Soil Quality and r – K fungal Communities in Plantations after Conversion from Subtropical Forest

Authors

Ting Lu, Central South University of Forestry and Technology
Xiaohong Wu, Central South University of Forestry and Technology
Huangwei Li, Central South University of Forestry and Technology
Chen Ning, Central South University of Forestry and Technology
Yong Li, Central South University of Forestry and Technology
Xuyuan Zhang, Central South University of Forestry and Technology
Jinsong He, Central South University of Forestry and Technology
Ekaterina Filimonenko, Tyumen State University
Shu Chen, Southern Illinois University Carbondale
Xiaoyong Chen, Governors State UniversityFollow
David J. Gibson, Southern Illinois University Carbondale
Yakov Kuzyakov, Central South University of Forestry and Technology
Wende Yan, Central South University of Forestry and Technology

Files

Academic Unit

College of Arts and Sciences

Publication Date

12-2022

Document Type

Article

Abstract

Intensive clear-cutting of natural forests and conversion to monoculture plantations are ongoing worldwide, leading to the degradation of soil quality and microbial functions. Here, we compared soil quality index (SQI) and fungal communities in a natural forest (Forest) and four 5-year-old monoculture plantations, including Camellia oleifera (Oil), Amygdalus persica (Peach), Myrica rubra (Berry) and Cunninghamia lanceolate (Fir) in a subtropical region of China. After conversion, soil pH in the plantations rose up to 0.31, but organic carbon and total nitrogen contents, sucrase, acid protease, glutaminase, acid and alkaline phosphatase activities decreased by 83%, 59%, 40%, 64%, 66%, 94% and 59%, respectively. Correspondingly, the SQI dropped by 65%. High-throughput sequencing of the ITS1 region demonstrated an increase in α-diversity and a striking difference in β-diversity of fungi following conversion. Changes in the dominant fungal taxa following forest conversion to plantations were interpreted by r- and K-selection of life strategies. Conversion increased the fungal groups with r-strategies, such as Ascomycota and Zygomycota, but decreased the fungal groups with K-strategies, such as Basidiomycota. Genera affiliated to those phyla including Pseudophialophora, Rhytisma increased, but Russula decreased. Redundancy analysis and structural equation modeling indicated that the diversity and composition of fungal communities changed with soil degradation, which was mainly driven by increased pH and total phosphorus content, but decreased C/N ratio and C and N related enzymes activities. Overall, the conversion of forest to monoculture plantations decreased soil quality and the abundance of K-strategists, retarded the decomposition of persistent organic matter, but boosted the prevalence of r-strategists in a more diverse fungal community.

Journal Title

Catena

Volume

219

DOI

https://doi.org/10.1016/j.catena.2022.106584

Recommended Citation

Lu, Ting; Wu, Xiaohong; Li, Huangwei; Ning, Chen; Li, Yong; Zhang, Xuyuan; He, Jinsong; Filimonenko, Ekaterina; Chen, Shu; Chen, Xiaoyong; Gibson, David J.; Kuzyakov, Yakov; and Yan, Wende, "Soil Quality and r – K fungal Communities in Plantations after Conversion from Subtropical Forest" (2022). Faculty Authors and Creators Reception. 152.
https://opus.govst.edu/fac/152