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dc.contributor.authorLi, Hailiang
dc.contributor.authorYang, Yang
dc.contributor.authorCrabbe, M. James C.
dc.contributor.authorChen, Haikui
dc.identifier.citationLi H, Yang Y, Crabbe MJC, Chen H (2022) 'The characteristics of dissolved organic matter and soil microbial communities in the soils of Larix principis-rupprechtii Mayr. plantations in the Qinling mountains, China', Sustainability, 14 (19), 11968en_US
dc.description.abstractSoil microorganisms and dissolved organic matter (DOM) play vital roles in nutrient cycling and maintaining plant diversity. The aim of this study was to clarify the relationship between DOM component characteristics and microbial community structure in the soil of Larix principis-rupprechtii Mayr. plantations. We quantified the responses of the soil microbial and DOM characteristics to stand age in a plantation forest ecosystem using phospholipid fatty acid (PLFA) analyses, ultravioletvisible spectroscopy, and fluorescence spectroscopy. Three humic-like components and a fulvic-like component were identified from the soil samples, and humic-like substances were the dominant component of the soil DOM of the stands of different ages. The fluorescence index showed that the sources of soil DOM in the stands of different ages throughout the growth stages may be mostly plant residues, with very little contribution from microbial sources. Furthermore, the results demonstrated that stand age and growth season had a significant effect on the contents of the soil PLFA biomarkers of L. principis-rupprechtii Mayr. Additionally, significantly higher contents of different species of soil PLFA biomarkers were observed in the young forest (17a) than in the sapling forest (7a) and half-mature forest (27a), suggesting that stand age differences in the quality and quantity of larch litter and soil physicochemical characteristics affect the microbial community structure. Redundancy analysis (RDA) showed that changes in the soil DOM quality and components that were driven by growth season and stand age were the major drivers of variations in the soil microbial community structure in the study region. Overall, the seasonal variations in DOM quality and components may contribute to the variability of soil microorganisms.en_US
dc.description.sponsorshipThis research was supported by the Scientific Research Start-up Funds for Openly Recruited Doctors of Gansu Agricultural University (Grant No. GAU-KYQD-2018-18), and the Natural Science Foundation of Gansu Province, China (Grant No. 20JR10RA522).en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.subjectenvironmental management practicesen_US
dc.subjectSubject Categories::C150 Environmental Biologyen_US
dc.titleThe characteristics of dissolved organic matter and soil microbial communities in the soils of Larix principis-rupprechtii Mayr. plantations in the Qinling mountains, Chinaen_US
dc.contributor.departmentGansu Agricultural Universityen_US
dc.contributor.departmentNorthwest Normal Universityen_US
dc.contributor.departmentOxford Universityen_US
dc.contributor.departmentUniversity of Bedfordshireen_US
dc.contributor.departmentShanxi Universityen_US
dc.contributor.departmentNorth Minzu Universityen_US
dc.description.notegold oa

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