Nitrogen addition and precipitation reduction regulate soil organic carbon storage with contrasting mechanisms in subtropical forests

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成果类型：

期刊论文

作者：

Zhao, Rudong;Liao, Chang;Wu, Yu;Tian, Qiuxiang;Jiang, Qinghu;...

通讯作者：

Liu, F

作者机构：

[Zhao, Xiaoxiang; Zhao, Rudong; Tian, Qiuxiang; Jiang, Qinghu; Liu, Feng] Chinese Acad Sci, CAS Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan, Peoples R China.

[Liao, Chang] Yunnan Univ, Sch Ecol & Environm Sci, Key Lab Soil Ecol & Hlth Univ Yunnan Prov, Kunming, Peoples R China.

[Wu, Yu] Hubei Int Sci & Technol Ctr Ecol Conservat & Manag, Yichang 443002, Peoples R China.

[Wu, Yu] Minist Educ, Engn Res Ctr Ecoenvironm Three Gorges Reservoir Re, Yichang 443002, Peoples R China.

[Wu, Yu] China Three Gorges Univ, Coll Biol & Pharmaceut, Yichang 443002, Peoples R China.

通讯机构：

[Liu, F ] C

Chinese Acad Sci, CAS Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan, Peoples R China.

语种：

英文

关键词：

Soil organic C stability;N fertilization;Global change;Particulate organic C;Mineral-associated organic C

期刊：

Plant and Soil

ISSN：

0032-079X

年：

2025

页码：

1-15

DOI：

10.1007/s11104-025-07719-6

基金类别：

This work was supported by the National Natural Science Foundation of China (31700462, 32171599) and the Hunan Provincial Natural Science Foundation of China (2024JJ7484).

机构署名：

本校为其他机构

院系归属：

生命科学与技术学院

摘要：

Background and AimsNitrogen (N) deposition and precipitation change profoundly impact forest carbon (C) cycling processes. However, how soil organic C (SOC) storage responds to their combined effects remains unclear.MethodsWe investigated the integrated effects of N addition and precipitation reduction (Pr) on SOC storage fractions, including particulate organic C (POC) and mineral-associated organic C (MAOC), through a 6-year field experiment using a complete two-factor randomized block design. In the experiment, N addition was set at 0, 30 and 60 kg N ha-1 yr-1, while Pr was implemented as r...

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Nitrogen addition and precipitation reduction regulate soil organic carbon storage with contrasting mechanisms in subtropical forests

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