Carbon Pool Dynamic and Soil Microbial Respiration Affected by Land Use Alteration: A Case Study in Humid Subtropical Area
Alterations of soil characteristics frequently accompany adaptations of pristine areas to different land uses, and these shifts have an impact on the overall ecosystem. Soil carbon stores and atmospheric CO<sub>2</sub> emissions are directly affected by those adaptations in farming manag...
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MDPI AG
2023-02-01
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| Series: | Land |
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| Online Access: | https://www.mdpi.com/2073-445X/12/2/459 |
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| author | Mohammad Ghorbani Elnaz Amirahmadi Petr Konvalina Jan Moudrý Marek Kopecký Trong Nghia Hoang |
| author_facet | Mohammad Ghorbani Elnaz Amirahmadi Petr Konvalina Jan Moudrý Marek Kopecký Trong Nghia Hoang |
| author_sort | Mohammad Ghorbani |
| collection | DOAJ |
| description | Alterations of soil characteristics frequently accompany adaptations of pristine areas to different land uses, and these shifts have an impact on the overall ecosystem. Soil carbon stores and atmospheric CO<sub>2</sub> emissions are directly affected by those adaptations in farming management and land usage. To comprehend the mechanisms involved in the carbon pool, this study was conducted in a subtropical region by considering six contiguous land uses; pasture, rice land, kiwi orchard, tea land, woodland, and uncultivated land. A CO<sub>2</sub> trap was used to quantify CO<sub>2</sub> emissions for six weeks, and the obtained data were used to analyze CO<sub>2</sub> respiration. In comparison to other land uses, the pasture and woodland showed the best results in soil microbial respiration (SMR), significantly higher than other land uses, with values of 2561.2 and 2334.8 mg CO<sub>2</sub>-C kg<sup>−1</sup> soil, respectively. Tea land and uncultivated land demonstrated considerably increased microbial metabolic quotients (MMQ) compared to other land uses. Whereas with an increase in soil depth, the MMQ significantly increased in tea and uncultivated lands, other land uses did not show significant changes with depth. Compared to other land uses, pasture, and forest areas boosted soil organic carbon (SOC) and microbial biomass carbon (MBC) both in the top and subsoil. It is reasonable to assume that the amount of SOC and MBC in the soil significantly dropped when the land was converted from pasture and woodland to other land uses. |
| first_indexed | 2024-03-11T08:33:57Z |
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| id | doaj.art-c43a7aadef1845a79db0607efc0c67e1 |
| institution | Directory Open Access Journal |
| issn | 2073-445X |
| language | English |
| last_indexed | 2024-03-11T08:33:57Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Land |
| spelling | doaj.art-c43a7aadef1845a79db0607efc0c67e12023-11-16T21:37:37ZengMDPI AGLand2073-445X2023-02-0112245910.3390/land12020459Carbon Pool Dynamic and Soil Microbial Respiration Affected by Land Use Alteration: A Case Study in Humid Subtropical AreaMohammad Ghorbani0Elnaz Amirahmadi1Petr Konvalina2Jan Moudrý3Marek Kopecký4Trong Nghia Hoang5Department of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 370 05 Ceske Budejovice, Czech RepublicDepartment of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 370 05 Ceske Budejovice, Czech RepublicDepartment of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 370 05 Ceske Budejovice, Czech RepublicDepartment of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 370 05 Ceske Budejovice, Czech RepublicDepartment of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 370 05 Ceske Budejovice, Czech RepublicDepartment of Agroecosystems, Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Branišovská 1645/31A, 370 05 Ceske Budejovice, Czech RepublicAlterations of soil characteristics frequently accompany adaptations of pristine areas to different land uses, and these shifts have an impact on the overall ecosystem. Soil carbon stores and atmospheric CO<sub>2</sub> emissions are directly affected by those adaptations in farming management and land usage. To comprehend the mechanisms involved in the carbon pool, this study was conducted in a subtropical region by considering six contiguous land uses; pasture, rice land, kiwi orchard, tea land, woodland, and uncultivated land. A CO<sub>2</sub> trap was used to quantify CO<sub>2</sub> emissions for six weeks, and the obtained data were used to analyze CO<sub>2</sub> respiration. In comparison to other land uses, the pasture and woodland showed the best results in soil microbial respiration (SMR), significantly higher than other land uses, with values of 2561.2 and 2334.8 mg CO<sub>2</sub>-C kg<sup>−1</sup> soil, respectively. Tea land and uncultivated land demonstrated considerably increased microbial metabolic quotients (MMQ) compared to other land uses. Whereas with an increase in soil depth, the MMQ significantly increased in tea and uncultivated lands, other land uses did not show significant changes with depth. Compared to other land uses, pasture, and forest areas boosted soil organic carbon (SOC) and microbial biomass carbon (MBC) both in the top and subsoil. It is reasonable to assume that the amount of SOC and MBC in the soil significantly dropped when the land was converted from pasture and woodland to other land uses.https://www.mdpi.com/2073-445X/12/2/459carbon sequestrationland degradationsoil managementCO<sub>2</sub> emission |
| spellingShingle | Mohammad Ghorbani Elnaz Amirahmadi Petr Konvalina Jan Moudrý Marek Kopecký Trong Nghia Hoang Carbon Pool Dynamic and Soil Microbial Respiration Affected by Land Use Alteration: A Case Study in Humid Subtropical Area Land carbon sequestration land degradation soil management CO<sub>2</sub> emission |
| title | Carbon Pool Dynamic and Soil Microbial Respiration Affected by Land Use Alteration: A Case Study in Humid Subtropical Area |
| title_full | Carbon Pool Dynamic and Soil Microbial Respiration Affected by Land Use Alteration: A Case Study in Humid Subtropical Area |
| title_fullStr | Carbon Pool Dynamic and Soil Microbial Respiration Affected by Land Use Alteration: A Case Study in Humid Subtropical Area |
| title_full_unstemmed | Carbon Pool Dynamic and Soil Microbial Respiration Affected by Land Use Alteration: A Case Study in Humid Subtropical Area |
| title_short | Carbon Pool Dynamic and Soil Microbial Respiration Affected by Land Use Alteration: A Case Study in Humid Subtropical Area |
| title_sort | carbon pool dynamic and soil microbial respiration affected by land use alteration a case study in humid subtropical area |
| topic | carbon sequestration land degradation soil management CO<sub>2</sub> emission |
| url | https://www.mdpi.com/2073-445X/12/2/459 |
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