The Sprouting Capacity of 8–21-Year-Old Poplars and Some Practical Implications

Johansson, T.; Hjelm, Birger

doi:10.3390/f3030528

Cited by 7 publications

(11 citation statements)

References 29 publications

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“…The harvested stand in our study was 19 years, but in most other studies not more than 5 years. Johansson and Hjelm (2012) investigated sprouting in older poplar stands containing a few clones and here the initial sprout number (after 1 year) was closer to our result, although somewhat lower. Differences in plant material, i.e.…”

Section: Discussionsupporting

confidence: 78%

“…It has been observed that sprouts originating from the upper part of the stump may be less stable due to breakage from the stump (Johansson and Hjelm 2012). It was also observed at the study site that sprouts could be unstable and break, and most of these sprouts were located in the upper part of the stump.…”

Section: Discussionmentioning

confidence: 77%

“…Johansson and Hjelm (2012) looked at sprouting capacity and found survival rates between 57 and 100 % among stumps in different sites in Sweden. However, their material was dominated by one clone.…”

Section: Discussionmentioning

confidence: 99%

“…The measurements took place one season after harvest. According to Ceulemans and Deraedt (1999) the expected survival rate of sprouts is less than 10 % in 3-4 years, or according to Johansson and Hjelm (2012) approximately 3 sprouts per stump will remain after 7 years.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, potential problems may not yet been detected. Problems such as unstable sprouts originating from the upper part of the stump (Johansson and Hjelm 2012) and differences in clonal performance have been recorded Laureysens et al 2003).…”

Section: Introductionmentioning

confidence: 99%

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Reliability of stump sprouting as a regeneration method for poplars: clonal behavior in survival, sprout straightness and growth

Carthy¹,

Ekö²,

Rytter³

2014

Silva Fenn.

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Reliability of stump sprouting as a regeneration method for poplars: clonal behavior in survival, sprout straightness and growth Mc Carthy R., Ekö P.M., Rytter L. (2014). Reliability of stump sprouting as a regeneration method for poplars: clonal behavior in survival, sprout straightness and growth. Silva Fennica vol. 48 no. 3 article id 1126. 9 p. Highlights• Clonal differences were found in stump sprout survival.• Clonal differences occurred in sprout straightness.• It is uncertain if the ability to produce a high number of stump sprouts is beneficial. AbstractThe interest in poplars (Populus spp.) has increased globally as a result of the current incentive to expand the use of biomass for energy. So far, knowledge about poplar stump sprouting is generally poor. The objective of this study was to investigate poplar stump sprouting as regeneration method in harvested plantations. A 19-year-old poplar clonal test, including 23 different clones, on former arable land was harvested in the winter. After one year, stumps were assessed for sprout survival, sprout straightness, number of sprouts, sprout height and basal diameter. Differences between clones were found for survival and sprout straightness. Clonal differences were also found in mean size of sprouts (basal diameter and height). However, no differences were found between clones when comparing size of the tallest sprout or number of sprouts produced on stumps. This study indicates that stump sprouts from various poplar clones differ in survival, sprout straightness and mean growth, which should be taken into account when planning for the next tree generation. The study needs to be complemented with other studies to better assess sprouting characteristics for different clones.

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Reliability of stump sprouting as a regeneration method for poplars: clonal behavior in survival, sprout straightness and growth

Carthy¹,

Ekö²,

Rytter³

2014

Silva Fenn.

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Biomass Production of the Poplar Clone OP42 During the Second Rotation Plantation–The Effects of Four Thinning Treatments

Svystun,

Böhlenius

2024

Bioenerg. Res.

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Poplar (Populus species and their hybrids) plantations can produce large amounts of biomass on agricultural land during the first rotation. However, there is limited knowledge regarding plantation re-establishment through re-sprouting (second rotation) after harvest, stand management options for such plantations, and biomass production during rotation length up to 20 years. In this study, we analysed biomass production responses to thinning treatments in an 18-year-old second rotation poplar plantation in Southern Sweden. The first rotation plantation was established with clone OP42 (Populus maximowiczii A. Henry × P. trichocarpa Torr. and Gray). The thinning experiment was conducted seven years after the first rotation harvest, comprising four treatments: unthinned – 6000 stems ha−1, light thinning – 3000 stems ha−1, medium thinning – 1100 stems ha−1, and heavy thinning – 550 stems ha−1. Eleven years after thinning, standing volume/biomass reached 484 m3 ha−1 (162 Mg DM ha−1) in the unthinned and medium thinning plots, 443 m3 ha−1 (148 Mg DM ha−1) in lightly and 338 m3 ha−1 (113 Mg DM ha−1) in heavily thinned plots. The mean annual increment was not different among the unthinned, light, and medium thinnings, 26 m3 ha−1 yr−1 (9 Mg DM ha−1 yr−1). The total production, including living, dead and removed trees, was highest following the medium thinning, 695 m3 ha−1 (233 Mg DM ha−1). Gradual self-thinning in the unthinned and lightly thinned plots was increased by a drought period. Overall, this study suggests that the second rotation of poplar plantations has high biomass production and provides an alternative to planting after harvest.

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Stump sprout dynamics of Quercus serrata Thunb. and Q. acutissima Carruth. four years after cutting in an abandoned coppice forest in western Japan

Dinh

Chihiro

Akaji

et al. 2019

Forest Ecology and Management

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The Sprouting Capacity of 8–21-Year-Old Poplars and Some Practical Implications

Cited by 7 publications

References 29 publications

Reliability of stump sprouting as a regeneration method for poplars: clonal behavior in survival, sprout straightness and growth

Reliability of stump sprouting as a regeneration method for poplars: clonal behavior in survival, sprout straightness and growth

Biomass Production of the Poplar Clone OP42 During the Second Rotation Plantation–The Effects of Four Thinning Treatments

Stump sprout dynamics of Quercus serrata Thunb. and Q. acutissima Carruth. four years after cutting in an abandoned coppice forest in western Japan

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