Mycelium- and root-derived C inputs differ in their impacts on soil organic C pools and decomposition in forests
文献类型：期刊论文
| 作者 | Zhang, Ziliang1,2; Xiao, Juan3; Yuan, Yuanshuang1,2; Zhao, Chunzhang1; Liu, Qing1; Yin, Huajun1,3 |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2018-08 |
| 卷号 | 123页码:257-265 |
| 关键词 | Priming effect Ectomycorrhizal fungi Extramatrical mycelia Labile carbon Recalcitrant c iarbon Stable carbonsotope |
| ISSN号 | 0038-0717 |
| DOI | 10.1016/j.soilbio.2018.05.015 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | While multiple lines of evidence suggests that root carbon (C) can significantly impact the soil organic C (SOC) pool and subsequent C cycles via rhizosphere priming effects, the relative magnitude of the effects that root- and fungal-derived C inputs have in driving the priming of SOC decomposition are currently unknown. In this study, we used ingrowth cores and stable C isotope analyses to quantify root- and mycelium-derived C sequestered in soil labile and recalcitrant C pools and their relative contributions to the decomposition of native SOC in a spruce-fir-dominated coniferous forest on the eastern Tibetan Plateau, China. The results showed that new C sequestered in the soil labile C pool was primarily (77%) from mycelium-derived C, while 60% of the root derived C sequestered in the soil was incorporated into the recalcitrant pool. Furthermore, although the total native SOC pool was not significantly influenced by new C derived from both roots and mycelia, mycelium derived C induced a remarkably greater negative priming effect (-12.0%) on the native labile C pool than did root-derived C (-5.8%); in contrast, mycelium-derived C induced a greater positive priming effect (13.8%) than root-derived C (7.1%) on the native recalcitrant C pool. Collectively, our findings suggest that mycelium-derived C make a greater contribution to the newly sequestered C in the soil labile C pool than root-derived C, thereby inducing a remarkably greater positive priming effect on the decomposition of native soil recalcitrant C. Therefore, mycelium-derived C inputs may play a dominant role in soil C dynamics and long-term C storage, at least in alpine forest ecosystems where ectomycorrhizal mutualisms dominate. |
| 学科主题 | Environment/ecology |
| URL标识 | 查看原文 |
| WOS关键词 | ECTOMYCORRHIZAL FUNGI ; MICROBIAL BIOMASS ; MYCORRHIZAL FUNGI ; CARBON INPUT ; ELEVATED CO2 ; MINERALIZATION RATES ; LITTER DECOMPOSITION ; EXTRACTION METHOD ; NITROGEN UPTAKE ; PINE FOREST |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000437392000030 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://210.75.237.14/handle/351003/29882]  |
| 专题 | 生物多样性与生态系统服务领域_生态系统恢复与生物多样性保育四川省重点实验室 成都生物研究所_生态研究 生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室 生物多样性与生态系统服务领域_生态研究 |
| 作者单位 | 1.CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.China West Normal Univ, Coll Environm Sci & Engn, Nanchong 637000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ziliang,Xiao, Juan,Yuan, Yuanshuang,et al. Mycelium- and root-derived C inputs differ in their impacts on soil organic C pools and decomposition in forests[J]. SOIL BIOLOGY & BIOCHEMISTRY,2018,123:257-265. |
| APA | Zhang, Ziliang,Xiao, Juan,Yuan, Yuanshuang,Zhao, Chunzhang,Liu, Qing,&Yin, Huajun.(2018).Mycelium- and root-derived C inputs differ in their impacts on soil organic C pools and decomposition in forests.SOIL BIOLOGY & BIOCHEMISTRY,123,257-265. |
| MLA | Zhang, Ziliang,et al."Mycelium- and root-derived C inputs differ in their impacts on soil organic C pools and decomposition in forests".SOIL BIOLOGY & BIOCHEMISTRY 123(2018):257-265. |
入库方式： OAI收割
来源：成都生物研究所
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