干旱区生态环境知识资源中心(Arid): Soil structure and nutrient supply drive changes in soil microbial communities during conversion of virgin desert soil to irrigated cropland

Arid

DOI	10.1111/ejss.12901
	Soil structure and nutrient supply drive changes in soil microbial communities during conversion of virgin desert soil to irrigated cropland
	Chen, Long-Fei; He, Zhi-Bin; Zhao, Wen-Zhi; Liu, Ji-Liang; Zhou, Hai; Li, Jing; Meng, Yang-Yang; Wang, Li-Sha
通讯作者	He, Zhi-Bin
来源期刊	EUROPEAN JOURNAL OF SOIL SCIENCE
ISSN	1351-0754
EISSN	1365-2389
出版年	2020
卷号	71 期号:4 页码:768-781
英文摘要	Soil microorganisms are critical to soil health and environmental functions; however, the dynamics of microbial communities and their response to soil variables following conversion of desert soils to oasis farmland have not been well documented. We used high-throughput pyrosequencing to investigate the dynamics of soil microbial communities along an irrigated cultivation chronosequence (cultivated for 16, 33, 45 and 60 years) and in adjacent non-cultivated soil in a desert-oasis ecotone in northwestern China. Additionally, we explored which soil variables may be responsible for shifts in microbial communities. Generally, cultivation in desert soil increased microbial community abundance and diversity; however, bacterial abundance and diversity increased along the cultivation chronosequence, whereas fungal abundance and diversity initially increased and then decreased. Continuous crop cultivation also resulted in a shift in microbial community composition, notably with a decrease in nitrogen (N)-fixing microbes (Proteobacteria and Cyanobacteria) and an increase in ammonia-oxidizing (Nitrosomonadales) and nitrite-oxidizing microbes (Nitrospirae). Redundancy analysis showed that soil organic carbon, total N, available N, available phosphorus and bulk density explained over 80% of the variation in both bacterial and fungal communities; this indicated the critical roles of nutrient supply and soil structure in shaping the composition and diversity of microbial communities during the conversion of native desert soils to irrigated croplands. Highlights Cultivation in desert soil increased microbial community abundance and diversity. Cultivation decreased N-fixing microbes. Cultivation increased ammonia-oxidizing and nitrite-oxidizing microbes. Soil structure and nutrient supply shaped the diversity of microbial communities.
英文关键词	cultivation bacterial community fungal community Illumina MiSeq platform desert-oasis region
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000500550300001
WOS关键词	LONG-TERM FERTILIZATION ; BACTERIAL COMMUNITIES ; FUNGAL COMMUNITIES ; SECONDARY SUCCESSION ; MICROORGANISMS ; BIODIVERSITY ; DIVERSITY ; RESPONSES ; FARMLAND ; NITROGEN
WOS类目	Soil Science
WOS研究方向	Agriculture
EI主题词	2019-12-05
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311584
作者单位	Northwest Inst Ecoenvironm & Resources, Linze Inland River Basin Res Stn, Chinese Ecosyst Res Network, Key Lab Ecohydrol Inland River Basin, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Chen, Long-Fei,He, Zhi-Bin,Zhao, Wen-Zhi,et al. Soil structure and nutrient supply drive changes in soil microbial communities during conversion of virgin desert soil to irrigated cropland[J],2020,71(4):768-781.
APA	Chen, Long-Fei.,He, Zhi-Bin.,Zhao, Wen-Zhi.,Liu, Ji-Liang.,Zhou, Hai.,...&Wang, Li-Sha.(2020).Soil structure and nutrient supply drive changes in soil microbial communities during conversion of virgin desert soil to irrigated cropland.EUROPEAN JOURNAL OF SOIL SCIENCE,71(4),768-781.
MLA	Chen, Long-Fei,et al."Soil structure and nutrient supply drive changes in soil microbial communities during conversion of virgin desert soil to irrigated cropland".EUROPEAN JOURNAL OF SOIL SCIENCE 71.4(2020):768-781.