干旱区生态环境知识资源中心(Arid): The Impact of Artificial Afforestation on the Soil Microbial Community and Function in Desertified Areas of NW China

Arid

DOI	10.3390/f15071140
	The Impact of Artificial Afforestation on the Soil Microbial Community and Function in Desertified Areas of NW China
	Li, Yan; Jiang, Lamei; Yuan, Hongfei; Li, Eryang; Yang, Xiaodong
通讯作者	Yang, XD
来源期刊	FORESTS
EISSN	1999-4907
出版年	2024
卷号	15 期号:7
英文摘要	Afforestation is a widely used method of controlling desertification globally as it significantly impacts the soil quality, microbial community structure, and function. Investigating the effects of various artificial vegetation restoration models on soil microbial communities is crucial in understanding the mechanisms involved in combating desertification. However, research on this topic in arid, desertified regions is limited. In this study, we collected soil samples from two types of artificial forests (single species and mixed species) and bare desert soils in desertified areas of Northwest China to explore the impact of afforestation on soil nutrients, the microbial community composition, network relationships, and carbohydrate degradation abilities using metagenomic sequencing techniques. Our findings indicate that afforestation significantly enhances the soil moisture, total carbon, available phosphorus, and total nitrogen levels. The soil under mixed-species forests exhibited significantly higher levels of total carbon, total phosphorus, available phosphorus, and total nitrogen than that under single-species forests. Following afforestation, the populations of Pseudomonadota, Acidobacteriota, and Cyanobacteria increased significantly, whereas Actinomycetota decreased markedly. In single-species forests, Pseudomonadota and Bacillota were enriched, whereas Chloroflexota, Planctomycetota, and Acidobacteriota were more prevalent in mixed-species plantations. Afforestation increases the complexity and stability of microbial community networks. Afforestation enhances microbial metabolic activity, particularly increasing the abundance of carbon degradation functional genes in forest soils compared to bare desert soils. Mixed-species plantations outperform single-species forests in enhancing carbohydrate metabolism, amino acid metabolism, and the biodegradation and metabolism of xenobiotics. The abundance of functional genes associated with the degradation of starch, cellulose, hemicellulose, chitin, and pectin in mixed-species forests was significantly greater than in single-species plantations. Our study shows that mixed-species afforestation effectively improves the soil quality, enhances the stability of soil microbial communities, and bolsters the carbon cycle in arid regions prone to desertification. The reciprocal relationship between microorganisms and plants may serve as an intrinsic mechanism by which mixed-species afforestation more effectively controls desertification.
英文关键词	artificial afforestation co-occurrence network soil microorganisms mixed-species plantation carbohydrate degradation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001277481600001
WOS关键词	LOESS PLATEAU ; CARBON ; RESTORATION ; COMPETITION ; SUCCESSION ; DIVERSITY ; ALIGNMENT ; NETWORKS ; POOLS
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403806
推荐引用方式 GB/T 7714	Li, Yan,Jiang, Lamei,Yuan, Hongfei,et al. The Impact of Artificial Afforestation on the Soil Microbial Community and Function in Desertified Areas of NW China[J],2024,15(7).
APA	Li, Yan,Jiang, Lamei,Yuan, Hongfei,Li, Eryang,&Yang, Xiaodong.(2024).The Impact of Artificial Afforestation on the Soil Microbial Community and Function in Desertified Areas of NW China.FORESTS,15(7).
MLA	Li, Yan,et al."The Impact of Artificial Afforestation on the Soil Microbial Community and Function in Desertified Areas of NW China".FORESTS 15.7(2024).