| Biochar induces mineralization of soil recalcitrant components by activation of biochar responsive bacteria groups | |
| Ling, Lu; Luo, Yu; Jiang, Bin; Lv, Jitao; Meng, Chunmei; Liao, Yuhong; Reid, Brian J.; Ding, Fan; Lu, Zhijiang; Kuzyakov, Yakov; Xu, Jianming | |
| 2022-09-01 | |
| Source Publication | SOIL BIOLOGY & BIOCHEMISTRY
 |
| ISSN | 0038-0717 |
| Volume | 172Issue:0Pages:108778 |
| Abstract | Amendment of soil with biochar induces a shift in microbial community structure and promotes faster mineralization of soil organic carbon (SOC), thus offsetting C sequestration effects. Whether biochar induces losses of labile or persistent SOC pools remains largely unknown, and the responsible decomposers await identification. Towards addressing these ends, a C3 soil was amended with Biochar500 or Biochar600 (pyrolyzed at 500 degrees C and 600 degrees C, respectively) produced from a C4-maize feedstock and incubated for 28 days. Combination of stable isotope 13C techniques, high-throughput sequencing and Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS) allowed changes in soil chemodiversity and biodiversity, as well as their interactive effects on biochar induced SOC mineralization to be elucidated. Results indicated that: i) biochar addition shifted the bacterial community towards dominance of Gemmatimonadetes, Bacteroidia, Alphaproteobacteria and Gammaproteobacteria classes, and coincidence with recalcitrant C components and neutral pH soil; ii) the persistent DOM components (such as condensed aromatics and tannin) were depleted in biochar amended soils, while labile DOM components (such as unsaturated hydrocarbons, lipids, carbohydrates and proteins/amino sugar) were relatively enriched, and; iii) Biochar600 promoted additional soil derived CO2 carbon loss over 28 days (93 mg C kg-1 soil). Collectively, these results suggested that the majority of soil derived CO2 efflux in biochar amended soils originated from recalcitrant components that were mineralized by the persistent organic matter decomposers. This research highlights the significance of biochar responsive taxa in changes of DOM chemodiversity and potential loss of SOC via mineralization. |
| Department | 环境化学与生态毒理学国家重点实验室 ; 环境化学与生态毒理学国家重点实验室 |
| Keyword | DISSOLVED ORGANIC-MATTER MICROBIAL COMMUNITY COMPOSITION CARBON DECOMPOSITION BIOMASS LIGNIN ACIDOBACTERIA FEEDSTOCK GRADIENTS INSIGHTS |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/47478 |
| Collection | 环境化学与生态毒理学国家重点实验室 |
| Corresponding Author | Luo, Yu |
| Affiliation | 1.Zhejiang Univ, Inst Soil & Water Resources & Environm Sci, Coll Environm & Resource Sci, Zhejiang Prov Key Lab Agr Resources & Environm, Hangzhou 310058, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 4.Shihezi Univ, Agr Coll, Shihezi 83200, Peoples R China 5.Univ East Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England |
| Recommended Citation GB/T 7714 | Ling, Lu,Luo, Yu,Jiang, Bin,et al. Biochar induces mineralization of soil recalcitrant components by activation of biochar responsive bacteria groups[J]. SOIL BIOLOGY & BIOCHEMISTRY,2022,172(0):108778. |
| APA | Ling, Lu.,Luo, Yu.,Jiang, Bin.,Lv, Jitao.,Meng, Chunmei.,...&Xu, Jianming.(2022).Biochar induces mineralization of soil recalcitrant components by activation of biochar responsive bacteria groups.SOIL BIOLOGY & BIOCHEMISTRY,172(0),108778. |
| MLA | Ling, Lu,et al."Biochar induces mineralization of soil recalcitrant components by activation of biochar responsive bacteria groups".SOIL BIOLOGY & BIOCHEMISTRY 172.0(2022):108778. |
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