干旱区生态环境知识资源中心(Arid): Long-term ground cover affects soil bacterial community and carbon metabolism in the Loess Plateau, China

Arid

DOI	10.1002/saj2.20411
	Long-term ground cover affects soil bacterial community and carbon metabolism in the Loess Plateau, China
	Zhang, Wenting; Wang, Yi; Li, Chunyue; Chang, Shun; Xue, Yinglong; Dang, Tinhui; Zeng, Xiaomin
通讯作者	Li, CY
来源期刊	SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
ISSN	0361-5995
EISSN	1435-0661
出版年	2022
卷号	86 期号:4 页码:918-931
英文摘要	Farmland mulching can maintain soil nutrients, which plays a positive role in agricultural planting in the arid area. However, the composition of the soil microbial community and the C cycle involved is unclear under farmland mulching. Based on the Changwu Agro-Ecological Experiment Station, this study set up a long-term positioning experiment to explore the effect on soil bacterial community structure and C metabolism capacity. In this study, we include five treatments: control uncovered (CK), plastic film mulching (PF), high amount of straw mulching carried out in July, August, and September every year (St(90)), low amount of straw mulch throughout the growth period (S-45), and high amount of straw cover throughout the growth period (S-90). We combined Illumina MiSeq sequencing and Biolog-ECO technology to analyze the functional characterization of soil bacterial community composition in terms of C source metabolism. The results indicated that the soil bacteria showed a high degree of epistatic clustering, and the operational taxonomic unit numbers of soil bacteria decrease as St(90), S-45, PF, CK, and S-90. Redundancy analysis showed that soil available P, NH4+-N, soil moisture content were the main environmental factors affecting bacterial community composition. Proteobacteria, Acidobacteria, and Actinobacteria are the main dominant flora in this area. Soil bacterial C metabolism was highest under PF treatment. Structural equation modeling (SEM) shows that surface cover has direct and indirect effects on bacterial C metabolism capacity and diversity through soil physicochemical properties. Reasonable mulching methods have a positive effect on the sustainable development of agro-ecosystems in arid areas.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000804698900001
WOS关键词	RESIDUE MANAGEMENT ; MICROBIAL BIOMASS ; PLASTIC FILM ; RIDGE-FURROW ; TILLAGE ; DIVERSITY ; STRAW ; FERTILIZATION ; DYNAMICS ; PATTERNS
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/2XILL650/394510
推荐引用方式 GB/T 7714	Zhang, Wenting,Wang, Yi,Li, Chunyue,et al. Long-term ground cover affects soil bacterial community and carbon metabolism in the Loess Plateau, China[J],2022,86(4):918-931.
APA	Zhang, Wenting.,Wang, Yi.,Li, Chunyue.,Chang, Shun.,Xue, Yinglong.,...&Zeng, Xiaomin.(2022).Long-term ground cover affects soil bacterial community and carbon metabolism in the Loess Plateau, China.SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,86(4),918-931.
MLA	Zhang, Wenting,et al."Long-term ground cover affects soil bacterial community and carbon metabolism in the Loess Plateau, China".SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 86.4(2022):918-931.