Microbial necromass underpins long-term soil carbon stability and ecosystem carbon persistence in pine reforestations
文献类型：期刊论文
| 作者 | Wu, Shiyang2; Tie, Liehua1,2,6,7; Sardans, Jordi1; Xu, Xingliang5; Chen, Ji3; Hu, Peilei8; Deng, Lei9; Kong, Yixian7; Ouyang, Shengnan2; Huang, Congde4,7 |
| 刊名 | FOREST ECOSYSTEMS
 |
| 出版日期 | 2026-08-01 |
| 卷号 | 16页码:100457 |
| 关键词 | Ecosystem carbon storage Soil Organic Carbon (SOC) fractions Microbial necromass Stand age Pinus massoniana |
| ISSN号 | 2095-6355 |
| DOI | 10.1016/j.fecs.2026.100457 |
| 产权排序 | 5 |
| 文献子类 | Article |
| 英文摘要 | The long-term carbon (C) sequestration potential of plantations hinges on the dynamics and persistence of mature forest C sinks, yet how C storage and stability evolve with increasing forest age remains unclear. Here, we examined a chronosequence of mature Pinus massoniana reforestations (32-, 45-, and 60-year-old) to quantify ecosystem C storage across plant (tree, shrub, and herb), litter, and soil (0-100 cm) pools, and to assess soil organic carbon (SOC) stability via the ratio of mineral-associated organic carbon (MAOC) vs. particulate organic carbon (POC). Results showed that the total ecosystem C storage remained relatively constant across stand developmental stages, reflecting that plant C storage increased 53.4% from 32 to 45 years, then declined, while SOC storage decreased 53.9% from 32 to 45 years, then increased. In contrast, the 64.0% rise in the MAOC/POC ratio from 32 to 60 years may reflect a trend of enhanced SOC stability. Microbial necromass constituted 45.9%- 64.8% of SOC, with fungal necromass dominating bacterial necromass, especially in the subsoils (20-100 cm). Additionally, SOC, POC, and MAOC showed strong positive correlations with microbial necromass but exhibited weak associations with plant and litter C pools. The MAOC/POC ratio correlated strongly with the ratio of fungal necromass carbon (FNC) vs. bacterial necromass carbon (BNC). These results reveal that microbial-especially fungal-necromass may underpin the soil C stability and ecosystem C persistence of mature pine reforestations. Therefore, accurately predicting the long-term C sequestration of mature reforestation requires a mechanistic understanding that integrates both SOC stability and microbial necromass dynamics. |
| URL标识 | 查看原文 |
| WOS关键词 | ORGANIC-MATTER ; LITTER DECOMPOSITION ; FORESTS ; STOCKS ; NITROGEN ; SEQUESTRATION ; STABILIZATION ; DYNAMICS ; RELEASE ; BIOMASS |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:001721262200001 |
| 出版者 | KEAI PUBLISHING LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221168]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Tie, Liehua |
| 作者单位 | 1.Univ Autonoma Barcelona, CSIC, Unitat Ecol Global CREAF CEAB CSIC UAB, Edifici C, Barcelona 08193, Spain; 2.Guizhou Univ, Inst Forest Resources & Environm Guizhou, Coll Forestry, Guizhou Key Lab Forest Cultivat Plateau Mt, Guiyang 550025, Peoples R China; 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China; 4.Sichuan Mt Emei Forest Ecosyst Natl Observat & Res, Leshan 614200, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China; 6.CREAF, Barcelona 08193, Spain; 7.Sichuan Agr Univ, Coll Forestry, Forest Ecol & Conservat Upper Reaches Yangtze Rive, Chengdu 611130, Peoples R China; 8.Chinese Acad Sci, Inst Subtrop Agr, Changsha 410125, Peoples R China; 9.Northwest A&F Univ, State Key Lab Soil & Water Conservat & Desertifica, Yangling 712100, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wu, Shiyang,Tie, Liehua,Sardans, Jordi,et al. Microbial necromass underpins long-term soil carbon stability and ecosystem carbon persistence in pine reforestations[J]. FOREST ECOSYSTEMS,2026,16:100457. |
| APA | Wu, Shiyang.,Tie, Liehua.,Sardans, Jordi.,Xu, Xingliang.,Chen, Ji.,...&Ding, Guijie.(2026).Microbial necromass underpins long-term soil carbon stability and ecosystem carbon persistence in pine reforestations.FOREST ECOSYSTEMS,16,100457. |
| MLA | Wu, Shiyang,et al."Microbial necromass underpins long-term soil carbon stability and ecosystem carbon persistence in pine reforestations".FOREST ECOSYSTEMS 16(2026):100457. |
入库方式： OAI收割
来源：地理科学与资源研究所
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