干旱区生态环境知识资源中心(Arid): Changes in Soil Bacterial and Nematode Communities during Long-term Continuous Cotton Cropping in an Arid Region

Arid

DOI	10.6620/ZS.2024.63-05
	Changes in Soil Bacterial and Nematode Communities during Long-term Continuous Cotton Cropping in an Arid Region
	Chen, Hong; Zhang, Fenghua; Yang, Lei; Li, Zaixin; Liu, Jiajie
通讯作者	Zhang, FH
来源期刊	ZOOLOGICAL STUDIES
ISSN	1021-5506
EISSN	1810-522X
出版年	2024
卷号	63
英文摘要	Clarifying the effects of continuous cotton cropping (CC) on soil biological communities is essential for maintaining agricultural productivity. In this study, high-throughput sequencing was used to study the effects of different CC durations (0-yr, 5-yr, 10-yr, 15-yr, 20-yr, and 25-yr CC treatments) on soil microbial and nematode communities. The results showed that the dominant bacterial phyla were Actinobacteria and Proteobacteria, and the dominant nematode genus was Helicotylenchus in all CC treatments. The richness indexes (ACE and Chao1 index) and diversity index (Shannon index) of bacterial and nematode communities were the highest in the 15-yr and 10-yr CC treatments, respectively. Bacterial community was significantly correlated with soil pH and available potassium (AK), and nematode abundance was significantly correlated with microbial biomass carbon (MBC). Soil bacterial PICRUSt analysis results showed that carbon metabolism and amino acid metabolism were the main metabolic functions of bacteria in the CC treatments. The composition and diversity of soil nematode communities were significantly related to the structure of soil bacterial communities, and the niche breadth of soil bacteria was negatively correlated with that of nematodes. Panagrolaimus and Acrobeles were the main genera of bacterialfeeding nematodes affecting bacterial communities, and their relative abundances were significantly positively correlated with the relative abundance of bacterial communities. Overall, long-term (10-15 years) continuous cotton cropping negatively impacts soil biota and the microecological environment of cotton fields in arid regions.
英文关键词	Cotton Continuous cropping Soil bacteria Soil nematode High-throughput sequencing
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001255226300001
WOS关键词	ABANDONED SALINIZED FARMLAND ; PLANT-PARASITIC NEMATODES ; MICROBIAL COMMUNITIES ; FEEDING NEMATODES ; ORGANIC-MATTER ; DIVERSITY ; CARBON ; RHIZOSPHERE ; MANAGEMENT ; PATTERNS
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405949
推荐引用方式 GB/T 7714	Chen, Hong,Zhang, Fenghua,Yang, Lei,et al. Changes in Soil Bacterial and Nematode Communities during Long-term Continuous Cotton Cropping in an Arid Region[J],2024,63.
APA	Chen, Hong,Zhang, Fenghua,Yang, Lei,Li, Zaixin,&Liu, Jiajie.(2024).Changes in Soil Bacterial and Nematode Communities during Long-term Continuous Cotton Cropping in an Arid Region.ZOOLOGICAL STUDIES,63.
MLA	Chen, Hong,et al."Changes in Soil Bacterial and Nematode Communities during Long-term Continuous Cotton Cropping in an Arid Region".ZOOLOGICAL STUDIES 63(2024).