干旱区生态环境知识资源中心(Arid): Relationships between Soil Nematode Communities and Soil Quality as Affected by Land-Use Type

Arid

DOI	10.3390/f13101658
	Relationships between Soil Nematode Communities and Soil Quality as Affected by Land-Use Type
	Li, Zhilei; Chen, Xiaomei; Li, Jiangnan; Liao, Xionghui; Li, Dejun; He, Xunyang; Zhang, Wei; Zhao, Jie
通讯作者	Zhao, J
来源期刊	FORESTS
EISSN	1999-4907
出版年	2022
卷号	13 期号:10
英文摘要	Researchers have used both soil nematode data and soil quality index (SQI) data as indicators of soil quality. However, the relationship between soil nematodes and soil quality index is poorly understood. This study explored the relationship between soil nematode properties and soil quality in different land-use types in a subtropical karst region of Southwest China. We selected the following five typical land-use types that differ in the degree of soil disturbance: cropland (maize and soybean), sugarcane, mulberry, forage grass, and forest. SQI was calculated on the basis of bulk density (BD), soil pH, the ratio of soil organic carbon to total nitrogen (C:N), the contents of soil water (SWC), soil total nitrogen (TN), soil organic carbon content (SOC), calcium (Ca), magnesium (Mg), microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), ammonium nitrogen (AN), nitrate nitrogen (NN), bacteria, fungi, actinomycetes (ACT), and arbuscular mycorrhizal fungi (AMF). We found that the abundance, Simpson dominance index, and metabolic footprint of soil nematodes were highest in the forest, followed by sugarcane, cropland (maize and soybean), forage grass, and mulberry. The SQI was highest in the forest and lowest in the cropland. There was no significant difference observed among the other three regions. In addition, the SQI was positively correlated with the total nematode biomass and abundances of total nematodes, fungivores, and herbivores, the abundances of total nematodes biomass and total nematode abundance, fungivores, and herbivores. A random forest model revealed that the dominant nematode genera (i.e., Coomansus and Acrobeloides) and the rare genera (i.e., Heterocephalobus) were closely associated with soil quality. Our results suggest that the soil nematodes (especially keystone genera) may mediate the effects of ecosystem disturbance on soil quality. These findings increase our understanding of the relationships between soil organisms and soil quality.
英文关键词	soil nematodes land-use soil quality SQI karst ecosystem
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:000873121200001
WOS关键词	AGRICULTURAL ABANDONMENT ; DYNAMICS ; INDICATORS ; MANAGEMENT ; DIVERSITY ; CARBON ; DESERTIFICATION ; RESTORATION ; FRAMEWORK ; BACTERIAL
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/2XILL650/392636
推荐引用方式 GB/T 7714	Li, Zhilei,Chen, Xiaomei,Li, Jiangnan,et al. Relationships between Soil Nematode Communities and Soil Quality as Affected by Land-Use Type[J],2022,13(10).
APA	Li, Zhilei.,Chen, Xiaomei.,Li, Jiangnan.,Liao, Xionghui.,Li, Dejun.,...&Zhao, Jie.(2022).Relationships between Soil Nematode Communities and Soil Quality as Affected by Land-Use Type.FORESTS,13(10).
MLA	Li, Zhilei,et al."Relationships between Soil Nematode Communities and Soil Quality as Affected by Land-Use Type".FORESTS 13.10(2022).