Effects of Land Use on the Mineralization of Organic Matter in Ultisol
Soil organic matter mineralization changed by land-use types is still not clearly understood. In this study, soils from typical land-use types including adjacent plantations of bamboo (Bam), camphor (Cam), and tea (Tea) were chosen to systematically investigate the role of organic carbon components...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/12/2915 |
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| author | Peidong Xu Shihao Ma Xiongfei Rao Shipeng Liao Jun Zhu Chunlei Yang |
| author_facet | Peidong Xu Shihao Ma Xiongfei Rao Shipeng Liao Jun Zhu Chunlei Yang |
| author_sort | Peidong Xu |
| collection | DOAJ |
| description | Soil organic matter mineralization changed by land-use types is still not clearly understood. In this study, soils from typical land-use types including adjacent plantations of bamboo (Bam), camphor (Cam), and tea (Tea) were chosen to systematically investigate the role of organic carbon components and microbial community compositions in the organic matter mineralization in Ultisol. The mineralization of organic matter followed the sequence Bam < Cam < Tea. The higher carbon contents of labile pools were in the Cam and the Tea than that in the Bam. The carbon content of dissolved organic matter (DOM) showed the order Bam < Cam < Tea, whereas the complexity of chemical structure in DOM followed the opposite trend. The land-use types significant shifted the bacterial and fungal communities, and the relative abundances of bacterial or fungal phyla of <i>Actinobacteria</i>, <i>Acidobacteria</i>, <i>Firmicutes</i>, and <i>Basidiomycota</i> were significantly different among the land-use types. The multivariate regression tree results showed that the total organic carbon and/or the C/N ratio were dominant factors in influencing the bacterial and fungal communities. Moreover, the redundancy analysis results demonstrated that the communities of bacteria and fungi in Bam, Cam, and Tea were tightly linked to the C/N ratio, the pH and the labile pool I carbon, and the DOM, respectively. The Pearson’s correlation results revealed that the mineralization of organic matter was significantly correlated with the organic carbon components, but generally not the microbial community compositions, which implied that the organic carbon components were perhaps the major determinant in controlling the organic matter mineralization in Ultisol. |
| first_indexed | 2024-03-09T17:25:35Z |
| format | Article |
| id | doaj.art-029f8c2e1af04fc6988782ca9c413a66 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T17:25:35Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-029f8c2e1af04fc6988782ca9c413a662023-11-24T12:43:14ZengMDPI AGAgronomy2073-43952022-11-011212291510.3390/agronomy12122915Effects of Land Use on the Mineralization of Organic Matter in UltisolPeidong Xu0Shihao Ma1Xiongfei Rao2Shipeng Liao3Jun Zhu4Chunlei Yang5College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, ChinaHubei Academy of Tobacco Sciences, Wuhan 430030, ChinaCollege of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, ChinaHubei Academy of Tobacco Sciences, Wuhan 430030, ChinaSoil organic matter mineralization changed by land-use types is still not clearly understood. In this study, soils from typical land-use types including adjacent plantations of bamboo (Bam), camphor (Cam), and tea (Tea) were chosen to systematically investigate the role of organic carbon components and microbial community compositions in the organic matter mineralization in Ultisol. The mineralization of organic matter followed the sequence Bam < Cam < Tea. The higher carbon contents of labile pools were in the Cam and the Tea than that in the Bam. The carbon content of dissolved organic matter (DOM) showed the order Bam < Cam < Tea, whereas the complexity of chemical structure in DOM followed the opposite trend. The land-use types significant shifted the bacterial and fungal communities, and the relative abundances of bacterial or fungal phyla of <i>Actinobacteria</i>, <i>Acidobacteria</i>, <i>Firmicutes</i>, and <i>Basidiomycota</i> were significantly different among the land-use types. The multivariate regression tree results showed that the total organic carbon and/or the C/N ratio were dominant factors in influencing the bacterial and fungal communities. Moreover, the redundancy analysis results demonstrated that the communities of bacteria and fungi in Bam, Cam, and Tea were tightly linked to the C/N ratio, the pH and the labile pool I carbon, and the DOM, respectively. The Pearson’s correlation results revealed that the mineralization of organic matter was significantly correlated with the organic carbon components, but generally not the microbial community compositions, which implied that the organic carbon components were perhaps the major determinant in controlling the organic matter mineralization in Ultisol.https://www.mdpi.com/2073-4395/12/12/2915land-use typesmineralizationorganic carbon componentsmicrobial community compositionsUltisol |
| spellingShingle | Peidong Xu Shihao Ma Xiongfei Rao Shipeng Liao Jun Zhu Chunlei Yang Effects of Land Use on the Mineralization of Organic Matter in Ultisol Agronomy land-use types mineralization organic carbon components microbial community compositions Ultisol |
| title | Effects of Land Use on the Mineralization of Organic Matter in Ultisol |
| title_full | Effects of Land Use on the Mineralization of Organic Matter in Ultisol |
| title_fullStr | Effects of Land Use on the Mineralization of Organic Matter in Ultisol |
| title_full_unstemmed | Effects of Land Use on the Mineralization of Organic Matter in Ultisol |
| title_short | Effects of Land Use on the Mineralization of Organic Matter in Ultisol |
| title_sort | effects of land use on the mineralization of organic matter in ultisol |
| topic | land-use types mineralization organic carbon components microbial community compositions Ultisol |
| url | https://www.mdpi.com/2073-4395/12/12/2915 |
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