Data from: Testing the ectomycorrhizal dominance hypothesis for ecosystem multifunctionality in a subtropical mountain forest
Data files
Jul 21, 2024 version files 26.48 KB
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MEF_ALL_DATA.xlsx
23.85 KB
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README.md
2.64 KB
Abstract
Mycorrhizal associations are key mutualisms that shape the structure of forest communities and multiple ecosystem functions. However, we lack a framework for predicting the varying dominance of distinct mycorrhizal associations in an integrated proxy of multifunctionality across ecosystems. Here, we used the datasets containing diversity of mycorrhizal associations and 18 ecosystem processes related to supporting, provisioning, and regulating services to examine how the dominance of EcM associations affects ecosystem multifunctionality in subtropical mountain forests in Southwest China. Meanwhile, we synthesized the prevalence of EcM dominant effects on ecosystem functioning in forest biomes. Our results demonstrated that elevation significantly modified the distributions of EcM trees and fungal dominance, which in turn influenced multiple functions simultaneously. Multifunctionality increased with increasing proportion of EcM associations, supporting the ectomycorrhizal-dominance hypothesis. Meanwhile, we observed that the impacts of EcM dominance on individual ecosystem functions exhibited different relationships among forest biomes. Our findings highlight the importance of ectomycorrhizal dominance in regulating multifunctionality in subtropical forests. However, this ectomycorrhizal feedback in shaping ecosystem functions cannot necessarily be generalized across forests. Therefore, we argue that the predictions for ecosystem multifunctionality in response to the shifts of mycorrhizal composition could vary across space and time.
Ya-Huang Luo Liang-Liang Ma, Marc W. Cadotte, Sebastian Seibold, Jia-Yun Zou, Kevin S. Burgess, Shao-Lin Tan, Lin-Jiang Ye, Wei Zheng, Zhi-Fa Chen, De-Tuan Liu, Guang-Fu Zhu, Xiao-Chun Shi, Wei Zhao, Zheng Bi, Xiang-Yuan Huang, Jia-Hua Li, Jie Liu, De-Zhu Li, Lian-Ming Gao (2024) to be published in New Phytologist.
A detailed description of the data file is given below.
MEF_ALL_DATA.xlsx
plot ID: The identity of the plot
Elevation1: The true elevation for each plot
type: The plot belong to the eastern slope or western slope
Predictors (EcM dominance gradient)
EcM_trees: The relative proportion of EcM tress
EcM_fungi: The relative proportion of EcM fungi
18 Ecosystem functions (scaled data)
Description of the variables and units
AGB (Mg/ha ): Above-ground biomass for each plot
Tree leaf C/N: Tree leaf ratio of carbon to nitrogen
Tree leaf N/P: Tree leaf ratio of nitrogen to phosphorus
Tree. regeneration: Log10 transformation of the abundance data
Understorey. diversity: Understory Shannon diversity
Soil.organic.carbon ( g/kg): Soil organic carbon
Soil.C/N: Soil ratio of carbon to nitrogen
Soil.N/P: Soil ratio of nitrogen to phosphorus
Soil.A.N (mg/kg): Soil available nitrogen
Soil.A.P (mg/kg): Soil available phosphorus
Soil urease activity (mg/(g.h)): Soil urease activity
Soil acid phosphatase activity (mg/(g.h)): Soil acid phosphatase activity
Soil β-glucosidase activity (μmol/(g.h)): Soil β-glucosidase activity
Soil catalase activity (mg/(g.h)): Soil catalase activity
Soil β-xylosidase activity (μmol/(g.h)): Soil β-xylosidase activity
Soil N-acetyl-β-glucosaminidase activity (μg/(g.h): Soil N-acetyl-β-glucosaminidase activity
Soil saprophytic fungi diversity: Soil saprophytic fungi diversity
Resistance to plant pathogens: Resistance to plant pathogens
Abiotic variables
Dim.1: Abiotic PCA1 values
Dim.2: Abiotic PCA1 values
Elevation(m): Scaled elevation
soil pH: Scaled soil pH
mean_air temp(℃): Scaled mean air temperature
max_air temp (℃): Scaled maximum air temperature
min_air temp (℃): Scaled minimum air temperature
mean_soil temp (℃): Scaled mean soil temperature
max_soil temp (℃): Scaled maximum soil temperature
min_soil temp(℃): Scaled minimum soil temperature
humidity (%): Scaled air humidity
soil water content (%): Scaled soil water content
CV_air temp: Scaled coefficient variation of air temperature
CV_soil temp: Scaled coefficient variation of soil temperature
Spatial information
X: X location
Y: Y location