CN_mass_data {NitrogenUptake2016}

Data: Nutrient concentrations, stable isotope ratios, and biomass from destructive mesocosm harvests

Description

Data: Nutrient concentrations, stable isotope ratios, and biomass from destructive mesocosm harvests

Usage

CN_mass_data

Format

A dataframe with 1192 observations of 16 variables:

time

Time point of harvest (harvested at one-week intervals)

new.core.id

Unique mesocosm identifier, including species (SA or DS) and mesocosm number

depth_bottom

Depth at bottom of sample (only applicable for belowground data)

sample.type

Sample material; tissue type

interval

Depth interval for sample; indicates the top and bottom depths (e.g., an entry of "5_10" covers the depth interval from 5-10 cm)

pool_label

Label for each pool (combination of "sample.type" and "depth_bottom")

id

Same as "pool_label" but with mesocosm ID included

species

Spartina alterniflora (SA) or Distichlis spicata (DS)

d15n

15-N isotope ratio in per mille units

n_pct

Nitrogen content, decimal fraction (0.015 = 1.5 percent)

d13c

13-C isotope ratio in per mille units

c_pct

Carbon content, decimal fraction (0.015 = 1.5 percent)

total_volume_cm3

Total volume of interval (only applicable for belowground data)

depth_top

Depth at top of sample (only applicable for belowground data)

sample.type2

Simplified "sample.type" column; leaf numbers dropped, and belowground stems included as "stems"

g_core

Total mass (grams) in entire pool; corrects for subsampling of depth intervals

References

Hill, T.D., N.R. Sommer, C.R. Kanaskie, E.A. Santos, A.J. Oczkowski. 2018. Data and source code from: Nitrogen uptake and allocation estimates for Spartina alterniflora and Distichlis spicata. Data In Brief. 21: 466-472. https://doi.org/10.1016/j.dib.2018.09.133.

Hill, T.D., N.R. Sommer, C.R. Kanaskie, E.A. Santos, A.J. Oczkowski. 2018. Nitrogen uptake and allocation estimates for Spartina alterniflora and Distichlis spicata. Journal of Experimental Marine Biology and Ecology 507: 53-60. https://doi.org/10.1016/j.jembe.2018.07.006.

Examples

### export to .csv:
write.csv(CN_mass_data, file = file.path(tempdir(), "CN_mass_data.csv"))