Biogeochemistry

Principal Investigator

Data: CO2, Nitrogen and Marsh Elevation Experiment

Data from this experiment is managed according to our Data Management Plan, and is freely available to the public provided the source of the data is attributed to the Smithsonian Environmental Research Center. Permission to use the data is not required, but we request that you alert us when you download data from this site so that we can track data use. We encourage you to discuss your intended application of the data with us, because there are many nuances that may complicate your analysis. Please contact Pat Megonigal (megonigalp@si.edu, 443-482-2346) or Genevieve Noyce (noyceg@si.edu, 443-482-2351).

Learn more about the marsh elevation experiment

Visit the Global Change Research Wetland homepage

View all downloadable data from the Global Change Research Wetland

Plant Production and Chemistry

1 Raw data has been subjected to QA/QC and is presented without further data reduction. Derived data has been calculated from the raw data files provided here using the SAS code. All files are .xlsx format.
Dataset Description Data Type1 Dataset Code

Total Shoot Density and Biomass

Derived

CO2xN Total Shoot Biomass 2005-2024

SAS

Root Biomass by Category 2005

Derived

CO2xN Total Root Biomass 2005 (This dataset is complete and is no longer updated)

SAS

Root Production by Category 2006-present

Derived

CO2xN Root Biomass by Category 2006-2024

SAS

Grass and Non-Sedge Density & Biomass

Derived

 CO2xN Non-Sedge Shoot Biomass 2005-2024

SAS

Sedge (Scirpus) Density & Biomass

Derived

 CO2xN Sedge Shoot Biomass 2005-2024

SAS

Sedge (Scirpus) Density

Raw

 CO2xN Master SC Density 2005-2024

N/A

Sedge (Scirpus) Dimensions

Raw

 CO2xN Master SC Census 2005-2024

N/A

Sedge (Scirpus) Allometry

Raw

CO2xN Master Harvest  2005-2016 (This dataset is complete and no longer updated)

N/A

Grass & Non-Sedge Biomass & Density

Raw

CO2xN Master C4 Harvest 2005-2024

N/A

Root Ingrowth Core Mass

Raw

CO2xN Master Root Ingrowth 2005-2024

N/A

Shoot C, 13C, N, 15N Content

Raw

CO2xN Master Shoot CN 2006-2018

N/A

Root C, 13C, N, 15N Content

Raw

 CO2xN Master Root CN 2006-2018

N/A

Physical and Chemical Data

1 Raw data has been subjected to QA/QC and is presented without further data reduction. Derived data has been calculated from the raw data files provided here using the SAS code.
Dataset Description Data Type1 Dataset Code

Porewater Chemistry

Raw

CO2xN Porewater (2005-2023)

N/A

Meteorological Data

Raw

GCReW Meteorological Data 1986-2019 (Published 2020-10-03)

N/A
Soil Elevation Data Raw CO2xN Master SET Data (2005-2019) N/A