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| DOI | 10.1016/j.scitotenv.2024.171596 |
| Enhanced home-field advantage in deep soil organic carbon decomposition: Insights from soil transplantation in subtropical forests | |
| 发表日期 | 2024 |
| ISSN | 0048-9697 |
| EISSN | 1879-1026 |
| 起始页码 | 924 |
| 卷号 | 924 |
| 英文摘要 | Climate change affects microbial community physiological strategies and thus regulates global soil organic carbon (SOC) decomposition. However, SOC decomposition by microorganisms, depending on home-field advantage (HFA, indicating a faster decomposition rate in 'Home' than 'Away' conditions) or environmental advantage (EA, indicating a faster decomposition rate in warmer-wetter environments than in colder-drier environments) remains unknown. Here, a soil transplantation experiment was conducted between warmer-wetter and colder-drier evergreen broadleaved forests in subtropical China. Specifically, soil samples were collected along a 60 cm soil profile, including 0-15, 15-30, 30-45, and 45-60 cm layers after one year of transplantation. SOC fractions, soil chemical properties, and microbial communities were evaluated to assess where there was an HFA of EA in SOC decomposition, along with an exploration of internal linkages. Significant HFAs were observed, particularly in the deep soils (30-60 cm) (P < 0.05), despite the lack of a significant EA along a soil profile, which was attributed to environmental changes affecting soil fungal communities and constraining SOC decomposition in 'Away' conditions. The soils transplanted from warmer-wetter to colder-drier environments changed the proportions of Mortiereltomycota or Basidiomycota fungal taxa in deep soils. Furthermore, the shift from colder-drier to warmer-wetter environments decreased fungal alpha-diversity and the proportion of fungal necromass carbon, ultimately inhibiting SOC decomposition in 'Away' conditions. However, neither HFAs nor EAs were significantly present in the topsoil (0-30 cm), possibly due to the broader adaptability of bacterial communities in these layers. These results suggest that the HFA of SOC decomposition in deep soils may mostly depend on the plasticity of fungal communities. Moreover, these results highlight the key roles of microbial communities in the SOC decomposition of subtropical forests, especially in deep soils that are easily ignored. |
| 英文关键词 | Home -field advantage; Environmental advantage; Soil organic carbon decomposition; Soil microbial community; Subtropical forests |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:001220869400001 |
| 来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/302152 |
| 作者单位 | Jiangxi Agricultural University; Jiangxi Agricultural University; Chinese Academy of Sciences; Shenyang Institute of Applied Ecology, CAS |
| 推荐引用方式 GB/T 7714 | . Enhanced home-field advantage in deep soil organic carbon decomposition: Insights from soil transplantation in subtropical forests[J],2024,924. |
| APA | (2024).Enhanced home-field advantage in deep soil organic carbon decomposition: Insights from soil transplantation in subtropical forests.SCIENCE OF THE TOTAL ENVIRONMENT,924. |
| MLA | "Enhanced home-field advantage in deep soil organic carbon decomposition: Insights from soil transplantation in subtropical forests".SCIENCE OF THE TOTAL ENVIRONMENT 924(2024). |
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