中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 植物研究所
  3. 中国科学院植物研究所
  4. 植被与环境变化国家重点实验室
Plant carbon inputs through shoot, root, and mycorrhizal pathways affect soil organic carbon turnover differently

文献类型：期刊论文

作者Huang, Junsheng; Liu, Weixing; Yang, Sen2; Yang, Lu2; Peng, Ziyang2; Deng, Meifeng; Xu, Shan; Zhang, Beibei; Ahirwal, Jitendra; Liu, Lingli2
刊名SOIL BIOLOGY & BIOCHEMISTRY
出版日期2021
卷号160
关键词Arbuscular mycorrhizal fungi Plant carbon inputs Plant-soil interaction Priming effect Soil fertility Soil organic carbon turnover
ISSN号0038-0717
DOI10.1016/j.soilbio.2021.108322
文献子类Article
英文摘要Plant carbon (C) inputs via shoot, roots, and the associated mycorrhizal fungi are vital drivers of soil organic C (SOC) stock and turnover. Both the amounts and proportions of plant C inputs to the soil through these pathways can be affected by soil fertility. Yet, we know little about how divergent pathways of plant C inputs contribute to SOC cycling under different soil fertility. By growing the C4 grass Cleistogenes squarrosa in C3 soils, we quantified the contributions of shoot, roots, and arbuscular mycorrhizal fungi (AMF) to SOC turnover with different fertility in a temperate grassland. Our four-year field experiment showed that soils with higher fertility sequestered more shoot-, root- and AMF-derived C, which were mainly driven by greater soil microbial biomass. Irrespective of soil fertility, roots contributed the most (44%) to new SOC formation, while shoot (28%) and AMF (28%) exerted similar but lower contributions. We found that the positive priming effects induced by roots and AMF were greater in more fertile soils, which were primarily associated with more root- and AMF-derived C, respectively. Across all the soil fertility levels, root pathway had an equal impact on new SOC accumulation and native SOC losses via priming effects, and thus caused no net SOC changes. However, the priming effect induced by AMF pathway was 60% higher than the root pathway across treatments. The disproportionately large priming effects relative to new SOC accumulation induced by AMF led to net SOC losses, especially in soils with higher fertility. Overall, we demonstrated that plant C inputs through shoot, root, and mycorrhizal pathways have differential impacts on SOC turnover. Our quantitative estimation should be valuable for more accurately modeling how much plant-derived C can be sequestered in the soils and advancing our understanding of future SOC dynamics under global changes.
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BIOMASS ALLOCATION ; FUNGI ; NITROGEN ; MATTER ; DECOMPOSITION ; RHIZOSPHERE ; FOREST ; LITTER ; SEQUESTRATION ; COOPERATION
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000683006800004
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构Chinese National Key Development Program for Basic Research [2019YFA0607301] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA23080301, XDA26010303] ; National Natural Science Foundation of China [31901138, 31988102, 31770530]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26639]  
专题植被与环境变化国家重点实验室
作者单位1.Univ Chinese Acad Sci, Yuquan Rd, Beijing 100049, Peoples R China
2.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		 Huang, Junsheng,Liu, Weixing,Yang, Sen,et al. Plant carbon inputs through shoot, root, and mycorrhizal pathways affect soil organic carbon turnover differently[J]. SOIL BIOLOGY & BIOCHEMISTRY,2021,160.
APA Huang, Junsheng.,Liu, Weixing.,Yang, Sen.,Yang, Lu.,Peng, Ziyang.,...&Liu, Lingli.(2021).Plant carbon inputs through shoot, root, and mycorrhizal pathways affect soil organic carbon turnover differently.SOIL BIOLOGY & BIOCHEMISTRY,160.
MLA Huang, Junsheng,et al."Plant carbon inputs through shoot, root, and mycorrhizal pathways affect soil organic carbon turnover differently".SOIL BIOLOGY & BIOCHEMISTRY 160(2021).

入库方式： OAI收割

来源：植物研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。