Natural vegetation regeneration facilitated soil organic carbon sequestration and microbial community stability in the degraded karst ecosystem
文献类型： 外文期刊
作者： Cheng, Hanting 1 ; Zhou, Xiaohui 1 ; Dong, Rongshu 4 ; Wang, Xiaomin 5 ; Liu, Guodao 4 ; Li, Qinfen 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Peoples R China
2.Hainan Danzhou Trop Agroecosyst Natl Observat & R, Danzhou 57173, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Low carbon Green Agr Trop Reg China, Beijing, Peoples R China
4.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou 571101, Hainan, Peoples R China
5.Guizhou Acad Agr Sci, Inst Subtrop Crops, Xingyi 562400, Guizhou, Peoples R China
6.Hainan Prov Key Lab Trop Ecocycle Agr, Haikou 571101, Hainan, Peoples R China
7.Natl Agr Expt Stn Agr Environm, Danzhou 571737, Hainan, Peoples R China
8.Natl Long term Expt Stn Agr Green Dev, Danzhou 571737, Hainan, Peoples R China
关键词： Restoration strategies; Labile SOC fractions; Soil microbial communities; Degraded karst ecosystem
期刊名称：CATENA （ 影响因子：6.2； 五年影响因子：6.4 ）
ISSN： 0341-8162
年卷期： 2023 年 222 卷
页码：
收录情况： SCI
摘要： Vegetation restoration is an effective strategy for sequestering soil organic carbon (SOC) and restoring degraded ecosystems. However, the effects of different restoration strategies on SOC quantity and quality and the underlying microbial response mechanisms in a karst region of southwest China remain unclear. This study quantified soil physicochemical properties, soil labile SOC fractions (dissolved organic carbon (DOC), microbial biomass carbon (MBC), light fraction organic carbon (LFOC), coarse particulate organic carbon (CPOC), and fine particulate organic carbon (FPOC)), and the abundances, alpha-diversities, and compositions of bacterial and fungal communities under afforestation (Macadamia ternifolia F. Muell. and Mangifera indica L.) and natural regeneration (grassland and secondary forest), using maize field as the reference. Compared to afforestation, under natural regeneration the SOC and soil moisture content (SMC) increased by 80.3% and 21.7%, respectively, and pH decreased by 0.35, and labile SOC fractions (DOC, MBC, LFOC, CPOC, and FPOC) increased by 72.2%- 172.0%, indicating that natural regeneration facilitated SOC sequestration, especially for labile SOC fractions. Phospholipid fatty acid analysis indicated that natural regeneration and afforestation significantly (p < 0.05) increased bacterial and fungal abundances and altered community compositions. Moreover, the natural regeneration co-occurrence network was more complex and stable than that of afforestation. Redundancy analysis and structural equation modeling indicated that variations in bacterial and fungal composition were primarily driven by soil C/N, available nutrient, pH, particulate organic carbon, and MBC. Overall, these findings suggest that natural regeneration is a promising restoration strategy for sequestering labile SOC and maintaining bacterial and fungal community stability. Additionally, soil properties and labile SOC fractions may coregulate microbial community changes following vegetation restoration in this karst region.
- 相关文献
作者其他论文 更多>>
-
First report of Leucobacter aridicollis causes leaf spot disease on Dendrobium officinale in Guizhou Province, China
作者：Li, Ruotong;Hu, Ke;Ding, Yi;Liao, Xun;Li, Ming;Li, Rongyu;Li, Ruotong;Hu, Ke;Ding, Yi;Liao, Xun;Li, Ming;Li, Rongyu;Wang, Xiaomin;Zhou, Yufei
关键词：Dendrobium officinale; Leaf spot disease; Leucobacter aridicollis; Pathogen
-
Safe Production Strategies for Soil-Covered Cultivation of Morel in Heavy Metal-Contaminated Soils
作者：Li, Xue;Fu, Tianhong;Li, Wendi;Zhang, Yujin;Li, Xue;Fu, Tianhong;Zhang, Bangxi;Wang, Xiaomin;Zhang, Qinyu;Yang, Rende;Li, Hongzhao;Li, Hongzhao;Zhang, Baige;Wang, Jie;Chen, Qing;He, Xuehan;Chen, Hao;Peng, Yutao
关键词：heavy metals; mitigation strategies; morel; mushroom; soil remediation
-
Impact of biochars fabricated with typical feedstocks on soil environment and crop productivity: A case study with D. rubrovolvata
作者：Fu, Tianhong;Li, Xue;Li, Wendi;Zhang, Yujin;Fu, Tianhong;Li, Xue;Li, Wendi;Tang, Ling;Wang, Xiaomin;Zhang, Qinyu;Yang, Zhen;Zhang, Bangxi;Lei, Fengwen;Zhang, Baige;Peng, Yutao;Peng, Yutao;Peng, Yutao;Zhang, Bangxi;Peng, Yutao
关键词：agricultural wastes; biochar; D. rubrovolvata; soil quality
-
Effects of Critical Operation and Cleaning Parameters on Performances and Economic Benefits of Biogas Slurry Concentration by Forward Osmosis Membrane
作者：Zhang, Bangxi;Zhang, Qinyu;Wang, Xiaomin;Tang, Ling;Wei, Quanquan;Fu, Tianhong;Li, Yun;Peng, Yutao
关键词：biogas slurry; forward osmosis; membrane fouling; optimization; membrane cleaning
-
Insights into Opposite and Positive Effects of Biochar and Organic Fertilizer on Red Soil Properties and Growth of Pennisetum giganteum
作者：Zhang, Bangxi;Li, Xue;Fu, Tianhong;Li, Wendi;Zhang, Qinyu;Wang, Jie;Chen, Bo;Yang, Rende;Wang, Xiaomin;Li, Xue;Fu, Tianhong;Li, Wendi;Zhang, Yujin;Li, Hongzhao;Wang, Jie;Zhang, Baige;He, Xuehan;Chen, Hao;Peng, Yutao
关键词：biochar; organic fertilizer; Pennisetum giganteum; soil; enzymatic activity; microbial community
-
Typical JUNCAO Overwintering Performance and Optimized Cultivation Conditions of Pennisetum sp. in Guizhou, Southwest China
作者：Zhu, Senlin;Zhang, Qinyu;Yang, Rende;Chen, Bo;Zhang, Bangxi;Yang, Zhen;Chen, Xu;Wang, Xiaomin;Du, Muyun;Tang, Ling
关键词：ecology; green manure; landscape; mountain; orchard
-
Priming of soil organic carbon mineralization and its temperature sensitivity in response to vegetation restoration in a karst area of Southwest China
作者：Cheng, Hanting;Zhou, Xiaohui;Li, Qinfen;Dong, Rongshu;Liu, Guodao;Wang, Xiaomin;Cheng, Hanting;Zhou, Xiaohui;Li, Qinfen;Cheng, Hanting;Zhou, Xiaohui;Li, Qinfen
关键词：SOM mineralization; Priming effect; Q(10); Microbial composition and diversity; Co-occurrence networks; Structural equation modeling
