DOI: 10.1016/j.pedobi.2020.150613
论文题名: Consistent effects of a non-native earthworm on soil microbial communities in three subtropical forests
作者: Zhang H. ; Shi L. ; Wen D. ; Wang R.
刊名: Pedobiologia
ISSN: 314056
出版年: 2020
卷: 79 语种: 英语
英文关键词: Earthworm gut
; Gut microbiota
; Non-native earthworm
; Pontoscolex corethrurus
; Soil microbial community
Scopus关键词: biodiversity
; biomass
; burrowing organism
; earthworm
; ecosystem function
; forest ecosystem
; fungus
; microbial activity
; microbial community
; soil ecosystem
; soil microorganism
; subtropical region
; tropical forest
; Bacteria (microorganisms)
; Fungi
; Pontoscolex corethrurus
英文摘要: Non-native earthworms have increasingly become a global problem due to the strong effects they exert on biodiversity and ecosystem functions in their introduced habitat. Quantifying interactions between non-native earthworm and microbial communities in forest ecosystems should increase our understanding of non-native earthworm-induced changes in soil biogeochemical cycles and plant diversity. In a microcosm experiment, we investigated non-native earthworm-microbial interactions in soils originating from three typical subtropical forests in which pan-tropical non-native Pontoscolex corethrurus (Müller, 1857) was the dominant earthworm. Our study showed that P. corethrurus strongly affected the soil microbial communities in all three soils. The cast production and burrowing activities of P. corethrurus significantly reduced total soil microbial biomass and soil bacterial biomass, but did not change soil fungal biomass. As a consequence, P. corethrurus substantially increased the ratio of fungi to bacteria. For most soil microbial properties, these effects occurred in all three soils, i.e., they were independent of habitat type. Furthermore, the microbial communities in the three forest soils were found to be more similar with than without P. corethrurus. These results suggest that P. corethrurus can greatly affect soil microbial communities in a variety of habitats where the earthworm has been introduced. Our results also showed that microbial biomass was substantially higher in the P. corethrurus gut than in the surrounding soil and that new habitat types can modify the microbial community in the gut of P. corethrurus. © 2020 Elsevier GmbH Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159110
Appears in Collections: 气候变化与战略
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作者单位: Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, College of Environment and Planning, Henan University, Jinming Avenue, Kaifeng, 475004, China; Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, 723 Xingke Road, Tianhe District, Guangzhou, 510650, China; Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, The Chinese Academy of Sciences, Guangzhou, 510650, China
Recommended Citation:
Zhang H.,Shi L.,Wen D.,et al. Consistent effects of a non-native earthworm on soil microbial communities in three subtropical forests[J]. Pedobiologia,2020-01-01,79