Plant and microbial pathways driving plant diversity effects on soil carbon accumulation in subtropical forest
文献类型：期刊论文
| 作者 | Jia, Yufu; Zhai, Guoqing5; Zhu, Shanshan5; Liu, Xiaojuan; Schmid, Bernhard4; Wang, Zhiheng2,3; Ma, Keping5 ; Feng, Xiaojuan5
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| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2021 |
| 卷号 | 161 |
| 关键词 | Soil organic carbon Plant species richness Biomarker Soil fractionation Microbial necromass |
| ISSN号 | 0038-0717 |
| DOI | 10.1016/j.soilbio.2021.108375 |
| 文献子类 | Article |
| 英文摘要 | Plant species richness (PSR) is known to affect soil organic carbon (SOC) storage. However, due to the complex origin and composition of SOC, mechanisms driving the PSR-SOC relationship are not yet fully revealed, hampering an accurate prediction of SOC dynamics under changing plant diversity. Here we investigate the effect of PSR on SOC accumulation along a natural PSR and stand age gradient in a subtropical forest with plot, litter and soil properties being considered. Biomarkers and soil fractionation are used to delineate plant and microbial components of SOC and their influences on the PSR-SOC relationship in the topsoil (0-10 cm) versus subsoil (30-40 cm). We show that PSR does positively affect SOC concentrations at both depths even after considering the effects of substrate, edaphic properties and stand age. However, the PSR-SOC relationship is driven by different pathways in the topsoil versus subsoil. In the topsoil, PSR exerts a strong additive effect on SOC accumulation after the positive influence of substrate, edaphic properties and stand age, mainly regulated by plant-derived components (represented by lignin phenols, light fraction and particulate organic matter), followed by microbial residues. By contrast, PSR has a positive effect on the accrual of microbial-derived components (represented by amino sugars and mineral-associated organic matter) but not plant residues likely via affecting dissolved organic matter (DOM) and nitrogen availability in the subsoil (i.e., DOM-microbial pathway). As a result, microbial-derived components dominate SOC variations in the subsoil, while plant-derived components play a more important role in the topsoil. These findings provide novel information on the mechanistic links between PSR and SOC accumulation at different depths and highlight the role of PSR on long-term carbon sink potentials of soils, which may aid in predicting soil carbon dynamics with plant diversity changes in Earth's system model. |
| 学科主题 | Soil Science |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1879-3428 |
| WOS关键词 | ORGANIC-CARBON ; COMMUNITY STRUCTURE ; SPECIES-DIVERSITY ; FRESH CARBON ; MURAMIC ACID ; AMINO-SUGARS ; MATTER ; DECOMPOSITION ; NITROGEN ; PRODUCTIVITY |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000694767200003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China [42025303, 41807329, 31988102] ; ChineseAcademy of Sciences Interdisciplinary Innovation Team [JCTD-2018-06] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26638]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Peking Univ, Coll Urban & Environm Sci, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China 2.Peking Univ, Coll Urban & Environm Sci, Inst Ecol, Minist Educ, Beijing 100871, Peoples R China 3.Univ Zurich, Dept Geog, Winterthurerstr 190, CH-8057 Zurich, Switzerland 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Yufu,Zhai, Guoqing,Zhu, Shanshan,et al. Plant and microbial pathways driving plant diversity effects on soil carbon accumulation in subtropical forest[J]. SOIL BIOLOGY & BIOCHEMISTRY,2021,161. |
| APA | Jia, Yufu.,Zhai, Guoqing.,Zhu, Shanshan.,Liu, Xiaojuan.,Schmid, Bernhard.,...&Feng, Xiaojuan.(2021).Plant and microbial pathways driving plant diversity effects on soil carbon accumulation in subtropical forest.SOIL BIOLOGY & BIOCHEMISTRY,161. |
| MLA | Jia, Yufu,et al."Plant and microbial pathways driving plant diversity effects on soil carbon accumulation in subtropical forest".SOIL BIOLOGY & BIOCHEMISTRY 161(2021). |
入库方式： OAI收割
来源：植物研究所
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