CWT-LTER Data Set Summary

Accession: 1113 CWT Research Theme: Ecohydrology
Contributors: James S. Clark, Jason Love
Title: Manual soil moisture measurements from ten artificial forest gaps at the Coweeta Hydrologic Laboratory, North Carolina, 2000-2018
Abstract: Ten artificial forest gaps were created in March 2002 at Coweeta, following two years of pretreatment data collection. Experimental gaps were created by pulling canopy trees with a winch until they were down. Trees, saplings, and seedlings were censused and tracked as part of a demography study. Soil moisture data was collected during the growing season as an explanatory variable for tree survivorship and mortality.
Key Words: Coweeta LTER, disturbance, forest disturbance, forest gaps, gaps, soil moisture, time domain reflectometry, water content
LTER Core Area: Primary Production
CWT Themes: Population and System Dynamics, Water Quality and Quantity, Ecohydrology, Disturbance and Land Use, Soil Moisture
Study Type: Coweeta LTER Long Term Monitoring
Study Period: 27-Jun-2000 to 16-Aug-2018
Site References:
WS27 -- Watershed 27, North Carolina, USA
CWTBASIN -- Coweeta Basin, Macon County, North Carolina, USA
» View/Download data set geography: Google Maps, Google Earth
Data References: 1114
Project References: Forest gap continuous soil moisture
Downloads: 

Data Table: 1113 (Manual Soil Moisture measurements 2000-2018, 30913)

Access: Public (released 10-Feb-2015)

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 data collection
2 Gap_Site none alphanumeric string Gap site where data are collected
3 Plot none integer Seed basket number that corresponds to 1x2-m plot where soil moisture measurements are taken
4 Flag_Plot none alphanumeric string QA/QC flags for Seed basket number that corresponds to 1x2-m plot where soil moisture measurements are taken (flagging criteria, where "x" is Plot: x<1="I", x>13="I", x<1="Q", x>13="Q")
5 Replicate none integer Replicate number at each plot.
6 Flag_Replicate none alphanumeric string QA/QC flags for Replicate number at each plot. (flagging criteria, where "x" is Replicate: x<1="I", x>2="I", x<1="Q", x>2="Q")
7 Date mm/dd/yyyy alphanumeric string Date of soil moisture measurements
8 Time hh:mm alphanumeric string Time soil moisture data were collected (daylight saviings time, 24 hours)
9 TDR ┬Ásec floating-point Time domain reflectometry value from Tectronix 1502C
10 VWC_TDR % floating-point Calculated volumetric water content from TDR mesurements
11 Flag_VWC_TDR none alphanumeric string QA/QC flags for Calculated volumetric water content from TDR mesurements (flagging criteria, where "x" is VWC_TDR: x>0.6="I", x<0.05="Q", x>0.5="Q")
12 VWC_Hydrosense % floating-point Volumetric water content of mineral soil from Hydrosense
13 Flag_VWC_Hydrosense none alphanumeric string QA/QC flags for Volumetric water content of mineral soil from Hydrosense (flagging criteria, where "x" is VWC_Hydrosense: x<0="I", x>70="I", x<5="Q", x>60="Q")
14 VWC_Hydrosense_II % floating-point Volumetric water content of mineral soil from Hydrosense II
15 Flag_VWC_Hydrosense_II none alphanumeric string QA/QC flags for Volumetric water content of mineral soil from Hydrosense II (flagging criteria, where "x" is VWC_Hydrosense_II: x<0="I", x>70="I", x<5="Q", x>60="Q")
16 Comments none alphanumeric string Comments regarding the data collection sample