近日，瑞典隆德大学Anders Ahlström团队报道了瑞典原生林的碳储量高于次生林。相关论文发表在2026年3月19日出版的《科学》杂志上。

北方森林在全球陆地碳储量和碳吸收中占据重要地位，但其正快速转变为人工次生林，对生态系统碳储量的影响程度尚未得到精确量化。

研究组通过瑞典原始林的大范围测绘与野外碳储量清查数据，采用多种方法证实：原始林在植被、枯死木、土壤及采伐木制品中的碳储量总和比人工次生林高出约72%（不同方法评估结果为70%至74%）。土壤既是最大的碳储库，也是两类森林碳储量差异最大的组分。原始林与人工次生林的总碳储量差异是此前估算值的2.7至8.0倍。这一结果对北方森林管理在过去及未来对大气二氧化碳浓度影响的既有认知提出了挑战。

附：英文原文

Title: Higher carbon storage in primary than secondary boreal forests in Sweden

Author: Didac Pascual, Gustaf Hugelius, Josep G. Canadell, Jennifer Harden, Robert B. Jackson, Katerina Georgiou, Anders Jonshagen, Johan Lindstrm, Karl Ljung, Emily Register, Camille Volle, Johanna Asch, Ulrika Ervander, Geerte Flthammar De Jong, Jia Sun, Anders Ahlstrm

Issue&Volume: 2026-03-19

Abstract: Boreal forests provide considerable global land carbon storage and uptake, but they are being rapidly transformed to managed secondary forests, with poorly quantified implications for ecosystem carbon storage. Here we present data from extensive mapping and field inventories of carbon storage in primary forests in Sweden and use multiple methods to show that primary forests store ~72% (70 to 74% across methods) more carbon than managed secondary forests in vegetation, deadwood, soils, and harvested wood products combined. Soils constitute both the largest carbon store and the largest difference between these forest types. The total carbon storage difference between primary and managed secondary forests is 2.7 to 8.0 times larger than previous estimates. Our results challenge estimated past and future contributions of boreal forest management to atmospheric carbon dioxide concentrations.

DOI: adz8554

Source: https://www.science.org/doi/10.1126/science.adz8554