干旱区生态环境知识资源中心(Arid): Changes in soil microbial community following the conversion of wasteland to cotton land in saline-sodic region of Northwest China

Arid

DOI	10.1016/j.apsoil.2022.104424
	Changes in soil microbial community following the conversion of wasteland to cotton land in saline-sodic region of Northwest China
	Zong, Rui; Tan, Mingdong; Han, Yue; Zou, Ruihan; Wang, Zhenhua
通讯作者	Wang, ZH
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2022
卷号	174
英文摘要	Soil microbes are essential drivers of nutrient transformation and energy flow; nevertheless, how the soil microbial communities in oasis agroecosystems respond to the conversion from wasteland to cropland remains unknown. This study selected six cotton fields that differed in the time since reclamation (0-23 years) in Xinjiang, Northwest China. Soil from the top 20 cm layer was sampled, and microbial communities were analyzed using high-throughput sequencing. We found significantly decreasing soil fungal and bacterial relative abundances during the initial nine years of conversion, which then increased before stabilizing 15-23 years postconversion. Average abundances of fungal and bacterial taxa increased in all croplands compared with uncultivated wasteland, by 39.57% and 18.76%, respectively. Converting wasteland to cotton land significantly increased soil bacterial alpha-diversity (Chao1, Pielou's E, and Simpson indices) except in Good's coverage index. Increasing length of time since conversion shaped soil microbial community structure, with increases in the relative abundances of the fungal phylum Mortierellomycota and the bacterial phyla Actinobacteria, Chloroflexi, Acidobacteria, and Gemmatimonadetes; concurrent with decreases of the fungal phylum Ascomycota and the bacterial phyla Proteobacteria, Bacteroidetes, and Firmicutes. Our study reveals that short-term (9-13 years) conversion increases microbial richness and diversity due to the improvement of soil fertility; however, a longer time since conversion (15-23 years) might be detrimental to microbial community structure given the potential for secondary salinization.
英文关键词	Artificial oasis Agricultural ecosystems Reclaimed field Soil quality Cotton Secondary salinization
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000772624000004
WOS关键词	DRIP IRRIGATION ; BACTERIAL COMMUNITIES ; FUNGAL COMMUNITIES ; DIVERSITY ; WATER ; GRASSLAND ; QUALITY ; SHIFTS ; RICE ; FILM
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/2XILL650/391872
推荐引用方式 GB/T 7714	Zong, Rui,Tan, Mingdong,Han, Yue,et al. Changes in soil microbial community following the conversion of wasteland to cotton land in saline-sodic region of Northwest China[J],2022,174.
APA	Zong, Rui,Tan, Mingdong,Han, Yue,Zou, Ruihan,&Wang, Zhenhua.(2022).Changes in soil microbial community following the conversion of wasteland to cotton land in saline-sodic region of Northwest China.APPLIED SOIL ECOLOGY,174.
MLA	Zong, Rui,et al."Changes in soil microbial community following the conversion of wasteland to cotton land in saline-sodic region of Northwest China".APPLIED SOIL ECOLOGY 174(2022).