干旱区生态环境知识资源中心(Arid): Long-term (25 years) continuous cotton cropping combined with residue incorporation affects the fungal communities in reclaimed saline soil

Arid

DOI	10.1016/j.pedobi.2023.150928
	Long-term (25 years) continuous cotton cropping combined with residue incorporation affects the fungal communities in reclaimed saline soil
	Chen, Hong; Yang, Lei; Mickan, Bede S.; Li, Zaixin; Zhang, Fenghua
通讯作者	Zhang, FH
来源期刊	PEDOBIOLOGIA
ISSN	0031-4056
EISSN	1873-1511
出版年	2024
卷号	102
英文摘要	Soil fungi are essential in the degradation of crop residues in natural systems. However, how long-term continuous cropping combined with residue incorporation (CCRI) affects the fungal communities in reclaimed saline soils is still unclear. In this study, CCRI was implemented in a reclaimed salinized farmland for 0 (control group), 5, 10, 15, 20, and 25 years to explore the effects on soil properties and fungal communities. The results showed that CCRI reduced soil pH, electrical conductivity (EC), and available potassium (AK) by 2.6-8.3%, 24.0-71.4%, and 9.1-59.4%, respectively, and increased soil organ carbon (SOC), total nitrogen (TN), available phosphorus (AP), and microbial biomass carbon (MBC) by 36.0-117.2%, 84.2-173.4%, 18.5-344.8%, and 16.0-206.8%, respectively, compared with the control group (0-yr treatment). CCRI increased soil fungal species richness, but this effect decreased after 15-yr CCRI treatment; Ascomycota had the highest relative abundance (75.8-90.9%) in the CCRI soils. CCRI treatments significantly reduced the relative abundance of symbiotroph, saprotroph, and pathotroph; Especially, the relative abundance of plant pathogen fungi was significantly reduced by (25.5-36.7%), and that of arbuscular mycorrhizal fungi (AMF) was significantly increased (0.01-0.07%), compared with the control group. Besides, the main soil properties affecting soil fungal community were pH and AK. Overall, the 10 - 15 years CCRI treatment was most beneficial for soil nutrient accumulation and maintaining the richness and diversity of fungal communities. However, it also decreased the abundance of some beneficial fungi and increased soil pathogenic fungi. Therefore, the duration of CCRI can not exceed 15 years, and attention can be paid to maintaining the stability of soil fungal community by regulating soil pH and AK content to reduce the negative impact of long term CCRI. This study will have important guiding significance for soil health improvement in arid areas.
英文关键词	Continuous cropping Residue incorporation Fungal community structure Functional guilds
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001148182900001
WOS关键词	ORGANIC-MATTER ; MICROBIAL COMMUNITY ; CHEMICAL-PROPERTIES ; STRAW RETURN ; RICE STRAW ; BACTERIAL ; WHEAT ; DIVERSITY ; CARBON ; FIELD
WOS类目	Ecology ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405038
推荐引用方式 GB/T 7714	Chen, Hong,Yang, Lei,Mickan, Bede S.,et al. Long-term (25 years) continuous cotton cropping combined with residue incorporation affects the fungal communities in reclaimed saline soil[J],2024,102.
APA	Chen, Hong,Yang, Lei,Mickan, Bede S.,Li, Zaixin,&Zhang, Fenghua.(2024).Long-term (25 years) continuous cotton cropping combined with residue incorporation affects the fungal communities in reclaimed saline soil.PEDOBIOLOGIA,102.
MLA	Chen, Hong,et al."Long-term (25 years) continuous cotton cropping combined with residue incorporation affects the fungal communities in reclaimed saline soil".PEDOBIOLOGIA 102(2024).