夜間温暖化が土壌有機炭素の損失を強め、微生物の炭素処理を再形成する
Nighttime warming intensifies soil organic carbon loss and reshapes microbial carbon processing (原題)
Panpan Zhao, Xiaowei Guo, Leiyi Chen, Shaolin Peng, Biying Liu, Yangting Huang, Hengjun Zhao, Wenqiang Fang, Ting Zhou
🤖 gxceed AI 要約
日本語
昼夜非対称温暖化が土壌有機炭素（SOC）とその画分に与える影響を、1.1年間の野外操作実験で定量評価。夜間温暖化は昼間温暖化より1.9倍大きなSOC損失を引き起こし、微生物の生活戦略をr戦略者へシフトさせ、炭素利用効率を高めることで微生物の炭素代謝を促進することを示した。炭素-気候フィードバックモデルの精度向上に重要な科学的基盤を提供する。
English
This study quantifies the effects of diurnal asymmetric warming on soil organic carbon (SOC) and its fractions through a 1.1-year field experiment. Nighttime warming alone caused 1.9 times greater SOC loss than daytime warming, by enhancing microbial carbon metabolism through shifts toward r-strategists and increased carbon use efficiency. The findings deepen mechanistic understanding of soil carbon cycling and provide a scientific basis for refining carbon-climate feedback models.
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
日本のGX文脈では、土壌炭素貯留はカーボンニュートラル戦略の一部として注目されるが、本論文は基礎科学であり、直接的な政策・実務への示唆は限定的。ただし、J-クレジットや農地土壌炭素貯留の評価に資する知見として、日本の農業・環境政策担当者には参考になる可能性がある。
In the global GX context
Globally, this paper contributes to understanding soil carbon dynamics under climate change, which is relevant for nature-based solutions and carbon accounting in land sectors. It provides mechanistic insights that could improve models used for climate mitigation assessments, though it does not directly address disclosure or transition finance frameworks.
👥 読者別の含意
🔬研究者:Provides mechanistic insights into soil carbon responses to asymmetric warming, useful for improving carbon-climate feedback models.
🏛政策担当者:May inform land-based mitigation policies and carbon accounting methodologies, though further translation is needed.
📄 Abstract（原文）
Abstract Current climate projections indicate warming trends with daily minimum temperature increasing more rapidly than daily maximum temperatures—termed diurnal asymmetric warming. While such warming profoundly affects terrestrial ecosystems, its implications for soil carbon cycling remain poorly understood. Here we quantify responses of soil organic carbon (SOC) and its fractions to diurnal asymmetric warming. After 1.1-Yr’s diurnal asymmetric warming, both particulate organic carbon (POC) and mineral-associated organic carbon (MAOC) decreased significantly. Specifically, nighttime warming alone induced a 1.9 times greater SOC loss than daytime warming. Mechanistically, continuous nighttime warming enhanced microbial carbon metabolism by shifting microbial life strategy (eg, toward r-strategists) and increasing carbon use efficiency. These findings deepen the mechanistic understanding of soil carbon cycling under climate warming and provide a critical scientific basis for refining predictive accuracy in carbon-climate feedback models.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1093/jpe/rtag189first seen 2026-08-20 04:45:55
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