干旱区生态环境知识资源中心(Arid): Effects of different grassland use patterns on soil bacterial communities in the karst desertification areas

Arid

DOI	10.3389/fmicb.2023.1208971
	Effects of different grassland use patterns on soil bacterial communities in the karst desertification areas
	Chi, Yongkuan; Song, Shuzhen; Xiong, Kangning
通讯作者	Xiong, KN
来源期刊	FRONTIERS IN MICROBIOLOGY
EISSN	1664-302X
出版年	2023
卷号	14
英文摘要	Soil bacteria are closely related to soil environmental factors, and their community structure is an important indicator of ecosystem health and sustainability. A large number of artificial grasslands have been established to control rocky desertification in the karst areas of southern China, but the influence of different use patterns on the soil bacterial community in artificial grasslands is not clear. In this study, three grassland use patterns [i.e., grazing (GG), mowing (MG), and enclosure (EG)] were used to investigate the effects of different use patterns on the soil bacterial community in artificial grassland by using 16S rDNA Illumina sequencing and 12 soil environmental indicators. It was found that, compared with EG, GG significantly changed soil pH, increased alkaline hydrolyzable nitrogen (AN) content (P < 0.05), and decreased soil total phosphorus (TP) content (P < 0.05). However, MG significantly decreased the contents of soil organic carbon (SOC), total phosphorus (TP), available nitrogen (AN), ammonium nitrogen (NH4+-N), beta-1,4-glucosidase (BG), and N-acetyl-beta-D-glucamosonidase (NAG) (P < 0.05). The relative abundance of chemoheterotrophy was significantly decreased by GG and MG (P < 0.05). GG significantly increased the relative abundance of Acidobacteria and Gemmatimonadota (P < 0.05) and significantly decreased the relative abundance of Proteobacteria (P < 0.05), but the richness index (Chao 1) and diversity index (Shannon) of the bacterial community in GG, MG, and EG were not significantly different (P > 0.05). The pH (R-2 = 0.79, P = 0.029) was the main factor affecting the bacterial community structure. This finding can provide a scientific reference for ecological restoration and sustainable utilization of grasslands in the karst desertification areas.
英文关键词	artificial grassland soil microorganism sustainable utilization karst desertification Illumina sequencing
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:001078708500001
WOS关键词	MICROBIAL COMMUNITY ; ROCKY DESERTIFICATION ; VEGETATION RESTORATION ; DIVERSITY ; BIOGEOGRAPHY ; LIMITATION ; AMENDMENTS ; GRADIENT ; FORAGE
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396565
推荐引用方式 GB/T 7714	Chi, Yongkuan,Song, Shuzhen,Xiong, Kangning. Effects of different grassland use patterns on soil bacterial communities in the karst desertification areas[J],2023,14.
APA	Chi, Yongkuan,Song, Shuzhen,&Xiong, Kangning.(2023).Effects of different grassland use patterns on soil bacterial communities in the karst desertification areas.FRONTIERS IN MICROBIOLOGY,14.
MLA	Chi, Yongkuan,et al."Effects of different grassland use patterns on soil bacterial communities in the karst desertification areas".FRONTIERS IN MICROBIOLOGY 14(2023).