Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine Forest
[Objective] Soil microbial metabolic efficiency profoundly affects soil nutrient cycling and soil carbon sequestration in the recovery process of eroded and degraded areas. However, it is unclear how tree species mixture affects soil extracellular enzyme stoichiometry and microbial carbon-utilizatio...
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Editorial Department of Journal of Soil and Water Conservation
2024-12-01
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| Series: | Shuitu Baochi Xuebao |
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| Online Access: | http://stbcxb.alljournal.com.cn/stbcxben/article/abstract/20240628 |
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| author | WANG Man JIANG Yongmeng ZHANG Shiliang ZHANG Jinxiu ZHENG Linmin ZENG Zhiwei LYU Maokui XIE Jinsheng |
| author_facet | WANG Man JIANG Yongmeng ZHANG Shiliang ZHANG Jinxiu ZHENG Linmin ZENG Zhiwei LYU Maokui XIE Jinsheng |
| author_sort | WANG Man |
| collection | DOAJ |
| description | [Objective] Soil microbial metabolic efficiency profoundly affects soil nutrient cycling and soil carbon sequestration in the recovery process of eroded and degraded areas. However, it is unclear how tree species mixture affects soil extracellular enzyme stoichiometry and microbial carbon-utilization efficiency in single Pinus massoniana plantation in the eroded red soil area. [Methods] In this study, we used single P. massoniana plantation, and P. massoniana and Schima superba mixed plantation with different restoration years, determined the soil physicochemical properties, extracellular enzyme activity and phospholipid fatty acid markers of different forests, and calculated the soil enzyme stoichiometric ratio and microbial carbon-utilization efficiency (CUE). [Results] (1) With the increase of restoration years, soil acid phosphatase (AP) and β-glucosidase (βG) activities were significantly reduced, while C∶NEEA (βG∶NAG), vector length (VL) and vector angle (VA) of the mixed forest were lower than that of pure forest, while C∶PEEA (βG∶AP) and N∶PEEA (NAG∶AP) showed the opposite trend, indicating that long-term mixing is beneficial to alleviate the carbon limitation and phosphorus limitation of microorganisms. (2) Mixing was beneficial to improve CUE and significantly increased with the increase of forest age. Specifically, compared with that of Y39-CF and Y19-MF, CUE of Y39-MF significantly increased by 200.00% and 136.84%, respectively. (3) By analyzing the characteristics of soil enzyme activity and the relationship between CUE and environmental factors, it was found that soil carbon, nitrogen and phosphorus availability was an important influencing factor, mainly affecting AP activity, C∶PEEA, N∶PEEA, VL, VA and CUE, while the stoichiometric ratio of soil nutrients mainly affected βG activity and C∶NEEA. (4) The results of redundancy analysis (RDA) showed that the ratio of fungi and bacteria mainly affected the characteristics of soil enzyme activity and CUE in the mixed forest, while the main influencing factors in pure forest were actinomyces and Gram-negative bacteria. [Conclusion] Mixing tree species significantly improves forest soil nutrients, affects the release of soil extracellular enzymes, and improves CUE, and it is conducive to soil carbon sequestration. Therefore, the differences between pure forest and secondary forest should be considered in future management and research of P. massoniana forest. |
| format | Article |
| id | doaj-art-9fc64ee916854fe0837b8fa491c41dc9 |
| institution | Kabale University |
| issn | 1009-2242 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Editorial Department of Journal of Soil and Water Conservation |
| record_format | Article |
| series | Shuitu Baochi Xuebao |
| spelling | doaj-art-9fc64ee916854fe0837b8fa491c41dc92025-02-10T07:24:20ZzhoEditorial Department of Journal of Soil and Water ConservationShuitu Baochi Xuebao1009-22422024-12-0138626427210.13870/j.cnki.stbcxb.2024.06.0301009-2242-(2024)06-0264-09Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine ForestWANG Man0JIANG Yongmeng1ZHANG Shiliang2ZHANG Jinxiu3ZHENG Linmin4ZENG Zhiwei5LYU Maokui6XIE Jinsheng7College of Geographical Science, Fujian Normal University, Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, ChinaCollege of Geographical Science, Fujian Normal University, Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, ChinaCollege of Geographical Science, Fujian Normal University, Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, ChinaCollege of Geographical Science, Fujian Normal University, Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, ChinaCollege of Geographical Science, Fujian Normal University, Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, ChinaCollege of Geographical Science, Fujian Normal University, Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, ChinaCollege of Geographical Science, Fujian Normal University, Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, ChinaCollege of Geographical Science, Fujian Normal University, Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, China[Objective] Soil microbial metabolic efficiency profoundly affects soil nutrient cycling and soil carbon sequestration in the recovery process of eroded and degraded areas. However, it is unclear how tree species mixture affects soil extracellular enzyme stoichiometry and microbial carbon-utilization efficiency in single Pinus massoniana plantation in the eroded red soil area. [Methods] In this study, we used single P. massoniana plantation, and P. massoniana and Schima superba mixed plantation with different restoration years, determined the soil physicochemical properties, extracellular enzyme activity and phospholipid fatty acid markers of different forests, and calculated the soil enzyme stoichiometric ratio and microbial carbon-utilization efficiency (CUE). [Results] (1) With the increase of restoration years, soil acid phosphatase (AP) and β-glucosidase (βG) activities were significantly reduced, while C∶NEEA (βG∶NAG), vector length (VL) and vector angle (VA) of the mixed forest were lower than that of pure forest, while C∶PEEA (βG∶AP) and N∶PEEA (NAG∶AP) showed the opposite trend, indicating that long-term mixing is beneficial to alleviate the carbon limitation and phosphorus limitation of microorganisms. (2) Mixing was beneficial to improve CUE and significantly increased with the increase of forest age. Specifically, compared with that of Y39-CF and Y19-MF, CUE of Y39-MF significantly increased by 200.00% and 136.84%, respectively. (3) By analyzing the characteristics of soil enzyme activity and the relationship between CUE and environmental factors, it was found that soil carbon, nitrogen and phosphorus availability was an important influencing factor, mainly affecting AP activity, C∶PEEA, N∶PEEA, VL, VA and CUE, while the stoichiometric ratio of soil nutrients mainly affected βG activity and C∶NEEA. (4) The results of redundancy analysis (RDA) showed that the ratio of fungi and bacteria mainly affected the characteristics of soil enzyme activity and CUE in the mixed forest, while the main influencing factors in pure forest were actinomyces and Gram-negative bacteria. [Conclusion] Mixing tree species significantly improves forest soil nutrients, affects the release of soil extracellular enzymes, and improves CUE, and it is conducive to soil carbon sequestration. Therefore, the differences between pure forest and secondary forest should be considered in future management and research of P. massoniana forest.http://stbcxb.alljournal.com.cn/stbcxben/article/abstract/20240628mixed tree speciesrestoration timemicrobiological extracellular enzymesthe enzyme stoichiometry |
| spellingShingle | WANG Man JIANG Yongmeng ZHANG Shiliang ZHANG Jinxiu ZHENG Linmin ZENG Zhiwei LYU Maokui XIE Jinsheng Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine Forest Shuitu Baochi Xuebao mixed tree species restoration time microbiological extracellular enzymes the enzyme stoichiometry |
| title | Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine Forest |
| title_full | Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine Forest |
| title_fullStr | Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine Forest |
| title_full_unstemmed | Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine Forest |
| title_short | Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine Forest |
| title_sort | effects of mixing tree species on soil enzyme activity and carbon use efficiency in eroded masson pine forest |
| topic | mixed tree species restoration time microbiological extracellular enzymes the enzyme stoichiometry |
| url | http://stbcxb.alljournal.com.cn/stbcxben/article/abstract/20240628 |
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