Moss-dominated biological soil crusts improve stability of soil organic carbon on the Loess Plateau, China
The succession of biological soil crust (biocrust) may alter soil organic carbon (SOC) stability by affecting SOC fractions in arid and semi-arid regions. In the study, the SOC fractions were measured including soil easily oxidizable carbon (SEOC), soil microbial biomass carbon (SMBC), soil water so...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2019-02-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201902-0008_moss-dominated-biological-soil-crusts-improve-stability-of-soil-organic-carbon-on-the-loess-plateau-china.php |
| _version_ | 1828007295507759104 |
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| author | Xueqin Yang Mingxiang Xu Yunge Zhao Liqian Gao Shanshan Wang |
| author_facet | Xueqin Yang Mingxiang Xu Yunge Zhao Liqian Gao Shanshan Wang |
| author_sort | Xueqin Yang |
| collection | DOAJ |
| description | The succession of biological soil crust (biocrust) may alter soil organic carbon (SOC) stability by affecting SOC fractions in arid and semi-arid regions. In the study, the SOC fractions were measured including soil easily oxidizable carbon (SEOC), soil microbial biomass carbon (SMBC), soil water soluble carbon (SWSC), and soil mineralizable carbon (SMC) at the Loess Plateau of China by using four biocrusts. The results show that SOC fractions in the biocrust layer were consistently higher than that in the subsoil layers. The average SOC content of moss crust was approximately 1.3-2.0 fold that of three other biocrusts. Moss crusts contain the lowest ratio of SEOC to SOC compared with other biocrusts. The ratio of SMC to SOC was the highest in light cyanobacteria biocrust and the lowest in moss crust, but no difference was observed in SMBC to SOC and SWSC to SOC in biocrust layers among four studied biocrusts. The results show that the moss crusts increase the accumulation of organic carbon into soil and reduce the ratio of SEOC to SOC and SMC to SOC. Together, these findings indicate that moss crusts increase the SOC stability and have important implications that SOC fractions and mineralization amount are good indicators for assessing the SOC stability. |
| first_indexed | 2024-04-10T08:08:16Z |
| format | Article |
| id | doaj.art-2660fd1bc5a84aa9962a09500520a3a8 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:08:16Z |
| publishDate | 2019-02-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-2660fd1bc5a84aa9962a09500520a3a82023-02-23T03:46:46ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682019-02-0165210410910.17221/473/2018-PSEpse-201902-0008Moss-dominated biological soil crusts improve stability of soil organic carbon on the Loess Plateau, ChinaXueqin Yang0Mingxiang Xu1Yunge Zhao2Liqian Gao3Shanshan Wang4College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, P.R. ChinaState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, P.R. ChinaState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, P.R. ChinaCollege of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, P.R. ChinaState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, P.R. ChinaThe succession of biological soil crust (biocrust) may alter soil organic carbon (SOC) stability by affecting SOC fractions in arid and semi-arid regions. In the study, the SOC fractions were measured including soil easily oxidizable carbon (SEOC), soil microbial biomass carbon (SMBC), soil water soluble carbon (SWSC), and soil mineralizable carbon (SMC) at the Loess Plateau of China by using four biocrusts. The results show that SOC fractions in the biocrust layer were consistently higher than that in the subsoil layers. The average SOC content of moss crust was approximately 1.3-2.0 fold that of three other biocrusts. Moss crusts contain the lowest ratio of SEOC to SOC compared with other biocrusts. The ratio of SMC to SOC was the highest in light cyanobacteria biocrust and the lowest in moss crust, but no difference was observed in SMBC to SOC and SWSC to SOC in biocrust layers among four studied biocrusts. The results show that the moss crusts increase the accumulation of organic carbon into soil and reduce the ratio of SEOC to SOC and SMC to SOC. Together, these findings indicate that moss crusts increase the SOC stability and have important implications that SOC fractions and mineralization amount are good indicators for assessing the SOC stability.https://pse.agriculturejournals.cz/artkey/pse-201902-0008_moss-dominated-biological-soil-crusts-improve-stability-of-soil-organic-carbon-on-the-loess-plateau-china.phpbiocrust typesoil layermoss coveragecarbon fractions |
| spellingShingle | Xueqin Yang Mingxiang Xu Yunge Zhao Liqian Gao Shanshan Wang Moss-dominated biological soil crusts improve stability of soil organic carbon on the Loess Plateau, China Plant, Soil and Environment biocrust type soil layer moss coverage carbon fractions |
| title | Moss-dominated biological soil crusts improve stability of soil organic carbon on the Loess Plateau, China |
| title_full | Moss-dominated biological soil crusts improve stability of soil organic carbon on the Loess Plateau, China |
| title_fullStr | Moss-dominated biological soil crusts improve stability of soil organic carbon on the Loess Plateau, China |
| title_full_unstemmed | Moss-dominated biological soil crusts improve stability of soil organic carbon on the Loess Plateau, China |
| title_short | Moss-dominated biological soil crusts improve stability of soil organic carbon on the Loess Plateau, China |
| title_sort | moss dominated biological soil crusts improve stability of soil organic carbon on the loess plateau china |
| topic | biocrust type soil layer moss coverage carbon fractions |
| url | https://pse.agriculturejournals.cz/artkey/pse-201902-0008_moss-dominated-biological-soil-crusts-improve-stability-of-soil-organic-carbon-on-the-loess-plateau-china.php |
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