Quality of spot mounding performed by continuously advancing mounders

Operating conditions affecting the quality of spot mounding by Bracke continuously advancing mounders were investigated on 66 regeneration areas (124 ha) in eastern Finland. The quality of mounds was classified as suitable (good or acceptable after additional compression) or unsuitable for planting....

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Main Authors: Saksa, Timo, Miina, Jari, Haatainen, Hilkka, Kärkkäinen, Kauko
Format: Article
Language:English
Published: Finnish Society of Forest Science 2018-01-01
Series:Silva Fennica
Online Access:https://www.silvafennica.fi/article/9933
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author Saksa, Timo
Miina, Jari
Haatainen, Hilkka
Kärkkäinen, Kauko
author_facet Saksa, Timo
Miina, Jari
Haatainen, Hilkka
Kärkkäinen, Kauko
author_sort Saksa, Timo
collection DOAJ
description Operating conditions affecting the quality of spot mounding by Bracke continuously advancing mounders were investigated on 66 regeneration areas (124 ha) in eastern Finland. The quality of mounds was classified as suitable (good or acceptable after additional compression) or unsuitable for planting. Models were constructed for the number of suitable planting spots obtained per hectare (good and acceptable mounds), the probability of successful mounding (â¥1600 planting spots ha) and the probability of creating a suitable mound as a function of terrain, site and soil characteristics, as well as slash conditions (removed, fresh or dry logging residues). The average number of mounds created was 1892â±â290 mounds ha, of which 1398â±â325 mounds ha (74%) were classified as suitable for planting. The quality of spot mounding was reduced by steep terrain, a thick humus layer and fresh logging residues. Stoniness and soil texture also affected the number of planting spots created. Mounding after logging residues had dried increased the number of planting spots by 191 spots ha compared with mounding in the presence of fresh residues. Removing residues did not significantly increase the number of planting spots compared with mounding amongst dry residues. A thick humus layer, very stony soil, steep slopes and valley terrain decreased the number of planting spots by 150â450 spots ha. The number and quality of mounds varied considerably according to the operating conditions, but with careful selection of timing and sites the quality obtained by a continuously advancing mounder can be improved.â1â1â1â1â1
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spelling doaj.art-ac301aa73ea2460fb0e179531add9d352022-12-21T23:18:00ZengFinnish Society of Forest ScienceSilva Fennica2242-40752018-01-0152210.14214/sf.9933Quality of spot mounding performed by continuously advancing moundersSaksa, TimoMiina, JariHaatainen, HilkkaKärkkäinen, KaukoOperating conditions affecting the quality of spot mounding by Bracke continuously advancing mounders were investigated on 66 regeneration areas (124 ha) in eastern Finland. The quality of mounds was classified as suitable (good or acceptable after additional compression) or unsuitable for planting. Models were constructed for the number of suitable planting spots obtained per hectare (good and acceptable mounds), the probability of successful mounding (â¥1600 planting spots ha) and the probability of creating a suitable mound as a function of terrain, site and soil characteristics, as well as slash conditions (removed, fresh or dry logging residues). The average number of mounds created was 1892â±â290 mounds ha, of which 1398â±â325 mounds ha (74%) were classified as suitable for planting. The quality of spot mounding was reduced by steep terrain, a thick humus layer and fresh logging residues. Stoniness and soil texture also affected the number of planting spots created. Mounding after logging residues had dried increased the number of planting spots by 191 spots ha compared with mounding in the presence of fresh residues. Removing residues did not significantly increase the number of planting spots compared with mounding amongst dry residues. A thick humus layer, very stony soil, steep slopes and valley terrain decreased the number of planting spots by 150â450 spots ha. The number and quality of mounds varied considerably according to the operating conditions, but with careful selection of timing and sites the quality obtained by a continuously advancing mounder can be improved.â1â1â1â1â1https://www.silvafennica.fi/article/9933
spellingShingle Saksa, Timo
Miina, Jari
Haatainen, Hilkka
Kärkkäinen, Kauko
Quality of spot mounding performed by continuously advancing mounders
Silva Fennica
title Quality of spot mounding performed by continuously advancing mounders
title_full Quality of spot mounding performed by continuously advancing mounders
title_fullStr Quality of spot mounding performed by continuously advancing mounders
title_full_unstemmed Quality of spot mounding performed by continuously advancing mounders
title_short Quality of spot mounding performed by continuously advancing mounders
title_sort quality of spot mounding performed by continuously advancing mounders
url https://www.silvafennica.fi/article/9933
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AT miinajari qualityofspotmoundingperformedbycontinuouslyadvancingmounders
AT haatainenhilkka qualityofspotmoundingperformedbycontinuouslyadvancingmounders
AT karkkainenkauko qualityofspotmoundingperformedbycontinuouslyadvancingmounders