Interactions between soil organic matter chemical structure and microbial communities determine the spatial variation of soil basal respiration in boreal forests
文献类型：期刊论文
| 作者 | Yang, Yan4,5; Cheng, Shulan1,4; Fang, Huajun1,2,3,4,5; Guo, Yifan5; Li, Yuna4; Zhou, Yi4 |
| 刊名 | APPLIED SOIL ECOLOGY
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 183页码:11 |
| ISSN号 | 0929-1393 |
| 关键词 | Soil basal respiration SOM chemical structure 13 C -nuclear magnetic resonance spectroscopy Boreal forest |
| DOI | 10.1016/j.apsoil.2022.104743 |
| 通讯作者 | Cheng, Shulan(slcheng@ucas.ac.cn) ; Fang, Huajun(fanghj@igsnrr.ac.cn) |
| 英文摘要 | Interactions between soil organic matter (SOM) composition and microbial communities determine soil basal respiration (BR, SOM-derived CO2). However, few studies have investigated the relative importance of SOM chemical structure, microbial community composition, and soil environmental factors to the spatial variability of soil BR on a large scale. Here, organic and mineral layer soils were collected along a 650-km boreal forest transect in Northeast China. Combining 13C-nuclear magnetic resonance spectroscopy and high-throughput sequencing techniques, SOM chemical structure, microbial community composition, and soil physicochemical properties were determined to investigate the biotic and abiotic drivers of soil BR. Soil BR, microbial communities, and soil physicochemical properties exhibited significant spatial heterogeneity across sites, but the variations were independent of latitude regardless of soil layer. Soil BR rates were significantly higher in the organic layer than in the mineral layer (0.82 vs. 0.31 CO2-C kg- 1soil-1 h-1, P < 0.001). Multi-model averaging and partial regression showed that SOM chemical structure exhibited the strongest control on the spatial variation of soil BR (contributing 23.0 %), followed by the organic layer soil C/N ratio (contributing 17 %). However, only soil C/N ratio was the most important predictor of soil BR variation in the mineral layer. Copiotrophic bacteria had a higher impact on soil BR than oligotrophic bacteria. In addition, soil physicochemical properties (i.e. pH, mechanical composition) indirectly affected soil BR through regulating soil microbial composition, especially bacteria. Overall, these results highlighted that SOM chemical structure directly or indirectly affected the microbial decomposition of SOM, and contributed more relative to SOM quality. These findings should be incorporated into ecosystem process models to better predict the response of boreal forest soil C emissions to climate change. |
| WOS关键词 | CARBON-USE EFFICIENCY ; STATE C-13 NMR ; TEMPERATURE SENSITIVITY ; NUTRIENT RATIOS ; ALPINE MEADOW ; LAND USES ; DECOMPOSITION ; DIVERSITY ; VARIABILITY ; BACTERIAL |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK1003] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA28130100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA200204020] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23060401] ; National Natural Science Foundation of China[41977041] ; National Natural Science Foundation of China[31770558] ; Thousand Talents Plan Project of High-End Innovative Talents of Qinghai Province[TTPPHEITQP-2019] ; Key Research and Development Projects of Ji'an Science and Technology Bureau |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000918109900001 |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Thousand Talents Plan Project of High-End Innovative Talents of Qinghai Province ; Key Research and Development Projects of Ji'an Science and Technology Bureau |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/189324]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Cheng, Shulan; Fang, Huajun |
| 作者单位 | 1.11A Datun Rd, Beijing 100101, Peoples R China 2.Zhongke Jian Inst Ecoenvironm Sci, Jian 343000, Peoples R China 3.Chinese Acad Sci, Northwest Plateau Inst Biol, Xining 810001, Qinghai, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yan,Cheng, Shulan,Fang, Huajun,et al. Interactions between soil organic matter chemical structure and microbial communities determine the spatial variation of soil basal respiration in boreal forests[J]. APPLIED SOIL ECOLOGY,2023,183:11. |
| APA | Yang, Yan,Cheng, Shulan,Fang, Huajun,Guo, Yifan,Li, Yuna,&Zhou, Yi.(2023).Interactions between soil organic matter chemical structure and microbial communities determine the spatial variation of soil basal respiration in boreal forests.APPLIED SOIL ECOLOGY,183,11. |
| MLA | Yang, Yan,et al."Interactions between soil organic matter chemical structure and microbial communities determine the spatial variation of soil basal respiration in boreal forests".APPLIED SOIL ECOLOGY 183(2023):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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