LI Yang,NIU Yonghua,ZHAO Lu.Function of Biological Crust in Soil Remediation in Fenhe River Basin[J].Northern Horticulture,2021,(14):100-106.[doi:10.11937/bfyy.20204176]
汾河流域修复中土壤生物结皮的功能研究
- Title:
- Function of Biological Crust in Soil Remediation in Fenhe River Basin
- Keywords:
- biological soil crust; physical and chemical properties of soil; soil enzyme activity; DGGE; dominant genus
- 文献标志码:
- A
- 摘要:
- 以汾河上游混交林系统为研究对象，测定了不同林地有无结皮条件下的土壤理化性质和5种酶活性，采用DGGE试验研究了藓结皮对土壤真菌和细菌的影响，测序比对确定了真菌细菌中的优势菌属，以期掌握生物土壤结皮对汾河上游土壤恢复的作用。结果表明：藓结皮提高了土壤的田间持水量、有机碳、全氮及全磷的含量和土壤蔗糖酶、脲酶、过氧化氢酶、多酚氧化酶和碱性磷酸酶的活性，同时增加了土壤真菌细菌的复杂性，测序比对表明根瘤菌属、硝化螺旋菌属和酸杆菌属是细菌的优势菌属，丝盖伞属和锥毛壳属是真菌的优势菌属。生物土壤结皮在汾河土壤恢复中起到了重要的作用。
- Abstract:
- Taking the regional mixed forest system in the upper reaches of Fenhe River as the research object,the soil physical and chemical properties and five kinds of enzyme activities with or without crusts under different forest conditions were determined.The effects of moss crusts on soil fungi and bacteria were studied by DGGE experiment,and the dominant bacteria were determined by sequencing.The results showed that moss crusts increased the soil water capacity,organic carbon,total nitrogen and total phosphorus contents,and the activities of sucrase,urease,catalase,polyphenol oxidase and alkaline phosphatase,and increased the complexity of soil fungal bacteria Spirochetes and acidobacteria are the dominant genera of bacteria,while fimbria and Chaetomium are the dominant genera of fungi.Biological soil crust plays an important role in soil restoration of Fenhe River.
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备注/Memo
第一作者简介：李扬（1985-），女，博士，副教授，现主要从事生态环境修复等研究工作。E-mail：376227985@qq.com.责任作者：赵璐（1986-），女，博士，副教授，现主要从事水土资源与环境等研究工作。E-mail：xxjswlh@qq.com.基金项目：国家重点研发计划资助项目(2016YFC0400206);国家自然科学基金资助项目(51779161);2020年山西省重大科研资助项目。收稿日期：2020-09-26