Grassland degradation-induced declines in soil fungal complexity reduce fungal community stability and ecosystem multifunctionality

Luo, Shusheng; Png, G. Kenny; Ostle, Nicholas J.; Zhou, Huakun; Hou, Xiangyang; Luo, Chunling; Quinton, John; Schaffner, Urs; Sweeney, Christopher J.; Wang, Dangjun; Wu, Jihua; Wu, Yue; Bardgett, Richard D.

doi:10.1016/j.soilbio.2022.108865

Cited by 43 publications

(15 citation statements)

References 94 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Soil quality degradation induces associative reorganization of fungal taxa, which reduces fungal community network complexity and stability, and weakens ecosystem multi-functionality (Luo et al, 2023). This finding was confirmed in the present study, with the third generation eucalypt plantation having a significantly diminished number of nodes, edges, network density, degree centralization, and robustness that characterize the complexity and stability of soil fungal networks.…”

Section: Responses Of Fungal Community Network Structure To Plantatio...supporting

confidence: 87%

Mixing planting with native tree species reshapes soil fungal community diversity and structure in multi-generational eucalypt plantations in southern China

Xu²,

Wang³

et al. 2023

Front. Microbiol.

View full text Add to dashboard Cite

The continuous planting pattern of eucalypt plantations negatively affects soil quality. A mixed planting pattern using native species implanted in pure plantations has been considered a preferable measure for this problem. However, the impact of this approachon the structure and function of fungal communities is not clear. Here, harvesting sites that had undergone two generations of eucalypt plantations were selected to investigate soil fungal community structure and the co-occurrence network characteristics in response to two silvicultural patterns involving the third generation of eucalypt plantations (E) and mixed plantations of Eucalyptus. urograndis × Cinnamomum. camphora (EC) and E. urograndis × Castanopsis. hystrix (EH). Compared with the first generation of eucalypt plantations (CK), E markedly weakened enzyme activities associated with carbon-, nitrogen-. and phosphorus-cycling. Reduced soil fungal alpha diversity, and elevated the relative abundance of Basidiomycota while decreasing the abundance of Ascomycota. In contrast, EC and EH not only enhanced fungal alpha diversity, but also reshaped fungal composition. At the class level, E caused an enrichment of oligotrophic Agaricomycetes fungi, classified into symbiotroph guild, while EC markedly decreased the abundance of those fungi and increased the abundances of Sordariomycetes, Dothideomycetes, Eurotiomycetes, and Tremellomycetes fungi, which were classified into saprotroph or pathotroph guild. Moreover, fungal network complexity and robustness topological attributes were higher or significantly higher in mixed plantations soils compared with those of pure eucalypt plantation E. Furthermore, fungal diversity, structure, and functional taxa were significantly affected by soil organic matter, pH, total nitrogen, and nitrate nitrogen.

show abstract

Section: Responses Of Fungal Community Network Structure To Plantatio...supporting

confidence: 87%

Mixing planting with native tree species reshapes soil fungal community diversity and structure in multi-generational eucalypt plantations in southern China

Xu²,

Wang³

et al. 2023

Front. Microbiol.

View full text Add to dashboard Cite

show abstract

“…In line with findings from a large body of field observations and operational experiments ( Valencia et al, 2018 ; Lucas-Borja and Delgado-Baquerizo, 2019 ; Wang et al, 2020 ; Guo Y. et al, 2021 ; Fan et al, 2023 ), plant diversity positively contributed to multifunctionality. Some studies have shown that microbial diversity significantly promotes multifunctionality ( Delgado-Baquerizo et al, 2020 ; Guo Y. et al, 2021 ; Cui et al, 2022 ; Jiao et al, 2022a ; Li et al, 2022a ; Li Z. et al, 2022 ; Fan et al, 2023 ; Jia et al, 2023 ), whereas other studies have exhibited negative effects of microbial diversity ( Valencia et al, 2018 ; Wang et al, 2020 , 2021 , 2023a ; Li J. et al, 2023 ; Luo et al, 2023 ; Yang et al, 2023b ). Furthermore, in the study regarding a semi-arid steppe grazing grassland ( Wang et al, 2020 ), the absolute value of the slope of soil bacterial diversity toward multifunctionality was greater than that of plant diversity toward multifunctionality, implying that the role (negative) of soil bacterial diversity was greater than that (positive) of plant diversity.…”

Section: Discussionmentioning

confidence: 99%

“…The methods of determination and calculation were described in our previous research ( Ding et al, 2020 ) and in the Supplementary document . These individual functions were included in the multifunctionality because they are either real functions or good markers of ecosystem functions and have been frequently used to quantify ecosystem multifunctionality in recent studies ( Manning et al, 2018 ; Ding and Wang, 2021 ; Guan et al, 2022 ; Kakeh et al, 2022 ; Ding et al, 2023 ; Jia et al, 2023 ; Luo et al, 2023 ; Yang et al, 2023a ).…”

Section: Methodsmentioning

confidence: 99%

Shrub expansion raises both aboveground and underground multifunctionality on a subtropical plateau grassland: coupling multitrophic community assembly to multifunctionality and functional trade-off

Ding,

Chen,

Wang

et al. 2024

Front. Microbiol.

View full text Add to dashboard Cite

IntroductionShrubs have expanded into grasslands globally. However, the relative importance of aboveground and underground diversity and the relative importance of underground community assembly and diversity in shaping multifunctionality and functional trade-offs over shrub expansion remains unknown.MethodsIn this study, aboveground and underground multitrophic communities (abundant and rare archaea, bacteria, fungi, nematodes, and protists) and 208 aboveground and underground ecosystem properties or indicators were measured at three stages (Grass, Mosaic, Shrub) of shrub expansion on the Guizhou subtropical plateau grassland to study multifunctionality and functional trade-offs.ResultsThe results showed that shrub expansion significantly enhanced aboveground, underground, and entire ecosystem multifunctionality. The functional trade-off intensities of the aboveground, underground, and entire ecosystems showed significant V-shaped changes with shrub expansion. Shrub expansion improved plant species richness and changed the assembly process and species richness of soil abundant and rare subcommunities. Plant species diversity had a greater impact on multifunctionality than soil microbial diversity by more than 16%. The effect of plant species diversity on functional trade-offs was only one-fifth of the effect of soil microbial diversity. The soil microbial species richness did not affect multifunctionality, however, the assembly process of soil microbial communities did. Rather than the assembly process of soil microbial communities, the soil microbial species richness affected functional trade-offs.DiscussionOur study is the first to couple multitrophic community assemblies to multifunctionality and functional trade-offs. Our results would boost the understanding of the role of aboveground and underground diversity in multifunctionality and functional trade-offs.

show abstract

“…In soils, different soil microbial communities coexist to build complex networks in which positive, negative, and neutral interactions generate among different communities to improve their ecological functions in litter decomposition and soil nutrient cycling (Luo et al, 2023; Zhang et al, 2018). The interactions among different soil microbial communities in the complex network are mainly depended on the microbial species or the microbial clusters of taxa with their environmental preferences (Xue et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…The ecological network analysis is a reliable approach to explore complex soil microbial assembling and functioning in different environments (Shi et al, 2016; Xu et al, 2022). For example, Luo et al (2023) in an alpine meadow grassland reported that grassland degradation simplified the fungal community and thus reducing the complexity and stability of soil fungal community. Yang et al (2023) in the eastern Qinghai‐Tibetan Plateau found that conversion of forest to grassland increased the complexity and stability of soil microbial community, and the changes in ecological network had strong associations with soil multifunctionality.…”

Section: Introductionmentioning

confidence: 99%

Afforestation alters soil microbial community composition and reduces microbial network complexity in a karst region of Southwest China

Yu,

Tang,

Sun

et al. 2024

Land Degrad Dev

View full text Add to dashboard Cite

Soil microbial community plays important roles in altering ecological processes and biogeochemical cycles in ecosystems. However, little is known about how afforestation influences the diversity, composition, and ecological network of soil microbial community in karst regions. In this study, soil samples were collected from one farmland (FL) and three afforestation lands including one bamboo forest (BA), one landscape tree planting forest (LAT), and one orange orchard (ORO) in a karst region of Southwest China. The bacterial and fungal communities were characterized using the high‐throughput sequencing approach, and soil properties including soil organic carbon, pH, soil water content, and soil total and available nutrient contents were measured under different land use treatments. Results showed that conversion from FL to BA and LAT significantly reduced the Shannon diversity of bacterial community. At the phylum level (top 10), genus level (top 30), and operational taxonomic units (OTUs) level, afforestation from FL resulted in significant changes in nine phyla, 24 genera, and 31.32% OTUs of bacterial community, and in three phyla, 13 genera, and 11.62% OTUs of fungal community. The number of nodes, number of negative edges, connectivity, average degree, and relative modularity of the microbial network under afforestation lands decreased by 9.33%–18.66%, 47.98%–72.75%, 0.45%–5.93%, 14.73%–22.29%, and 6.46%–23.50%, respectively, compared with FL. The soil organic carbon, total potassium and total phosphorus were identified as the key soil properties affecting the microbial community. Compared with LAT and ORO, the changes in bacterial and fungal communities under BA were more obvious because of the higher contents in soil organic carbon (13.48%) and total potassium (27.18%). In conclusion, afforestation significantly changed compositions and ecological network complexity of soil microbial community in karst regions, and conversion from FL to BA had stronger influences on the changes of soil microbial community than other afforestation lands in Southwest China. These findings provide the context necessary to evaluate the responses of soil microbial community to land use changes in karst regions.

show abstract

Grassland degradation-induced declines in soil fungal complexity reduce fungal community stability and ecosystem multifunctionality

Cited by 43 publications

References 94 publications

Mixing planting with native tree species reshapes soil fungal community diversity and structure in multi-generational eucalypt plantations in southern China

Mixing planting with native tree species reshapes soil fungal community diversity and structure in multi-generational eucalypt plantations in southern China

Shrub expansion raises both aboveground and underground multifunctionality on a subtropical plateau grassland: coupling multitrophic community assembly to multifunctionality and functional trade-off

Afforestation alters soil microbial community composition and reduces microbial network complexity in a karst region of Southwest China

Contact Info

Product

Resources

About