# Title of Datasets: Precipitation manipulation experiments may be confounded by water source

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File contains data dictionary to accompany data files for a research study.  



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## Description of the Data and file structure



Data file name: 3x2x2 factorial dataset.csv



Dataset is for a 3x2x2 factorial field experiment (factors: rainfall variability, mowing seasons, mowing intensity) conducted in northern mixed-grass prairie vegetation in eastern Montana, USA.  Data include activity of 5 plant available nutrients, soil pH, and plant biomass metrics.  Data from 2018.



variable info:

plot (plot number: 1 through 60)

seas (mowing season treatment: June, October)

mow (simulated grazing intensity treatment: mower's blade height: 4 or 10 cm)

precip (precipitation treatments: 70% of ambient precipitation [rainout shelter], 100%= ambient, 130%= tap water additions)

NO3-N (nitrate concentration, detection limit= 2, micro grams/10cm2/burial length) 

Ca (calcium concentration, detection limit= 2, micro grams/10cm2/burial length)

P (phosphorus concentration, dection limit= 0.2, micro grams/10cm2/burial length)

Fe (inron concentration, detection limit= 0.4, micro grams/10cm2/burial length)

S (sulfur concentration, detection limit= 2, micro grams/10cm2/burial length)

pH (soil pH from soil samples used to estimate enzyme activity)

total (total above-ground biomass= current + old, kg per ha)

current (current= current year's above-ground biomass, kg per ha)

old (old= standing dead above-ground biomass from prior growing season, kg per ha)



missing data are depicted with "NA".



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## Description of the Data and file structure



Data file name: water quality dataset.csv



Water properties (pH and common dissolved solids) of samples from Yellowstone River collected near Miles City, Montana.

Data extracted from Rinella MJ, Muscha JM, Reinhart KO, Petersen MK (2021) Water quality for livestock in northern Great Plains rangelands. Rangeland Ecol. Manage. 75: 29-34.



variable info:

Date (water sampling date [month, day, year format])

water origin (place identifier)

pH (water pH)

calcium (water calcium ppm)

iron (water iron ppm)

sodium (water sodium ppm)

sulfur (water sulfur ppm)

nitrate (water nitrate ppm)



## Sharing/access Information

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