Data from: Foliar fungal pathogen inhibition increases ecosystem carbon sequestration independently of nitrogen enrichment in a Tibetan alpine meadow
Data files
Apr 07, 2025 version files 39.39 KB
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Fuwei_Wang_et_al._JE.zip
36.56 KB
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README.md
2.83 KB
Abstract
Anthropogenically caused nitrogen (N) enrichment may stimulate both photosynthetic carbon (C) fixation and infection of foliar pathogens. However, the interactive effects of N input and foliar fungal pathogens on the ecosystem C cycling are poorly understood. Using a 6-year field experiment with N input and fungicide application in a Tibetan alpine meadow, we examined how N enrichment and foliar fungal pathogens influence ecosystem C sequestration independently and in combination, possibly resulting in interactions between N enrichment and fungal pathogens. Nitrogen input increased the gross ecosystem productivity (GEP) and ecosystem respiration (ER) through increasing plant biomass and foliar N content, but did not affect net ecosystem productivity (NEP). Fungicide application increased GEP and NEP by relieving foliar pathogen infection but did not affect ER, resulting in net increased ecosystem C sequestration. However, no significant interactive effects between N input and fungicide application were detected.
Synthesis. These results indicate that foliar fungal pathogens are critical biotic factors influencing ecosystem C sequestration in alpine ecosystems, independent of N input. This study emphasizes the important role of biotic factors in regulating ecosystem functions.
Dataset DOI: 10.5061/dryad.z612jm6p6
Description of the data and file structure
Data for Foliar fungal pathogen inhibition increases ecosystem carbon sequestration independently of nitrogen enrichment in a Tibetan alpine meadow
Files and variables
File: Fuwei_Wang_et_al._JE.zip
Description:
This “Fuwei_Wang_et_al._JE.zip” file contain two “.xlsx” file name “Soil and plant properties” and “C_flux”.
Date of data collection: 2021 (the experiment was established from 2016).
Geographic location of data collection: at the eastern Tibetan Plateau (33°38′N, 101°53′E) of Maqu county, Gansu Province, China.
DATA-SPECIFIC INFORMATION FOR: Soil and plant properties.xlsx
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Plot: ID of 4 treatment plots
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Block:the experiment is a randomized block design and there are 5 replicate blocks.
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Treatment: Control, F-fungicide application, N-nitrogen addition, F+N-the combination of fungicide application and nitrogen addition,
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Fungicide: whether this plot was treated with fungicide application; ambient-no fungicide was added, Fungicide-fungicide was added
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Nitrogen: whether this plot was treated with nitrogen addition; ambient-no nitrogen was added, Nitrogen-nitrogen was added
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IN (mg/kg): inorganic nitrogen content
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NO3 (mg/kg): NH4+-N content
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pH: soil pH value
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FoliarN (mg/kg): foliar N content
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Pathogen_load(%): community weight mean value of pathogen infection severity of leaves in each plot
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AGB(g/m2): above ground biomass in each plot
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RB(g/m2): root biomass in each plot
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GB (g/m2): graminoid biomass in each plot
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FB (g/m2): forb biomass in each plot
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ave_NEP (μmol CO2/m2/s): average net ecosystem productivity
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ave_ER (μmol CO2/m2/s): average ecosystem respiration
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ave_GEP (μmol CO2/m2/s): average gross ecosystem productivity
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Richness: speceis number in each plot
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Shannon:Shannon diversity
DATA-SPECIFIC INFORMATION FOR: C_flux.xlsx
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Plot: ID of 4 treatment plots
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Block:the experiment is a randomized block design and there are 5 replicate blocks.
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Treatment: Control, F-fungicide application, N-nitrogen addition, F+N-the combination of fungicide application and nitrogen addition,
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Fungicide: whether this plot was treated with fungicide application; ambient-no fungicide was added, Fungicide-fungicide was added
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Nitrogen: whether this plot was treated with nitrogen addition; ambient-no nitrogen was added, Nitrogen-nitrogen was added
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Time: different sample time for C_flux
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NEP (μmol CO2/m2/s): net ecosystem productivity
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ER (μmol CO2/m2/s): ecosystem respiration
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GEP (μmol CO2/m2/s): gross ecosystem productivity