Kurzumtriebsplantagen – Stand des Wissens

Knust, Christine

doi:10.1002/9783527627462.ch1

Cited by 5 publications

(10 citation statements)

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“…Wood production contributes to natural decarbonisation and subsequent climate change mitigation (Canadell and Raupach 2008;Knust 2009;Parikka 2004). As a renewable source of energy, wood has great potential as a fossil fuel substitute (Demirbaş 2001).…”

Section: Introductionmentioning

confidence: 99%

“…However, intensifying wood production in SRC on agricultural lands would alleviate pressure on forests and reduce the impact of extensive agricultural management on biodiversity (Butler Manning et al 2015;Harris et al 2017;Schmidt and Glaser 2009). Short rotation coppices (from here on referred to as SRC) are typically high-density, single-species plantings of fast-growing trees with rotation lengths of less than 20 years (Knust 2009;Stanturf and Oosten 2014). Poplar hybrids (Populus spp.)…”

Section: Introductionmentioning

confidence: 99%

“…Instead, it commonly occurs in areas with 480-800 mm rainfall per year (Vítková et al 2017). In central Europe, Robinia pseudoacacia, is preferably planted in regions with poor precipitation and low nutrient availability (Knust 2009;Rédei 2013). R. pseudoacacia is not only less demanding regarding water and nutrients than Populus sp., but also, as a legume tree species, has the ability to fix nitrogen and enhance soil fertility (Binkley 1992;Kanzler et al 2020;Knust 2009;Nicolescu et al 2018;Veste et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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From facilitation to competition: the effect of black locust (Robinia pseudoacacia L.) on the growth performance of four poplar-hybrids (Populus spp.) in mixed short rotation coppice

et al. 2020

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Short rotation coppices play an important role in providing biomass for energetic use. Mixing fast-growing tree species in short rotation coppices may show complementarity effects and increased yield. The aim of this study was to analyze the effect of species interaction in mixed short rotation coppices with fast-growing Populus spp.-hybrids and the N-fixing Robinia pseudoacacia. Four different Populus-hybrids (AF2, Fritzi Pauley, Hybride 275 and Max 1), planted alternately in pure and mixed stands with R. pseudoacacia were used for the analysis. Height and root collar diameter were measured once a year, over a period of four years (2014–2017). Additionally, in the third year, aboveground competition was surveyed with a terrestrial laser scanner and root biomass was analyzed to assess belowground competition. Soil nitrogen was also determined in order to verify enrichment properties of mixtures compared to pure stands. Populus-hybrids’ stem volume showed no significant differences between stand types in the first year after planting. In the second and third year, however, two Populus-hybrids (AF2 and Max 1) had a higher stem volume increment of up to 3.8 times than stem volume increment in pure stands. This may be related to the fact that soil nitrogen was 39% higher in the mixtures than in pure stands. However, in the 4th year after stand establishment, R. pseudoacacia’s crowns were so massive and broad, that this species was far more competitive than the Populus-hybrids. With the exception of P. ‘Fritzi Pauley’, which showed no significant differences between stand types, growth rates reversed for the other three Populus-hybrids. AF2, Max 1 and Hybride 275 showed up to 75% lower stem volume increment in mixtures compared to pure stands. We assume that, in spite of the initially observed facilitation between the species, the competition exerted by R. pseudoacacia started dominating after 4 years and began to surpass the benefits of facilitation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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From facilitation to competition: the effect of black locust (Robinia pseudoacacia L.) on the growth performance of four poplar-hybrids (Populus spp.) in mixed short rotation coppice

et al. 2020

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“…SRC systems in Germany consist of fast growing tree species, particularly poplar (Populus species) and willow (Salix species), but in Brandenburg robinia (Robinia pseudoacacia) is also used due to drought conditions (Knust, 2009;Grünewald et al, 2009;Quinkenstein et al, 2011;Mantovani et al, 2014). Trees in SRC stand either compactly together or spaced in rows -so-called "alley cropping systems" -alternating with rows of other agricultural uses (e.g.…”

Section: Src and Its Characteristicsmentioning

confidence: 99%

Insights into a black box! Comparison of organizational modes and their monetary implications for the producers of short rotation coppice (SRC) in Brandenburg/Germany

2016

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“…The urgency to take measures for mitigating climate change makes substitution for fossil fuels an increasingly important issue to address. Wood is a renewable source of energy with great potential to tackle this challenge (Canadell & Raupach, 2008; Demirbaş, 2001; Knust, 2009; Parikka, 2004). Besides forest stands, short rotation coppices (from here on referred to as SRC) on arable land are important sources of woody biomass (Butler Manning et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Biomass production in mixed short rotation coppice with poplar‐hybrids (Populus spp.) and black locust (Robinia pseudoacacia L.)

2021

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Short rotation coppice plays an important role for biomass production. Mixing fast‐growing tree species in short rotation coppices may lead to overyielding if the species have complementarity traits. The goal of this study is to analyze biomass yield of eight different poplar hybrids and black locust in mixed short rotation coppice after a rotation of 5 years. Pure and mixed stands were established at two sites of contrasting fertility as a low‐input system. After collecting a sample of trees for the data set, we fitted allometric equations to estimate the overall biomass of the stands. All poplar genotypes showed lower performance in mixtures with black locust, whereas the latter profited from the mixture. In contrast to our expectations, poplars had no advantages from black locust's nitrogen enrichment of the soil. Instead, the dominance and competitiveness of black locust drove to poorer performance of all eight poplar genotypes across both sites. Mixing fast‐growing tree species in short rotation coppices may lead to overyielding if the species have complementarity traits. The goal of this study is to analyze biomass yield of eight different poplar hybrids and black locust in mixed short rotation coppice after a rotation of 5 years. While black locusts profited from mixed cropping, poplars had no advantaged performance. The dominance and competitiveness of black locust drove to poorer performance of all eight poplar genotypes.

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Kurzumtriebsplantagen – Stand des Wissens

Cited by 5 publications

References 5 publications

From facilitation to competition: the effect of black locust (Robinia pseudoacacia L.) on the growth performance of four poplar-hybrids (Populus spp.) in mixed short rotation coppice

From facilitation to competition: the effect of black locust (Robinia pseudoacacia L.) on the growth performance of four poplar-hybrids (Populus spp.) in mixed short rotation coppice

Insights into a black box! Comparison of organizational modes and their monetary implications for the producers of short rotation coppice (SRC) in Brandenburg/Germany

Biomass production in mixed short rotation coppice with poplar‐hybrids (Populus spp.) and black locust (Robinia pseudoacacia L.)

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