Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14132 |
Tree mycorrhizal type predicts within-site variability in the storage and distribution of soil organic matter | |
Craig, Matthew E.1; Turner, Benjamin L.2; Liang, Chao3; Clay, Keith1; Johnson, Daniel J.4; Phillips, Richard P.1 | |
2018-08-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:8页码:3317-3330 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Panama; Peoples R China |
英文摘要 | Forest soils store large amounts of carbon (C) and nitrogen (N), yet how predicted shifts in forest composition will impact long-term C and N persistence remains poorly understood. A recent hypothesis predicts that soils under trees associated with arbuscular mycorrhizas (AM) store less C than soils dominated by trees associated with ectomycorrhizas (ECM), due to slower decomposition in ECM-dominated forests. However, an incipient hypothesis predicts that systems with rapid decompositione-e.g. most AM-dominated forestsenhance soil organic matter (SOM) stabilization by accelerating the production of microbial residues. To address these contrasting predictions, we quantified soil C and N to 1 m depth across gradients of ECM-dominance in three temperate forests. By focusing on sites where AM- and ECM-plants co-occur, our analysis controls for climatic factors that covary with mycorrhizal dominance across broad scales. We found that while ECM stands contain more SOM in topsoil, AM stands contain more SOM when subsoil to 1 m depth is included. Biomarkers and soil fractionations reveal that these patterns are driven by an accumulation of microbial residues in AM-dominated soils. Collectively, our results support emerging theory on SOM formation, demonstrate the importance of subsurface soils in mediating plant effects on soil C and N, and indicate that shifts in the mycorrhizal composition of temperate forests may alter the stabilization of SOM. |
英文关键词 | amino sugars decomposition MEMs hypothesis mineral-associated mycorrhizal fungi soil carbon soil depth soil nitrogen temperate forest |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000437284700007 |
WOS关键词 | ARBUSCULAR MYCORRHIZAL ; LITTER DECOMPOSITION ; MICROBIAL EFFICIENCY ; CARBON STORAGE ; NITROGEN RATIO ; UNITED-STATES ; MURAMIC ACID ; MINERAL SOIL ; PLANT INPUTS ; FOREST |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17008 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Indiana Univ, Dept Biol, Bloomington, IN 47405 USA; 2.Smithsonian Trop Res Inst, Balboa, Ancon, Panama; 3.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Shenyang, Liaoning, Peoples R China; 4.Los Alamos Natl Lab, Los Alamos, NM USA |
推荐引用方式 GB/T 7714 | Craig, Matthew E.,Turner, Benjamin L.,Liang, Chao,et al. Tree mycorrhizal type predicts within-site variability in the storage and distribution of soil organic matter[J]. GLOBAL CHANGE BIOLOGY,2018,24(8):3317-3330. |
APA | Craig, Matthew E.,Turner, Benjamin L.,Liang, Chao,Clay, Keith,Johnson, Daniel J.,&Phillips, Richard P..(2018).Tree mycorrhizal type predicts within-site variability in the storage and distribution of soil organic matter.GLOBAL CHANGE BIOLOGY,24(8),3317-3330. |
MLA | Craig, Matthew E.,et al."Tree mycorrhizal type predicts within-site variability in the storage and distribution of soil organic matter".GLOBAL CHANGE BIOLOGY 24.8(2018):3317-3330. |
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