干旱区生态环境知识资源中心(Arid): 呼伦贝尔沙地不同固沙植物土壤真菌群落组成及多样性

Arid

	呼伦贝尔沙地不同固沙植物土壤真菌群落组成及多样性
其他题名	Composition and diversity of soil fungi community under different sand-fixing plants in the Hulun Buir Desert
	闫茹; 冯薇; 王玺婧
来源期刊	中国水土保持科学
ISSN	2096-2673
出版年	2021
卷号	19 期号:1
中文摘要	探究呼伦贝尔沙地3种固沙植物下土壤真菌群落结构、多样性及其影响因素,明晰不同固沙植物下土壤真菌的优势类群,为确定呼伦贝尔沙地植被恢复建设中的最优固沙树种提供科学依据。选择分别以差巴嘎蒿、小叶锦鸡儿和樟子松为优势种的植被恢复区的土壤真菌为研究对象,采用野外调查和18SrRNA高通量测序技术 ,分析比较不同固沙植物下土壤真菌群落结构特征。呼伦贝尔沙地土壤优势真菌门为子囊菌门,其相对丰度在3种植物下均> 65%,其他优势门包括接合菌门、壶菌门、担子菌门、隐真菌门和球囊菌门。优势真菌纲为座囊菌纲、壶菌纲、盘菌纲、粪壳菌纲、伞菌纲、散囊菌纲和球囊菌纲。优势真菌属为在踝节菌属、毛壳菌属、Boeremia、Paraphaeosphaeria 、旋孢腔菌属、毛霉属、假裸囊菌属、Fimicolochytrium和乳牛肝菌属。不同固沙植物间土壤真菌种类无显著差异,而土壤真菌的相对丰度有显著差异,其中樟子松下相对丰度较高的盘菌纲、散囊菌纲、毛壳菌属和踝节菌属具有促进土壤碳循环和磷循环的特征,且樟子松下具有较高的磷酸酶和过氧化氢酶活性。植物种类是影响土壤真菌群落结构的主要因素,土壤有机碳和速效磷是解释土壤真菌群落结构的主要环境因子。呼伦贝尔沙地不同固沙植物通过改变土壤真菌的相对丰度来改变土壤真菌群落结构。从土壤真菌角度来看,呼伦贝尔沙地中樟子松在固定移动沙丘和提高土壤肥力方面是最适宜的树种。
英文摘要	[Background]This paper explored the community structure and diversity of soil fungi under three sand-fixing plants in Hulun Buir Desert,clarified the dominant groups of soil fungi,and provides a scientific basis for determining the optimal sand fixation species for rebuilding degraded sandland ecosystems.[Method]Effects of Artemisia halodendron-,Caragana microphylla-,or Pinus sylvestris var. mongolica-dominated vegetation on fungal community structures and diversity in the Hulun Buir Desert were determined using field investigation and high-throughput 18SrRNA gene sequencing. [Results]The phyla Ascomycota accounted for more than 65% of the fungal sequences in the three vegetation. Additional dominant phyla including Zygomycota,Chytridiomycota,Basidiomycota,Cryptomycota and Glomeromycota were also in all soil sampling. The dominant classes of soil fungi were Dothideomycetes, Chytridiomycetes, Pezizomycetes, Sordariomycetes, Agaricomycetes, Eurotiomycetes and Glomeromycetes. The dominant genera of soil fungi were Talaromyces, Chaetomium, Boeremia, Paraphaeosphaeria,Cochliobolus,Mucor,Pseudogymnoascus,Fimicolochytrium and Suillus. There was no significant difference in soil fungi species among different vegetation,but the relative abundance of soil fungi varied. Compared with other vegetation,P. sylvestris var. mongolica exhibited a higher relative abundance of Pezizomycetes,Eurotiomycetes,Chaetomium and Talaromyces,which had the characteristics of promoting soil carbon cycle and phosphorus cycle. The activity values of phosphatase and catalase were significantly higher in P. sylvestris var. mongolica. Vegetation species were the main impact factors causing shifts in the soil fungal community. Soil organic carbon and available phosphorus were the main environmental factors to explain the structure of the soil fungal community. [Conclusions] The application of different vegetation in degraded lands alters the fungal community structure through changing their relative abundance. P. sylvestris var. mongolica was the most suitable species in fixing mobile dunes and improving soil fertility more than the three other species in Hulun Buir Desert.
中文关键词	固沙植被 ; 土壤真菌 ; 群落结构 ; 呼伦贝尔沙地
英文关键词	sand-fixing plants soil fungi community structure Hulun Buir Desert
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Forestry
CSCD记录号	CSCD:6926608
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354610
作者单位	闫茹, 北京林业大学水土保持学院, 宁夏盐池毛乌素沙地生态系统国家定位观测研究站, 北京 100083, 中国. 冯薇, 北京林业大学水土保持学院;;北京林业大学, 宁夏盐池毛乌素沙地生态系统国家定位观测研究站;;水土保持国家林业局重点实验室, ;;, 北京;;北京 100083;;100083, 中国. 王玺婧, 北京农业职业学院, 北京 102442, 中国.
推荐引用方式 GB/T 7714	闫茹,冯薇,王玺婧. 呼伦贝尔沙地不同固沙植物土壤真菌群落组成及多样性[J],2021,19(1).
APA	闫茹,冯薇,&王玺婧.(2021).呼伦贝尔沙地不同固沙植物土壤真菌群落组成及多样性.中国水土保持科学,19(1).
MLA	闫茹,et al."呼伦贝尔沙地不同固沙植物土壤真菌群落组成及多样性".中国水土保持科学 19.1(2021).