干旱区生态环境知识资源中心(Arid): 锦鸡儿植物对盐碱地土壤理化性质和细菌群落的影响

Arid

	锦鸡儿植物对盐碱地土壤理化性质和细菌群落的影响
其他题名	Effect of Plantation of CaraganaSpecies on Soil Properties and Bacterial Community Dynamics in Saline-Alkali Soil
	马飞 1; 徐婷婷 2; 李明 1; 刘吉利 1; 王静 1; 赵聆希 2; 王贺瑾 2; 纳小凡 2
来源期刊	西北植物学报
ISSN	1000-4025
出版年	2017
卷号	37 期号:9 页码:1872-1880
中文摘要	锦鸡儿属的多种植物在干旱/半干旱区域水土保持等方面具有显著的作用效果,该研究以柠条锦鸡儿、中间锦鸡儿和小叶锦鸡儿为材料,选择宁夏银北西大滩核心试验站的盐渍化荒地为研究对象,分析了3种锦鸡儿建植1年对盐碱地土壤理化性质及土壤细菌群落的影响,以了解该类植物在盐碱地改良中的作用及生态效应。结果显示:(1)种植锦鸡儿1年能够显著降低盐碱地土壤全盐含量和pH,提高土壤全氮和全磷含量。(2)种植锦鸡儿不影响其非根际土壤细菌群落的alpha多样性,但小叶锦鸡儿非根际土壤细菌群落的香浓指数最低。(3)不同种锦鸡儿对盐碱地细菌群落结构的影响有所不同,小叶锦鸡儿根际/非根际细菌群落的结构分别与对照土壤以及柠条、中间锦鸡儿根际土壤存在明显差异;在属水平,包括假黄色单胞菌属、新鞘氨醇菌属及根瘤菌属在内的12个优势细菌属的相对丰度在小叶锦鸡儿非根际土壤中显著增加。(4)db-RDA分析表明,盐碱地土壤全盐、全氮及全磷含量分别解释了锦鸡儿非根际细菌群落结构变异信息的23.5%、25.4%和22.2%,3种因子累计共解释48.5%的细菌群落变异(P<0.05),但这些因子对锦鸡儿根际细菌群落的变化无显著影响。研究表明,短期种植锦鸡儿属植物对盐碱地土壤理化性质具有一定改良效果,且不影响非根际土壤细菌群落的alpha多样性,但不同种锦鸡儿对土壤细菌群落结构的影响存在差异。
英文摘要	Caragana liouana,C.microphylla and C.korshinskii are three of the most common species which are widely planted in an agro-pastoral transition zone in the arid and semiarid area of northern China. However,the ecology effect of these types of vegetation planting on soil properties and bacterial communities in saline-alkali soil has received far less attention.The root with any adherent soil particles and bulk soils from replicated plots representing three different species of Caragana were collected at a research site in Ningxia,China.The rhizosphere soil was washed from the roots,and community diversity and structure of rhizosphere and bulk soil bacterial were analyzed by using barcoded pyrosequencing of the 16SrRNA gene amplicons.Our results showed that:(1)soil pH and EC were decreased significantly in bulk soils of the three Caraganaspecies when compared with control soil,while the opposite patterns were found in total P and N.(2)Across all samples,Proteobacteria,Cyanobacteria,Actinobacteria,Bacteroidetes, Firmicutes,Gemmatimonadetes,Planctomycetes,Chloroflexi,Acidobacteria and Euryarchaeota were the most dominant bacterial phyla which represent 81.7%-97.5%of all taxon tags.Shannon index indicated that thealpha-diversity of the soil bacterial community did not affected by short term of Caraga- naplantation.(3)A principal co-ordinates analysis found that the bacterial community structure in rhizosphere of C.microphyllaobviously distinct from that of C.liouanaand C.korshinskii.Meanwhile,the same pattern was detected in the bacterial community of bulk soil under C.microphylla.At the genus level, the relative abundance of 12 dominant bacterial genera,such as Alysiosphaera,Entotheonella, Haliangium,Mesorhizobium,Ensifer,Pseudoxanthomonas,Rhizobium,Phyllobacterium,Phenylobacterium, Novosphingobium,Luteimonas,Brevundimonas and Chitinophaga,were significantly accumulated in the bulk soil of C.microphylla.(4)Distance based redundancy analysis indicated that soil EC,total P and N exerted strong influences on the structure of the bulk soil bacterial community and explained 23.5%,25.4%and 22.2%of community variances between samples,respectively.Our results suggest that short-term plantation of Caraganadid not affect thealphadiversity of bulk soil bacterial community and different species of Caraganaexerted distinct effects on the structure of the bulk and rhizosphere bacterial community.
中文关键词	锦鸡儿 ; 盐碱地 ; 细菌群落 ; 多样性
英文关键词	16SrRNA Caragana saline-alkali soil bacterial community diversity 16SrRNA
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6089315
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/2XILL650/236827
作者单位	1.宁夏大学环境工程研究院, 银川, 宁夏 750021, 中国; 2.宁夏大学生命科学学院, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	马飞,徐婷婷,李明,等. 锦鸡儿植物对盐碱地土壤理化性质和细菌群落的影响[J]. 宁夏大学,2017,37(9):1872-1880.
APA	马飞.,徐婷婷.,李明.,刘吉利.,王静.,...&纳小凡.(2017).锦鸡儿植物对盐碱地土壤理化性质和细菌群落的影响.西北植物学报,37(9),1872-1880.
MLA	马飞,et al."锦鸡儿植物对盐碱地土壤理化性质和细菌群落的影响".西北植物学报 37.9(2017):1872-1880.