干旱区生态环境知识资源中心(Arid): 干旱区不同类型盐碱地土壤微生物碳源代谢活性研究

Arid

	干旱区不同类型盐碱地土壤微生物碳源代谢活性研究
其他题名	Study on soil microbial biomass carbon source metabolism in different types of sodic saline-alkali soil in arid area
	王巍琦; 杨磊; 程志博; 张凤华
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2019
卷号	33 期号:6 页码:158-166
中文摘要	本研究通过运用Biolog技术,对新疆不同类型盐碱地土壤微生物群落特征进行研究,探讨不同盐碱土壤对微生物碳源代谢和微生物群落的影响。结果表明:不同类型盐碱土壤微生物碳源利用能力存在差异,表现为:碳酸盐型>硝酸盐型>氯化-硫酸盐型>硫酸盐型。主成分分析( PCA)表明,碳水化合物类和羧酸类是造成碳源利用分异的主要碳源。微生物Shannon指数( H)多样性由大到小为:碳酸盐群落>氯化-硫酸盐群落>硝酸盐群落>硫酸盐群落,在Simpson指数( D)和McIntosh指数( U)上硫酸盐型群落均显著( P ﹤ 0. 05)低于其他三类群落。相关分析表明有机质与多样性指数Shannon指数( H) 、Simpson指数( D)有极显著相关性( P ﹤ 0. 01) ,与全磷有显著( P ﹤ 0. 05)相关。冗余分析( RDA)表明,pH、全盐、速效钾对微生物代谢有极显著( P ﹤ 0. 01)影响,全磷有显著( P ﹤ 0. 05)影响,而速效磷的影响十分显著( P ﹤ 0. 001) 。总体来说,碳酸盐型土壤微生物群落有较强的碳源利用能力和较高功能多样性,而土壤速效磷、有机质能够促进盐碱地微生物碳源代谢活性和群落多样性。
英文摘要	The objective of this study was to evaluate the effect of different types of saline-alkali soil on soil microbial carbon metabolism and microbial community in Xinjiang,northwest China. BIolog method was performed to investigate characteristics of soil microbial in different soil types. The results indicated that soil types significantly affect the carbon utilization capacity,which decreased in an order carbonate communities > nitrate communities > chloride-sulfate communities > sulfate communities. The principal component analysis ( PCA) showed that carbohydrates and carboxylic acids were the main carbon sources that cause the differentiation of carbon sources utilization. Shannon index ( H) in the whole soil decrease in the order of carbonate community > chloride-sulfate community > nitrate community > sulfate community. We also observed that sulfate communities were significantly lower than the other types of communities on Simpson index ( D) and McIntosh index ( U) ( P < 0. 05) . Correlation analysis indicated that soil organic matter ( SOM) significantly related with diversity index ( Shannon,Simpson and McIntosh) and total P. Redundancy analysis ( RDA) revealed that pH,total salt,available K,available P and total P were the main factors in influencing soil microbial carbon metabolism. Among them,soil available P effect was extremely significant ( P < 0. 05) . Together,carbonate community has strong carbon source utilization ability and high microbial diversity,available P and SOM can promote carbon sources metabolism and microbial community structure diversity in study area.
中文关键词	盐碱类型 ; 碳源代谢 ; 多样性 ; 土壤微生物 ; 干旱区
英文关键词	salt type metabolism of carbon source diversity soil microbial arid area
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6485159
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239203
作者单位	石河子大学, 新疆生产建设兵团绿洲生态农业重点实验室, 石河子, 新疆 832003, 中国
推荐引用方式 GB/T 7714	王巍琦,杨磊,程志博,等. 干旱区不同类型盐碱地土壤微生物碳源代谢活性研究[J]. 石河子大学,2019,33(6):158-166.
APA	王巍琦,杨磊,程志博,&张凤华.(2019).干旱区不同类型盐碱地土壤微生物碳源代谢活性研究.干旱区资源与环境,33(6),158-166.
MLA	王巍琦,et al."干旱区不同类型盐碱地土壤微生物碳源代谢活性研究".干旱区资源与环境 33.6(2019):158-166.