短伐期林業におけるバイオマス収量と気候便益の drivers：ドイツ80年の研究の半定量的レビュー
Drivers of Biomass Yield and Climate Benefits in Short Rotation Forestry: A Semi-Quantitative Review of 80 Years of German Research (原題)
Leonardo Amthauer Gallardo, Andrea Biertümpfel, Andreas Gurgel, Kerstin Jäkel
🤖 gxceed AI 要約
日本語
ドイツの1940年代以降の短伐期林業（SRF）研究を集約したレビュー。2〜3年周期のコピス（萌芽更新）が最も高いバイオマス収量（9.8 odt/ha/年）を示し、ポプラが最高収量。ポプラ・ヤナギのコピスは20年以上生産性を維持し、炭素隔離量は最大5.1 t C/ha/年で若齢林の6倍に達する。再生可能エネルギーと炭素緩和の成熟した選択肢として、限られた政策的注目の再評価を促す。
English
A review of 80 years of German short rotation forestry (SRF) research. Two- to three-year coppice cycles gave the highest biomass yields (9.8 odt/ha/yr), with poplar leading. Poplar and willow coppice remain productive for over 20 years, sequestering up to 5.1 t C/ha/yr—six times more than young forests. The authors argue for renewed political attention to SRF as a mature option for renewable energy and carbon mitigation.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では耕作放棄地や休耕地を活用した木質バイオマス生産の可能性が議論されており、短伐期林業の収量・炭素隔離データは地域エネルギー計画や農林業政策に示唆を与える。ただし、日本の気候・土壌条件への適用には注意が必要。
In the global GX context
While focused on Germany, this review provides empirical benchmarks for biomass yield and carbon sequestration in short rotation forestry that can inform global bioenergy policy and carbon accounting methodologies (e.g., for LULUCF under UNFCCC). It highlights a mature mitigation option often overlooked in climate policy discussions.
👥 読者別の含意
🔬研究者:短伐期林業の収量・炭素隔離に関する長期データのメタ分析手法と、管理要因の定量的関係を学べる。
🏢実務担当者:バイオマス発電や熱利用を検討する企業にとって、樹種・伐期選択による収量と炭素クレジット創出の可能性を評価する基礎情報となる。
🏛政策担当者:再生可能エネルギー政策や炭素吸収源対策において、短伐期林業への支援拡大を検討する根拠を提供する。
📄 Abstract（原文）
Published version: BioEnergy Research (2026). DOI: https://doi.org/10.1007/s12155-026-10978-5 The underlying data for this review are available at: https://doi.org/10.5281/zenodo.19019862 This review compiles experimental and empirical evidence from Germany since the 1940s, revealing relationships between management drivers and yield. Two- to three-year cycles produced the highest biomass yields, outperforming longer rotations of 7–10 and ~20 years (9.8 vs. 6.1 odt ha⁻¹ a⁻¹), likely due to higher shoot density in coppiced systems. Poplar achieved the highest yields, though willow nearly matched in shorter cycles. In four- to six-year cycles, poplar yields (9.5 odt ha⁻¹ a⁻¹) were almost three times those of birch and alder, and about 66% higher than willow. Black locust reached yields slightly lower than poplar in ten-year cycles. Poplar and willow coppice systems remain productive for over 20 years, with mean annual increment rising until root age 21 and current annual increment peaking at 15–18 years. Recent models enable more precise site and yield assessment, with plant-available water-holding capacity and precipitation emerging as key factors. In newly established systems, poplar single-stem plantations can sequester up to 2.9 t C ha⁻¹ a⁻¹, about 2.5 times more than young forests, while coppiced systems can reach 5.1 t C ha⁻¹ a⁻¹, up to six times more, making them valuable for climate mitigation when biomass enters long-lived uses. The strength of coppice systems lies in their contribution to renewable energy and as a source of raw material. With decades of trials, short rotation systems are proven mature options for biomass production and carbon mitigation. These findings underscore the need to re-evaluate the limited political attention given to short rotation systems.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.5281/zenodo.22412450first seen 2026-09-26 04:36:37
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