干旱区生态环境知识资源中心(Arid): 宁夏荒漠草原不同植物群落微斑块内土壤微生物区系特征

Arid

	宁夏荒漠草原不同植物群落微斑块内土壤微生物区系特征
其他题名	Soil microflora characteristics under different vegetation patches in a desert steppe of Ningxia, Northwest China
	杜雅仙 1; 康扬眉 1; 牛玉斌 1; 王攀 1; 余海龙 1; 张振师 2; 黄菊莹 3
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2019
卷号	30 期号:9 页码:3057-3065
中文摘要	植物群落斑块化是天然放牧草地最基本的特征之一.为探索植物群落斑块化对土壤微生物群落组成及多样性的影响,本研究以宁夏荒漠草原为研究对象,采用磷脂脂肪酸( PLFA)法对比分析了不同植物群落微斑块内土壤微生物生物量和群落结构特征的变化.结果表明: 1)4种植物群落微斑块内土壤微生物种类丰富,且都表现为细菌含量最高,真菌和放线菌含量较少,革兰氏阳性菌含量高于革兰氏阴性菌; 2)4种植物群落中,甘草微斑块的土壤微生物总量显著高于猪毛蒿、苦豆子和黄芪; 3)冗余分析表明,磷脂脂肪酸总量、革兰氏阳性菌、革兰氏阴性菌、真菌、厌氧菌、真菌/细菌均与土壤有机碳呈显著正相关,与pH呈显著负相关,表明土壤有机碳、pH是荒漠草原土壤微生物生长和发育的重要影响因素.
英文摘要	Vegetation patch is one of the most basic characteristics of natural grazing grassland. To explore the effects of vegetation patch on soil microbial community,the changes of soil microbial biomass and community structure under four different vegetation patches in Ningxia desert steppe were quantified using phospholipid fatty acid ( PLFA)analysis. The results showed that: 1)Soil microbial groups were abundant in vegetation patches,with the highest bacterial content,low fungal and actinomycete content,and the Gram-positive bacteria content being higher than that of Gramnegative bacteria in the patches of the four plant communities; 2)The total soil microbial biomass of Glycyrrhiza uralensis patch was significantly higher than that of Artemisia scoparia,Sophora alopecuroides, and Astragalus melilotoides patches; 3)Total PLFAs,Gram-positive bacteria,Gramnegative bacteria,fungi,anaerobic bacteria and fungi /bacteria were significantly positively correlated with soil organic C,and significantly negatively correlated with soil pH,indicating that soil organic C and pH were important factors affecting the growth and development of soil microorganisms in desert steppe.
中文关键词	群落微斑块 ; 理化性质 ; 微生物群落 ; 多样性
英文关键词	vegetation patches physicochemical properties microbial community diversity
语种	中文
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6567892
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/316098
作者单位	1.宁夏大学资源环境学院, 银川, 宁夏 750021, 中国; 2.中国电建集团西北勘测设计研究院有限公司, 西安, 陕西 710065, 中国; 3.宁夏大学资源环境学院;;宁夏大学环境工程研究院, ;;, 银川;;银川, ;; 750021;;750021
推荐引用方式 GB/T 7714	杜雅仙,康扬眉,牛玉斌,等. 宁夏荒漠草原不同植物群落微斑块内土壤微生物区系特征[J]. 宁夏大学,2019,30(9):3057-3065.
APA	杜雅仙.,康扬眉.,牛玉斌.,王攀.,余海龙.,...&黄菊莹.(2019).宁夏荒漠草原不同植物群落微斑块内土壤微生物区系特征.应用生态学报,30(9),3057-3065.
MLA	杜雅仙,et al."宁夏荒漠草原不同植物群落微斑块内土壤微生物区系特征".应用生态学报 30.9(2019):3057-3065.