| 会仙岩溶湿地、稻田与旱地土壤细菌群落结构特征比较 |
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| 引用本文： | 贾远航,靳振江,袁武,程跃扬,邱江梅,梁锦桃,潘复静,刘德深.会仙岩溶湿地、稻田与旱地土壤细菌群落结构特征比较[J].环境科学,2019,40(7):3313-3323. |
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| 作者姓名： | 贾远航 靳振江 袁武 程跃扬 邱江梅 梁锦桃 潘复静 刘德深 |
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| 作者单位： | 桂林理工大学环境科学与工程学院,桂林,541004;桂林理工大学环境科学与工程学院,桂林541004;桂林理工大学岩溶地区水污染控制与用水安全保障协同创新中心,桂林541004;桂林理工大学广西矿冶与环境科学实验中心,桂林541004;桂林理工大学广西环境污染控制理论与技术重点实验室,桂林541004 |
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| 基金项目： | 国家自然科学基金项目（41867008，41361054）；广西自然科学基金项目（2018GXNSFAA281247）；桂林理工大学博士启动基金项目（GUTQDJJ2004041） |
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| 摘 要： | 为了探究土地利用变化对湿地系统土壤细菌的影响,以会仙天然湿地、稻田和旱地这3种土地利用方式的耕层土壤(0～20cm)作为研究对象,利用高通量测序技术对土壤细菌群落的α多样性、物种组成和丰度进行分析,并结合土壤理化性质探讨影响细菌群落结构的环境因素.结果表明,会仙湿地系统土壤中存在的细菌隶属于49个门和145个纲.其中,稻田土壤细菌的Shannon指数显著较高;天然湿地土壤细菌的Simpson指数显著较低.在会仙湿地系统土壤的优势菌门(operational taxonomic units,OTUs 1%)中,天然湿地的优势菌门为变形菌门(52. 15%)、放线菌门(15. 16%)和酸杆菌门(8. 80%);稻田的优势菌门为变形菌门(45. 79%)、酸杆菌门(17. 20%)和绿弯菌门(11. 75%);旱地的优势菌门为变形菌门(51. 42%)、酸杆菌门(15. 51%)和绿弯菌门(7. 43%).在优势菌纲(OTUs 1%)中,天然湿地的优势菌纲为α-变形菌纲(17. 98%)、β-变形菌纲(13. 72%)和放线菌纲(13. 13%);稻田的优势菌纲为酸杆菌纲(14. 35%)、β-变形菌纲(13. 37%)和δ-变形菌纲(12. 02%);旱地的优势菌纲为α-变形菌纲(19. 44%)、β-变形菌纲(13. 30%)和酸杆菌纲(13. 03%).在优势的OTUs中( 0. 3%),天然湿地的优势菌属是Sphingomonas(OTU2和59)、Micromonospora(OTU5、24和50487)、Gemmatimonas(OTU1)和Stenotrophomonas(OTU8);稻田的优势菌属是Lysobacter(OTU4和115)和Aquabacterium(OTU33);旱地的优势菌属是Sphingomonas(OTU85、157和2916)、Rhodanobacter(OTU19和52)和Phenlobacterium(OTU60).聚类热图分析显示,3种土地利用下的土壤细菌群落结构差异极其显著.冗余分析结果显示,土壤细菌分布差异主要与p H、土壤总有机碳(SOC)、全氮(TN)、碱解氮(AN)、交换性镁、交换性钙、可溶性有机碳(DOC)和速效磷(AP)等生态因子显著相关(P 0. 05).以上研究结果表明,土地利用方式变化能显著改变会仙湿地土壤的细菌群落结构.
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| 关 键 词： | 岩溶湿地 土地利用 细菌 群落结构 高通量测序技术 |
| 收稿时间： | 2018/11/7 0:00:00 |
| 修稿时间： | 2019/2/16 0:00:00 |
Comparison of Soil Bacterial Community Structure Between Paddy Fields and Dry Land in the Huixian Karst Wetland, China |
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| JIA Yuan-hang,JIN Zhen-jiang,YUAN Wu,CHENG Yue-yang,QIU Jiang-mei,LIANG Jin-tao,PAN Fu-jing and LIU De-shen.Comparison of Soil Bacterial Community Structure Between Paddy Fields and Dry Land in the Huixian Karst Wetland, China[J].Chinese Journal of Environmental Science,2019,40(7):3313-3323. |
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| Authors: | JIA Yuan-hang JIN Zhen-jiang YUAN Wu CHENG Yue-yang QIU Jiang-mei LIANG Jin-tao PAN Fu-jing and LIU De-shen |
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| Institution: | College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China,College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China;Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin 541004, China;Guangxi Scientific Experiment Center of Mining, Metallurgy and Environment, Guilin 541004, China;Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China,College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China,College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China,College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China,College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China,College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China;Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin 541004, China;Guangxi Scientific Experiment Center of Mining, Metallurgy and Environment, Guilin 541004, China;Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China and College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China;Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin 541004, China;Guangxi Scientific Experiment Center of Mining, Metallurgy and Environment, Guilin 541004, China;Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China |
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| Abstract: | |
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| Keywords: | karst wetland land-use bacteria community structure high-throughput sequencing technology |
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