Microbial response to CaCO3 application in an acid soil in southern China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Microbial response to CaCO3 application in an acid soil in southern China
	Guo, Anning ; Ding, Longjun ; Tang, Zhong ; Zhao, Zhongqiu ; Duan, Guilan
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2019-05
卷号	79 页码:321-329
关键词	Soil acidification Calcium carbonate Soil respiration Soil bacterial community High-throughput sequencing
ISSN号	1001-0742
英文摘要	Calcium carbonate (CaCO3) application is widely used to ameliorate soil acidification. To counteract soil and bacterial community response to CaCO3 application in an acidic paddy soil in southern China, a field experiment was conducted with four different dosages of CaCO3 addition, 0, 2.25, 4.5 and 7.5 tons/ha, respectively. After one seasonal growth of rice, soil physicochemical properties, soil respiration and bacterial communities were investigated. Results showed that soil pH increased accordingly with increasing dose of CaCO3 addition, and 7.5 tons/ha addition increased soil pH to neutral condition. Moderate dose of CaCO3 application (4.5 tons/ha) significantly increased soil dissolved organic carbon (DOC) and dissolved organic nitrogen (DON) content, enhanced soil respiration, while the excessive CaCO(3 )application (7.5 tons/ha) decreased these soil properties. High-throughput sequencing results illustrated that moderate dose of CaCO3 application increased the richness and alpha diversity of soil bacterial community. Compared with control, the relative abundance of Anaerolineaceae family belonging to Chloroflexi phylum increased by 38.7%, 35.4% and 24.5% under 2.25, 4.5 and 7.5 tons/ha treatments, respectively. Redundancy analysis (RDA) showed that soil pH was the most important factor shaping soil bacterial community. The results of this study suggest that proper dose of CaCO3 additions to acid paddy soil in southern China could have positive effects on soil properties and bacterial community. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42755]
专题	生态环境研究中心_城市与区域生态国家重点实验室
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Nanjing Agr Univ, Coll Resources & Environm Sci, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Jiangsu, Peoples R China 3.China Univ Geosci Beijing, Coll Land Sci & Technol, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Guo, Anning,Ding, Longjun,Tang, Zhong,et al. Microbial response to CaCO3 application in an acid soil in southern China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,79:321-329.
APA	Guo, Anning,Ding, Longjun,Tang, Zhong,Zhao, Zhongqiu,&Duan, Guilan.(2019).Microbial response to CaCO3 application in an acid soil in southern China.JOURNAL OF ENVIRONMENTAL SCIENCES,79,321-329.
MLA	Guo, Anning,et al."Microbial response to CaCO3 application in an acid soil in southern China".JOURNAL OF ENVIRONMENTAL SCIENCES 79(2019):321-329.