Land use types affect soil microbial NO3- immobilization through changed fungal and bacterial contribution in alkaline soils of a subtropical montane agricultural landscape | |
Wang, Xingling5,6; Zhou, Minghua6; Zhu, Bo6; Brueggemann, Nicolas4; Zhang, Wei3; Butterbach-Bahl, Klaus1,2 | |
刊名 | BIOLOGY AND FERTILITY OF SOILS |
2023-12-27 | |
页码 | 16 |
关键词 | Soil microbial NO3- immobilization N-15 tracing technique Amino sugars-SIP Alkaline soils Land use Subtropical mosaic montane agricultural landscape |
ISSN号 | 0178-2762 |
DOI | 10.1007/s00374-023-01787-5 |
英文摘要 | Soil microbial nitrate (NO3-) immobilization plays a vital role in enhancing the nitrogen (N) retention in the subtropical montane agricultural landscapes. However, how and why the potential microbial NO3- immobilization and the relative contribution of fungi and bacteria vary across different land use types remain still unclear in the subtropical mosaic montane agricultural landscapes. Thus, in the present study, soil gross microbial NO3- immobilization rates as well as the respective contribution of fungi and bacteria were determined throughout the whole soil profiles for three land use types (woodland, orchard, and cropland) by using the N-15 tracing and amino sugar-based stable isotope probing (Amino sugars-SIP) techniques. The soil gross microbial NO3- immobilization rates in woodland soils were significantly higher than those in cropland and orchard soils across different soil layers (p < 0.05), and those of topsoil were significantly higher than those for subsoils (e.g., 20-40 cm) across different land use types (p < 0.05). Soil microbial biomass C (MBC) and N (MBN), organic C (SOC), total N (TN), and dissolved organic C (DOC) contents and C/N ratios were closely associated to gross microbial NO3- immobilization rates. Fungi played a greater role than bacteria in immobilizing soil NO3- in woodland and orchard soils, but the opposite occurred in cropland soils that over 85% of the variations in fungal and bacterial NO3- immobilization rates could be explained by their respective phospholipid fatty acid-derived (PLFA-derived) biomass. The present study indicated that afforestation may be effective to enhance soil NO3- retention in alkaline soils, thereby likely decreasing the risk of NO3- losses in subtropical mosaic montane agricultural landscapes through enhancing the soil NO3- immobilization by both fungi and bacteria. |
资助项目 | National Natural Science Foundation of China |
WOS关键词 | ECTOMYCORRHIZAL FUNGI ; NITRATE ASSIMILATION ; N IMMOBILIZATION ; ORGANIC-MATTER ; SPRUCE FOREST ; PURPLE SOIL ; NITROGEN ; CARBON ; RETENTION ; COMMUNITIES |
WOS研究方向 | Agriculture |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:001132370200001 |
资助机构 | National Natural Science Foundation of China |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/57811] |
专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
通讯作者 | Zhou, Minghua |
作者单位 | 1.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Atmospher Environm Res, D-82467 Garmisch Partenkirchen, Germany 2.Aarhus Univ, Pioneer Ctr Land CRAFT, Dept Agroecol, Aarhus C, Denmark 3.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 4.Forschungszentrum Julich, Inst Bio & Geosci, Agrosphere IBG 3, Julich D-52425, Germany 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Xingling,Zhou, Minghua,Zhu, Bo,et al. Land use types affect soil microbial NO3- immobilization through changed fungal and bacterial contribution in alkaline soils of a subtropical montane agricultural landscape[J]. BIOLOGY AND FERTILITY OF SOILS,2023:16. |
APA | Wang, Xingling,Zhou, Minghua,Zhu, Bo,Brueggemann, Nicolas,Zhang, Wei,&Butterbach-Bahl, Klaus.(2023).Land use types affect soil microbial NO3- immobilization through changed fungal and bacterial contribution in alkaline soils of a subtropical montane agricultural landscape.BIOLOGY AND FERTILITY OF SOILS,16. |
MLA | Wang, Xingling,et al."Land use types affect soil microbial NO3- immobilization through changed fungal and bacterial contribution in alkaline soils of a subtropical montane agricultural landscape".BIOLOGY AND FERTILITY OF SOILS (2023):16. |
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