The response of soil microbial community to application of organic amendment to saline land
IntroductionThe salinization of coastal soils is a primary cause of global land degradation. The aim of this study was to evaluate the effect of organic amendment on the soil microbial community within a saline gradient.MethodsThe study was designed with five levels of electrical conductivity (EC):...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1481156/full |
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| author | Peifei Cong Peifei Cong Peifei Cong Pengfei Huang Zhisheng Huang Zhisheng Huang Zhisheng Huang Zhisheng Huang |
| author_facet | Peifei Cong Peifei Cong Peifei Cong Pengfei Huang Zhisheng Huang Zhisheng Huang Zhisheng Huang Zhisheng Huang |
| author_sort | Peifei Cong |
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| description | IntroductionThe salinization of coastal soils is a primary cause of global land degradation. The aim of this study was to evaluate the effect of organic amendment on the soil microbial community within a saline gradient.MethodsThe study was designed with five levels of electrical conductivity (EC): 0.33, 0.62, 1.13, 1.45 and 2.04 ds m−1. By conducting indoor potted plant experiments, determine the effects of applying microbial organic fertilizer on the physicochemical properties of soil and the structure of soil microbial communities under different salinity concentrations.ResultsCompared with the control, higher OM content, total N, and higher crop biomass were observed in samples with organic amendment at the same salinity level. At the same salinity levels, the mean bacterial activity (AUC) and the mean number of substrates were higher than in the soil without organic amendment according to analyses by means of Biolog ECO MicroPlate. The results of canonical correspondence analysis indicate that after the application of organic amendments, the composition of loam and clay replaces soil pH, and aboveground biomass replaces root biomass as key indicators closely monitoring Community level physiological profiling (CLPP). In soil with the same salinity level, the application of microbial organic fertilizer led to an increase in the proportion of Actinobacteriota and a decrease in the proportion of Chloroflexi. In 0.3dS m-1 soil, the abundance of actinomycetes increased from 23% to 27% after application of microbial organic fertilizer, while the abundance of basidiomycetes decreased from 20% to 6%. In addition, after the application of microbial organic fertilizer, RB41, blastococcus and solirubrobacter significantly increased, while Melothermus and Herpetosiphon significantly decreased.DiscussionThis study provides a strong theoretical basis for using microbial organic fertilizers to improve saline-alkali soil. |
| format | Article |
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| institution | Kabale University |
| issn | 1664-302X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Microbiology |
| spelling | doaj-art-42c13b2b056e4222a1d4946e53a642062025-01-06T06:59:48ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2025-01-011510.3389/fmicb.2024.14811561481156The response of soil microbial community to application of organic amendment to saline landPeifei Cong0Peifei Cong1Peifei Cong2Pengfei Huang3Zhisheng Huang4Zhisheng Huang5Zhisheng Huang6Zhisheng Huang7Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Xinxiang, ChinaDeepBlue Academy of Sciences, Shanghai, ChinaYucheng Comprehensive Experiment Station, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaInstitute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Xinxiang, ChinaDeepBlue Academy of Sciences, Shanghai, ChinaClinical Research Center for Mental Disorders, Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai, ChinaKnowledge Representation and Reasoning (KR&R) Group, Vrije Universiteit Amsterdam, Amsterdam, NetherlandsHaoxinqing Health Industry Group, Beijing, ChinaIntroductionThe salinization of coastal soils is a primary cause of global land degradation. The aim of this study was to evaluate the effect of organic amendment on the soil microbial community within a saline gradient.MethodsThe study was designed with five levels of electrical conductivity (EC): 0.33, 0.62, 1.13, 1.45 and 2.04 ds m−1. By conducting indoor potted plant experiments, determine the effects of applying microbial organic fertilizer on the physicochemical properties of soil and the structure of soil microbial communities under different salinity concentrations.ResultsCompared with the control, higher OM content, total N, and higher crop biomass were observed in samples with organic amendment at the same salinity level. At the same salinity levels, the mean bacterial activity (AUC) and the mean number of substrates were higher than in the soil without organic amendment according to analyses by means of Biolog ECO MicroPlate. The results of canonical correspondence analysis indicate that after the application of organic amendments, the composition of loam and clay replaces soil pH, and aboveground biomass replaces root biomass as key indicators closely monitoring Community level physiological profiling (CLPP). In soil with the same salinity level, the application of microbial organic fertilizer led to an increase in the proportion of Actinobacteriota and a decrease in the proportion of Chloroflexi. In 0.3dS m-1 soil, the abundance of actinomycetes increased from 23% to 27% after application of microbial organic fertilizer, while the abundance of basidiomycetes decreased from 20% to 6%. In addition, after the application of microbial organic fertilizer, RB41, blastococcus and solirubrobacter significantly increased, while Melothermus and Herpetosiphon significantly decreased.DiscussionThis study provides a strong theoretical basis for using microbial organic fertilizers to improve saline-alkali soil.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1481156/fullfunctional diversitysalinity increaseorganic remediationcommunity level physiological profilemicrobial community |
| spellingShingle | Peifei Cong Peifei Cong Peifei Cong Pengfei Huang Zhisheng Huang Zhisheng Huang Zhisheng Huang Zhisheng Huang The response of soil microbial community to application of organic amendment to saline land Frontiers in Microbiology functional diversity salinity increase organic remediation community level physiological profile microbial community |
| title | The response of soil microbial community to application of organic amendment to saline land |
| title_full | The response of soil microbial community to application of organic amendment to saline land |
| title_fullStr | The response of soil microbial community to application of organic amendment to saline land |
| title_full_unstemmed | The response of soil microbial community to application of organic amendment to saline land |
| title_short | The response of soil microbial community to application of organic amendment to saline land |
| title_sort | response of soil microbial community to application of organic amendment to saline land |
| topic | functional diversity salinity increase organic remediation community level physiological profile microbial community |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1481156/full |
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