op_relation |
https://www.silvafennica.fi/article/1514 https://doaj.org/toc/2242-4075 2242-4075 doi:10.14214/sf.1514 https://doaj.org/article/b7f8d9a4ebb74f959d2098e9bf131bb0 |
op_doi |
https://doi.org/10.14214/sf.1514 |
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Silva Fennica |
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50 |
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3 |
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1766052962466004992 |