Response of Functional Diversity of Soil Microbial Community to Forest Cutting and Regeneration Methodology in a Chinese Fir Plantation
With the expansion of pure forest planting area and the increase in the number of rotations used, soil activity and plant productivity have significantly reduced. The functional diversity of soil microorganisms plays a vital role in forest health and the long-term maintenance of productivity. Though...
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MDPI AG
2022-02-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/13/2/360 |
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| author | Xu Wang Shenghua Gao Jiquan Chen Zengwang Yao Lei Zhang Hailong Wu Qi Shu Xudong Zhang |
| author_facet | Xu Wang Shenghua Gao Jiquan Chen Zengwang Yao Lei Zhang Hailong Wu Qi Shu Xudong Zhang |
| author_sort | Xu Wang |
| collection | DOAJ |
| description | With the expansion of pure forest planting area and the increase in the number of rotations used, soil activity and plant productivity have significantly reduced. The functional diversity of soil microorganisms plays a vital role in forest health and the long-term maintenance of productivity. Though the optimization of forest cutting and regeneration methodologies is necessary to improve the functional diversity of soil microorganisms, the effects of harvest residual treatment on the functional diversity of soil microorganisms remain unclear. During the period 2018–2020, we designed four harvest residual treatments—reference (RF), residual burning (RB), crushing and mulching (MT), and no residuals (NR)—to determine soil physical and chemical properties. We also used microbial biomass (MB) to evaluate the diversity in carbon source metabolism of soil microorganisms through Biolog microplate technology, and discussed the response mechanism of microbial functional diversity to the different forest cutting and regeneration methodologies used in Chinese fir plantations. The results indicated that RB significantly increased the carbon metabolic capacity of the microbial community, the community richness, and its dominance compared to RF, MT, and NR; however, they also showed that it decreased the uniformity of the soil microbial community. NR showed a poor carbon utilization capacity for microorganisms compared to RF and MT, while MT significantly increased the utilization capacity of carbohydrate and amino acid carbon compared with RF. Soil nutrients were the main driving factors of soil microbial carbon metabolic activity, and the different responses of microbial functional diversity to various forest cutting and regeneration methodologies were mainly due to the variation in the nutrient inputs of harvest residues. This study provides a practical basis for enhancing the functional diversity of soil microorganisms in plantations through the management of harvest residues. |
| first_indexed | 2024-03-09T21:56:16Z |
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| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-09T21:56:16Z |
| publishDate | 2022-02-01 |
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| series | Forests |
| spelling | doaj.art-f6050e93ebe04383900cb452b1eb58ba2023-11-23T19:58:19ZengMDPI AGForests1999-49072022-02-0113236010.3390/f13020360Response of Functional Diversity of Soil Microbial Community to Forest Cutting and Regeneration Methodology in a Chinese Fir PlantationXu Wang0Shenghua Gao1Jiquan Chen2Zengwang Yao3Lei Zhang4Hailong Wu5Qi Shu6Xudong Zhang7Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, ChinaResearch Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, ChinaCenter for Global Change and Earth Observations (CGCEO), Department of Geography, Environment, and Spatial Sciences, Michigan State University, East Lansing, MI 48823, USAResearch Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, ChinaResearch Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, ChinaResearch Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, ChinaResearch Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, ChinaResearch Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, ChinaWith the expansion of pure forest planting area and the increase in the number of rotations used, soil activity and plant productivity have significantly reduced. The functional diversity of soil microorganisms plays a vital role in forest health and the long-term maintenance of productivity. Though the optimization of forest cutting and regeneration methodologies is necessary to improve the functional diversity of soil microorganisms, the effects of harvest residual treatment on the functional diversity of soil microorganisms remain unclear. During the period 2018–2020, we designed four harvest residual treatments—reference (RF), residual burning (RB), crushing and mulching (MT), and no residuals (NR)—to determine soil physical and chemical properties. We also used microbial biomass (MB) to evaluate the diversity in carbon source metabolism of soil microorganisms through Biolog microplate technology, and discussed the response mechanism of microbial functional diversity to the different forest cutting and regeneration methodologies used in Chinese fir plantations. The results indicated that RB significantly increased the carbon metabolic capacity of the microbial community, the community richness, and its dominance compared to RF, MT, and NR; however, they also showed that it decreased the uniformity of the soil microbial community. NR showed a poor carbon utilization capacity for microorganisms compared to RF and MT, while MT significantly increased the utilization capacity of carbohydrate and amino acid carbon compared with RF. Soil nutrients were the main driving factors of soil microbial carbon metabolic activity, and the different responses of microbial functional diversity to various forest cutting and regeneration methodologies were mainly due to the variation in the nutrient inputs of harvest residues. This study provides a practical basis for enhancing the functional diversity of soil microorganisms in plantations through the management of harvest residues.https://www.mdpi.com/1999-4907/13/2/360Chinese fir plantationharvest residuesmicrobial functional diversitysoil nutrientsbiolog microplate technology |
| spellingShingle | Xu Wang Shenghua Gao Jiquan Chen Zengwang Yao Lei Zhang Hailong Wu Qi Shu Xudong Zhang Response of Functional Diversity of Soil Microbial Community to Forest Cutting and Regeneration Methodology in a Chinese Fir Plantation Forests Chinese fir plantation harvest residues microbial functional diversity soil nutrients biolog microplate technology |
| title | Response of Functional Diversity of Soil Microbial Community to Forest Cutting and Regeneration Methodology in a Chinese Fir Plantation |
| title_full | Response of Functional Diversity of Soil Microbial Community to Forest Cutting and Regeneration Methodology in a Chinese Fir Plantation |
| title_fullStr | Response of Functional Diversity of Soil Microbial Community to Forest Cutting and Regeneration Methodology in a Chinese Fir Plantation |
| title_full_unstemmed | Response of Functional Diversity of Soil Microbial Community to Forest Cutting and Regeneration Methodology in a Chinese Fir Plantation |
| title_short | Response of Functional Diversity of Soil Microbial Community to Forest Cutting and Regeneration Methodology in a Chinese Fir Plantation |
| title_sort | response of functional diversity of soil microbial community to forest cutting and regeneration methodology in a chinese fir plantation |
| topic | Chinese fir plantation harvest residues microbial functional diversity soil nutrients biolog microplate technology |
| url | https://www.mdpi.com/1999-4907/13/2/360 |
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