13 years of biomass production from three poplar clones in a temperate short-rotation alley cropping agroforestry system

Langhof, Maren; Schmiedgen, Andrea

doi:10.1016/j.biombioe.2023.106853

Cited by 2 publications

(1 citation statement)

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“…In the EU27, about 358,000 ha are used for different forms of arable agroforestry, (Augère-Granier, 2020). Agroforestry systems based on poplar have been studied and investigated in several countries like United Kingdom (Willis et al, 1993), Germany (Langhof and Schmiedgen, 2023), Baltic Regions (Daugaviete et al, 2022), France (Van Lerberghe, Parizel, 2019), India (Chandra et al, 2011). In Italy the economic and environmental benefits of poplar-based agroforestry systems have been investigated mainly in the northern part of the country and in experimental case-studies.…”

Section: Introductionmentioning

confidence: 99%

EURAF 2024 Abstract book

2024

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Section: Introductionmentioning

confidence: 99%

EURAF 2024 Abstract book

2024

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Ecosystem Carbon and Nutrient Balances in Short-Rotation Hybrid Aspen Coppice Under Different Thinning Methods

Lutter,

Hepner,

Tullus

et al. 2024

Bioenerg. Res.

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Coppice plantations have gained a high interest for biofuel production and carbon uptake in short rotation cycles. There is a limited knowledge how such intensive coppice management affects soil fertility and nutrients supply to maintain carbon sink. We studied ecosystem carbon and nutrients balance and allocation during a 5-year period in hybrid aspen coppice under different thinning methods in hemiboreal Estonia. The benchmark value for the changes was defined before the coppice emerged after the clear-cut of the previously planted hybrid aspen plantation. The studied systematical thinning treatments were as follows: corridor thinning with removal of 67% of the trees (CT), cross-corridor thinning with removal of 89% of the trees (CCT), and unthinned (UT) coppice. The UT and CT treatments resulted in a positive carbon balance at the ecosystem level. In all treatments, a decrease of soil acidity, organic C, total N, K, Mg and Mn contents, and an increase of soil Cu and B contents were observed in the 0–20-cm deep layer. The concentrations of leaf N, P, and K were higher in UT than in the two thinning treatments, indicating that the aspens had not entirely recovered from the changed root to shoot ratio 2 years after thinning, whereas the leaf mass fraction of medium- and small-sized trees had already increased. Bioenergy harvest from the UT site in a 5-year rotation would cause 5–18% removal of NPK from the total ecosystem pool. Overall, hybrid aspen coppice showed positive ecosystem carbon balance after the first 5-year period; however, further monitoring of soil properties is needed as we found decrease of soil organic C and nutrients concentrations in short term. Graphical Abstract

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13 years of biomass production from three poplar clones in a temperate short-rotation alley cropping agroforestry system

Cited by 2 publications

References 30 publications

EURAF 2024 Abstract book

EURAF 2024 Abstract book

Ecosystem Carbon and Nutrient Balances in Short-Rotation Hybrid Aspen Coppice Under Different Thinning Methods

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