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A vegetation-based modeling framework for estimating ecosystem respiration across land uses


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Created: Jun 01, 2026 at 8 p.m. (UTC)
Last updated: Jun 01, 2026 at 11:50 p.m. (UTC)
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Abstract

This HydroShare resource contains the complete R code, intermediate outputs, and analysis products used in the study entitled “A vegetation-based modeling framework for estimating ecosystem respiration across land uses.”
The workflow consists of two primary R scripts.

1. The first script (01_Data_Preparation_and_RecoBase.R) prepares input datasets, merges satellite and flux observations, and derives the baseline ecosystem respiration component (Reco_base).
2. The second script (02_Fitting_and_Analysis_Integrated.R) performs site-specific parameter optimization, ecosystem respiration simulation, model evaluation, bias analysis, time-series diagnostics, parameter distribution analysis, and seasonal supplementary analyses.

The generated outputs are organized into numbered directories corresponding to major analytical steps:
01_Site_Map: Locations of all study sites.
02_Fitting_and_Simulation: Optimized model parameters and simulated Reco datasets.
03_Model_Comparison_Scatter: Scatter plot comparisons between observed and modeled Reco.
04_Bias_Analysis: Quantitative bias metrics by land-use category.
05_Bias_Barplots: Visualization of model bias statistics.
06_TimeSeries_Comparison: Site-level time-series comparisons and diagnostic plots.
07_Parameter_Error_Analysis: Parameter summaries and error analyses.
08_Parameter_PDF_Density: Probability density distributions of fitted parameters.
09_Seasonal_Supplementary_Figures: Seasonal governing-factor analyses and soil moisture-temperature coupling figures.

The original eddy covariance observations used in this study were obtained from the AmeriFlux networks. Satellite-derived vegetation products, including MODIS-based datasets, were acquired from available NASA data repositories.
This resource is intended to support transparency, reproducibility, and future methodological development related to ecosystem respiration modeling and carbon-cycle research.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
United States
North Latitude
50.4872°
East Longitude
-64.4238°
South Latitude
23.6873°
West Longitude
-129.2871°

Temporal

Start Date:
End Date:

Content

How to Cite

Chun, B. (2026). A vegetation-based modeling framework for estimating ecosystem respiration across land uses, HydroShare, http://www.hydroshare.org/resource/eb3214dae709402591cf9bf1aec8131a

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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