CWT-LTER Data Set Summary

Accession: 1158 CWT Research Theme: Organic Matter/Decomposition
Contributors: Jennifer D. Knoepp, Jim Clark, Cindi Brown, Jason Love, , Greg Zaussen, Katie Bower, Joel Scott, Jason Meador
Title: Measurements of leaf litter Carbon and Nitrogen from the Coweeta LTER Terrestrial Gradient sites, Coweeta Hydrological Laboratory, Otto, NC
Abstract: This project was started by Haines and Crossley in 1992 to compare leaf litter weights among the five gradient plots (though data from the first collections were not included in this dataset because the original dataset did not represent a complete quarter of collection). Litter is collected from ten 91.4 x 91.4 cm leaf collectors within each of the gradient plots. Litter is collected on a quarterly basis (monthly in the autumn). The litter is then separated by category, dried, weighed, and processed in a Wiley mill for later carbon and nitrogen analyses. Since the project first started, the collection process has expanded to include non-leaf litter (e.g., lichens, bark, and seeds), fine twigs (0-2.5 cm diameter), and medium twigs (2.5-10 cm diameter).
Key Words: biomass, carbon, leaf fall, leaf litter, nitrogen, Primary Production, Movement of Organic Matter, twigs, woody debris
LTER Core Area: Movement of Organic Matter
CWT Themes: Organic Matter/Decomposition, General Nutrient Chemistry
Study Type: Coweeta Terrestrial Study
Study Period: 01-Jul-1994 to 30-Mar-2014
Site References:
WS18 -- Watershed 18, North Carolina, USA
WS27 -- Watershed 27, North Carolina, USA
CWTBASIN -- Coweeta Basin, Macon County, North Carolina, USA
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Data Table: 1158_C_N (Leaf litter carbon, nitrogen, 1158, 1700)

Access: Public (released 03-Apr-2018)

Metadata: Text (ESA FLED), Basic EML, Complete EML

Data Formats: Spreadsheet CSV Text Format, EML-described Text Format, Tab-delimited Text Report with Statistical Summary, GCE Data Toolbox Format, Standard MATLAB Variables Format

Column List:

Column Name Units Type Description (hide)
1 Year YYYY integer Year of collection
2 Collection_Year none integer Year since study began
3 Quarter none integer Quarter of collection
4 Site none integer Terrestrial gradient site number
5 Type none alphanumeric string Category of leaf litter
6 Sample_Wt mg floating-point Weight of sub sample analyzed for C & N
7 %C % floating-point Percent carbon in sample
8 %H % floating-point Percent hydrogen in sample
9 %N % floating-point Percent nitrogen in sample
10 Comments none alphanumeric string Comments regarding sample