DOI: 10.5061/dryad.x95x69pz6
title: Data from: Morphological constraints on plant-mediated methane release and oxidation under experimental warming in a peatland and meadow on the Qinghai-Tibetan Plateau

description: This dataset comprises measurements of plant-mediated methane (CH₄) and
 carbon dioxide (CO₂) fluxes from an alpine meadow and a peatland on the
 Qinghai-Tibetan Plateau. It includes flux measurements from 45 plant
 species in the alpine meadow and 7 species in the peatland, collected
 during the peak growing season of 2023. The dataset records gas flux
 values (CH₄ and CO₂) derived from shoot-level enclosures, alongside key
 plant traits such as leaf area (LA_m²), dry biomass (DB), and
 environmental variables including temperature and treatment type (e.g.,
 control, warming treatments). Additional normalized flux metrics (fluxLA,
 fluxDB) are provided to facilitate cross-species and cross-treatment
 comparisons. Data are structured in a tabular format with metadata for
 closure time, gas type, fitting method, plant functional type (PFT),
 species, and experimental treatments. This dataset supports reuse in
 ecological modeling, meta-analyses on plant-mediated greenhouse gas
 fluxes, and studies on climate-ecosystem feedbacks. No legal or ethical
 restrictions apply; users are encouraged to cite the related research
 article when using the data.
description: # Data from: Morphological constraints on plant-mediated methane release
 and oxidation under experimental warming in a peatland and meadow on the
 Qinghai-Tibetan Plateau Dataset DOI:
 [10.5061/dryad.x95x69pz6](https://doi.org/10.5061/dryad.x95x69pz6) ##
 Description of the data and file structure This includes CH₄ flux values
 from the shoots of 45 plant species in the meadow and 7 species in the
 peatland, measured under ambient conditions and experimental warming
 treatments. Data values are reported as CH₄ flux rates in mg CH₄ per gram
 of shoot dry biomass per hour (mg CH₄ g⁻¹ h⁻¹). The dataset also
 incorporates results from shading and clipping experiments for key
 peatland species. The contents include species-level and family-level flux
 summaries, responses to experimental warming. This dataset has significant
 reuse potential for meta-analyses on wetland greenhouse gas fluxes, model
 parameterization for regional CH₄ budgets, and comparative studies on
 plant–microbe–soil interactions in cold-region ecosystems. ### Files and
 variables #### File: Flux.csv **Description:** This file contains measured
 plant-mediated methane (CH₄) and carbon dioxide (CO₂) flux data from an
 alpine meadow and a peatland on the Qinghai-Tibetan Plateau. The dataset
 includes flux observations across different plant species, plant
 functional types, and experimental warming treatments, along with
 corresponding environmental variables and plant trait measurements made
 during the chamber closures. ##### Variables | Variable Name | Description
 | Unit / Value Explanation | Abbreviation Explanation | |
 :----------------- |
 :---------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------ | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **closure\_start** | Timestamp indicating the start of the chamber closure measurement. | Format: YYYY/MM/DD HH:MM | - | | **gas** | The target gas species for the flux measurement. | `CH4`: Methane; `CO2`: Carbon Dioxide | - | | **method** | The algorithm used to calculate the gas flux from concentration data. | `expfit`: Exponential fit; `lmfit`: Linear fit | - | | **flux** | The raw calculated flux of the target gas. A negative value indicates uptake by the plant, and a positive value indicates emission. | µmol s⁻¹ | - | | **Treatment** | The experimental warming treatment applied to the plot. | `CK`: Control (Ambient); `AW`: Aboveground Warming; `BW`: Belowground Warming; `EW`: Entire Warming (combined above- and belowground) | - | | **PFT** | The plant functional type of the measured specimen. | `Sedge`: Sedges; `Forb`: Forbs | Plant Functional Type | | **species** | A unique code identifying the plant species. | `sc`, `ml`, `hbs`, `hrc`, `erwlc`, `ady`, `htltc` | `sc` is *Blysmus sinocompressus*, `ml` is *Carex muliensis*, `hbs` is *Carex myosuroides*, hrc is *Leontopodium alpinum, erwlc is Potentilla anserina, ady is Sanguisorba filiformis, htltc is Thalictrum scabrifolium* | | **temperature** | The air temperature recorded during the flux measurement. | Degrees Celsius (°C) | - | | **DB** | The dry biomass of the shoot portion enclosed in the chamber. | Grams (g) | Dry Biomass | | **LA\_m2** | The single-sided leaf area of the enclosed shoot. | Square Meters (m²) | Leaf Area | | **fluxLA** | The gas flux normalized by the leaf area of the measured shoot. | µmol m⁻² s⁻¹ | Flux per unit Leaf Area. | | **fluxDB** | The gas flux normalized by the dry biomass of the measured shoot. | µmol g⁻¹ s⁻¹ | Flux per unit Dry biomass | In this dataset, missing or inapplicable data values are explicitly indicated by the code: **NA.**