干旱区生态环境知识资源中心(Arid): 短花针茅荒漠草原土壤真菌群落结构对水氮控制的响应

Arid

	短花针茅荒漠草原土壤真菌群落结构对水氮控制的响应
其他题名	Response of Soil Fungal Community Structure to Water and Nitrogen Control in Stipa breviflora Desert Steppe
	闫瑾; 红梅; 叶贺; 李静; 张宇晨; 梁志伟
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2021
卷号	43 期号:10 页码:37-45
中文摘要	基于水分(自然降雨、减雨30%、增雨30%)和氮素添加[0、30、50、100kg·N/(hm~2·a)]控制试验平台,研究水分和氮素对短花针茅荒漠草原(位于内蒙古乌兰察布市四子王旗)土壤真菌群落结构的影响。结果显示,不同水氮处理下,土壤真菌群落中占优势的门类为子囊菌门(Ascomycota)(35.93%~76.19%)、被孢霉门(Mortierellomycota)( 3.21% ~43.74%)、担子菌门(Basidiomycota)(5.99% ~31.35)、球囊菌门(Glomeromycota)(1.31% ~ 10.91%)、壶菌门(Chytridiomycota)(0.23%~6.19%)、油壶菌门(Olpidiomycota)(0.13%~1.34%)。其中,子囊菌门的弯孢菌属(Curvularia)、球囊菌门的碎囊霉科(Claroideoglomeraceae)相对丰度变化最明显,可作为短花针茅荒漠草原土壤真菌群落结构变化的指示种。水分变化对土壤真菌群落丰富度有极显著影响,而水氮处理对真菌群落多样性的影响不显著。PCoA分析表明,氮添加和水分变化改变了土壤真菌群落结构。CCA分析表明,环境因子中土壤pH值、铵态氮和硝态氮含量是土壤真菌群落结构变化的主要影响因素。综上所述,水氮控制可改变土壤真菌群落结构,且两者存在明显的交互作用,水分变化影响土壤真菌群落对氮素添加的响应。
英文摘要	The effects of water and nitrogen addition on the soil fungal community structure of Stipa breviflora desert steppe(located in Siziwang Banner, Wulanchabu City, Inner Mongolia)were studied in the experimental platform, in which three water addition treatments(natural rainfall, 30% rain reduction and 30% rain increase)and four nitrogen addition treatments [0, 30, 50 and 100 kg·N/(hm~2·a)] were included.The results showed that the dominant phyla in soil fungal community were Ascomycota(35.93%~ 76.19%), Mortierellomycota(3.21%~43.74%), Basidiomycota(5.99%~31.35%), Glomeromycota(1.31%~10.91%), Chytridiomycota(0.23%~6.19%), and Olpidiomycota(0.13%~1.34%)under different water and nitrogen addition treatments, in which the change of relative abundance of Curvularia of Ascomycota and Claroideoglomeraceae of Glomeromycota were the most significant, considering as indicator species for changes in soil fungal community structure in S.breviflora desert steppe.Moreover, precipitation changes had a significant impact on the richness of soil fungal community, while the interaction of water and nitrogen addition had no effect on the diversity of fungal community.PCoA analysis showed that nitrogen and water addition treatments altered the soil fungal community structure.CCA analysis showed that soil pH value, ammonium nitrogen and nitrate nitrogen contents were the main environmental factors for changes in soil fungal community structure.In summary, water and nitrogen control changed the structure of soil fungal community, and their interaction was significant.Water changes could affect the response of soil fungal community to nitrogen addition.
中文关键词	土壤真菌群落 ; 氮沉降 ; 降雨变化 ; 荒漠草原
英文关键词	Soil fungal community Nitrogen deposition Precipitation change Desert steppe
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:7085425
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378065
作者单位	闫瑾, 内蒙古农业大学草原与资源环境学院, 内蒙古自治区土壤质量与养分资源重点实验室, 呼和浩特, 内蒙古 010011, 中国.; 红梅, 内蒙古农业大学草原与资源环境学院, 内蒙古自治区土壤质量与养分资源重点实验室, 呼和浩特, 内蒙古 010011, 中国.; 叶贺, 内蒙古农业大学草原与资源环境学院, 内蒙古自治区土壤质量与养分资源重点实验室, 呼和浩特, 内蒙古 010011, 中国.; 李静, 内蒙古农业大学草原与资源环境学院, 内蒙古自治区土壤质量与养分资源重点实验室, 呼和浩特, 内蒙古 010011, 中国.; 张宇晨, 内蒙古农业大学草原与资源环境学院, 内蒙古自治区土壤质量与养分资源重点实验室, 呼和浩特, 内蒙古 010011, 中国.; 梁志伟, 内蒙古农业大学草原与资源环境学院, 内蒙古自治区土壤质量与养分资源重点实验室, 呼和浩特, 内蒙古 010011, 中国.
推荐引用方式 GB/T 7714	闫瑾,红梅,叶贺,等. 短花针茅荒漠草原土壤真菌群落结构对水氮控制的响应[J],2021,43(10):37-45.
APA	闫瑾,红梅,叶贺,李静,张宇晨,&梁志伟.(2021).短花针茅荒漠草原土壤真菌群落结构对水氮控制的响应.中国草地学报,43(10),37-45.
MLA	闫瑾,et al."短花针茅荒漠草原土壤真菌群落结构对水氮控制的响应".中国草地学报 43.10(2021):37-45.