Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14781 |
Quantitative assessment of microbial necromass contribution to soil organic matter | |
Liang, Chao1,2; Amelung, Wulf3; Lehmann, Johannes4,5; Kaestner, Matthias2 | |
2019-09-18 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
卷号 | 25期号:11页码:3578-3590 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Germany; USA |
英文摘要 | Soil carbon transformation and sequestration have received significant interest in recent years due to a growing need for quantitating its role in mitigating climate change. Even though our understanding of the nature of soil organic matter has recently been substantially revised, fundamental uncertainty remains about the quantitative importance of microbial necromass as part of persistent organic matter. Addressing this uncertainty has been hampered by the absence of quantitative assessments whether microbial matter makes up the majority of the persistent carbon in soil. Direct quantitation of microbial necromass in soil is very challenging because of an overlapping molecular signature with nonmicrobial organic carbon. Here, we use a comprehensive analysis of existing biomarker amino sugar data published between 1996 and 2018, combined with novel appropriation using an ecological systems approach, elemental carbon-nitrogen stoichiometry, and biomarker scaling, to demonstrate a suit of strategies for quantitating the contribution of microbe-derived carbon to the topsoil organic carbon reservoir in global temperate agricultural, grassland, and forest ecosystems. We show that microbial necromass can make up more than half of soil organic carbon. Hence, we suggest that next-generation field management requires promoting microbial biomass formation and necromass preservation to maintain healthy soils, ecosystems, and climate. Our analyses have important implications for improving current climate and carbon models, and helping develop management practices and policies. |
英文关键词 | amino sugar ecosystem sustainability microbial anabolism microbial biomarker microbial residue soil organic carbon |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000486781700001 |
WOS关键词 | AMINO-SUGARS ; BACTERIAL RESIDUES ; BIOMASS CARBON ; COMMUNITY STRUCTURE ; PLANT INPUTS ; FUNGAL ; NITROGEN ; FATE ; SEQUESTRATION ; STABILIZATION |
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/187110 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China; 2.UFZ Helmholtz Ctr Environm Res, Dept Environm Biotechnol, Leipzig, Germany; 3.Univ Bonn, Inst Crop Sci & Resource Conservat Soil Sci & Soi, Bonn, Germany; 4.Cornell Univ, Sch Integrat Plant Sci Soil & Crop Sci, Ithaca, NY USA; 5.Tech Univ Munich, Inst Adv Studies, Garching, Germany |
推荐引用方式 GB/T 7714 | Liang, Chao,Amelung, Wulf,Lehmann, Johannes,et al. Quantitative assessment of microbial necromass contribution to soil organic matter[J]. GLOBAL CHANGE BIOLOGY,2019,25(11):3578-3590. |
APA | Liang, Chao,Amelung, Wulf,Lehmann, Johannes,&Kaestner, Matthias.(2019).Quantitative assessment of microbial necromass contribution to soil organic matter.GLOBAL CHANGE BIOLOGY,25(11),3578-3590. |
MLA | Liang, Chao,et al."Quantitative assessment of microbial necromass contribution to soil organic matter".GLOBAL CHANGE BIOLOGY 25.11(2019):3578-3590. |
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