干旱区生态环境知识资源中心(Arid): Effects of subsurface drip irrigation on alfalfa (Medicago sativa L.) growth and soil microbial community structures in arid and semi-arid areas of northern China

Arid

DOI	10.1016/j.apsoil.2020.103859
	Effects of subsurface drip irrigation on alfalfa (Medicago sativa L.) growth and soil microbial community structures in arid and semi-arid areas of northern China
	Fu, Bingzhe; Li, Zhigang; Gao, Xueqin; Wu, Longguo; Lan, Jian; Peng, Wendong
通讯作者	Li, ZG (corresponding author), Ningxia Univ, Sch Agr, Yinchuan 750021, Ningxia, Peoples R China.
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2021
卷号	159
英文摘要	Water shortage is a common environmental stressor encountered by agricultural production in arid and semiarid areas of the world. Under this situation, the impacts of different irrigation methods on the forage yield, select soil physiochemical properties, and soil microbial community structures were identified after alfalfa was planted for three years in Ningxia, northern China. The experiment consisted of five irrigation methods/treatments with three replicates for each treatment, including flood irrigation (FL), sprinkler irrigation (SP), and three subsurface drip irrigation systems, with drip tapes buried at a depth of 10 cm (SSL), 20 cm (SSM) and 30 cm (SSD). The results showed that all water-conserving irrigation methods increased the soil water content compared with FL, but only SSM and SSD presented higher potential in increasing alfalfa yield by improving soil water content, pH value and available P. Moreover, compared with FL, SSM and SSD also presented greater effects in altering microbial community structures, such as the alpha-diversity, beta-diversity, and bacterial composition at the order level, but did not significantly affect microbial taxon composition at the phylum level. Among all determined parameters, alfalfa yield was detected as the strongest factor, which simultaneously associated with the bacterial and fungal community composition, alpha-diversity, and beta-diversity. Moreover, the abundance changes of predicted microbial functional genes revealed that improved alfalfa growth also resulted in more nutrient exhaustion and organic matter depletion in those soils under SSM and SSD treatments. In addition, the changes in bacterial community structure were more sensitive than those in the fungal community structure to soil physicochemical properties and alfalfa growth. In conclusion, the SSM and SSD treatments have great potential to improve alfalfa growth and alter soil microbial community structures in the arid and semiarid areas of northern China.
英文关键词	Subsurface drip irrigation Soil property Alfalfa (Medicago sativa L.) Microbial community structure Northern China
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000609456600002
WOS关键词	LONG-TERM ; WATER ; QUALITY ; FUNGAL ; BACTERIAL ; DIVERSITY ; FERTILIZATION ; CONVERSION ; INDICATORS ; FREQUENCY
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349509
作者单位	[Fu, Bingzhe; Li, Zhigang; Gao, Xueqin; Wu, Longguo; Lan, Jian] Ningxia Univ, Sch Agr, Yinchuan 750021, Ningxia, Peoples R China; [Peng, Wendong] Yanchi Sci Inst Agr & Husb, Yanchi 751500, Peoples R China
推荐引用方式 GB/T 7714	Fu, Bingzhe,Li, Zhigang,Gao, Xueqin,et al. Effects of subsurface drip irrigation on alfalfa (Medicago sativa L.) growth and soil microbial community structures in arid and semi-arid areas of northern China[J],2021,159.
APA	Fu, Bingzhe,Li, Zhigang,Gao, Xueqin,Wu, Longguo,Lan, Jian,&Peng, Wendong.(2021).Effects of subsurface drip irrigation on alfalfa (Medicago sativa L.) growth and soil microbial community structures in arid and semi-arid areas of northern China.APPLIED SOIL ECOLOGY,159.
MLA	Fu, Bingzhe,et al."Effects of subsurface drip irrigation on alfalfa (Medicago sativa L.) growth and soil microbial community structures in arid and semi-arid areas of northern China".APPLIED SOIL ECOLOGY 159(2021).