Dataset
Nutrient Network. A cross-site investigation of bottom-up control over herbaceous plant community dynamics and ecosystem function. - Experiment 247
Net ecosystem exchange measurements throughout the 2020 growing season across an N fertilization gradient
Years Available: 2019
Principle Investigators
View All Experiment and Dataset Methods
Environmental Data Initiative data package
| EDI Package ID | DOI |
|---|---|
ATTRIBUTES
| Field | Name | Definition | Unit | Code |
|---|---|---|---|---|
| 1 | year | Year of measurment | ||
| 2 | year_trt | number of years of fertilization treatment | nominalYear | |
| 3 | julian_day | day of year. note that these data were taken in a leap year, this has been taken into account | day | |
| 4 | trt | treatment designation (N addition or Control) | Control=0g N added, N=any amount of N added | |
| 5 | nitrogen_added_to_plot | amount of N added to the plot annually | gramsPerSquareMeter | |
| 6 | block | experimental block | ||
| 7 | plot | experimental plot | ||
| 8 | NEE_hyp | Net ecosystem exchange at 800 micro mols per meter squared per second of incoming photosynthetically active radiation (PAR), estimated using a hyperbolic model | microMolesPerSquareMeter | |
| 9 | r2_hyp | R squared value of the NEE hyperbolic model | dimensionless | |
| 10 | ER | ecosystem respiration, which is equal to NEE at PAR = 0 (i.e. no incoming light) | microMolesPerSquareMeter | |
| 11 | GPP | gross primary productivity, calculated by subtracting NEE from ER | microMolesPerSquareMeter |
SAMPLE DATASET
| year | year_trt | julian_day | trt | nitrogen_added_to_plot | block | plot | NEE_hyp | r2_hyp | ER | GPP |
|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 13 | 101 | Control | 0 | 1 | 11 | -0.67977068 | 0.437744318 | 1.065590047 | 1.745360727 |
| 2020 | 13 | 101 | Control | 0 | 2 | 13 | -0.194106504 | 0.968955698 | 0.098437241 | 0.292543745 |
| 2020 | 13 | 101 | N | 1 | 1 | 9 | 0.384859874 | 0.115488762 | 0.741756481 | 0.356896607 |
| 2020 | 13 | 101 | N | 1 | 2 | 20 | -0.421207359 | 0.996683167 | 0.219421785 | 0.640629144 |
| 2020 | 13 | 101 | N | 5 | 1 | 5 | -0.818117516 | 0.95323732 | 0.866123825 | 1.684241341 |
| 2020 | 13 | 101 | N | 5 | 2 | 17 | 0.204494416 | 0.113495769 | 0.334205263 | 0.129710847 |
| 2020 | 13 | 101 | N | 10 | 1 | 7 | -1.208297327 | 0.807183264 | 0.38908989 | 1.597387217 |
| 2020 | 13 | 101 | N | 10 | 2 | 24 | -1.379101928 | 0.912535961 | 1.602543254 | 2.981645182 |
| 2020 | 13 | 101 | Control | 0 | 3 | 26 | -0.183340583 | 0.92912134 | 1.592633237 | 1.77597382 |
| 2020 | 13 | 101 | Control | 0 | 4 | 39 | 0.996775162 | 0.584861777 | 3.176940472 | 2.18016531 |
| 2020 | 13 | 101 | Control | 0 | 5 | 58 | 0.333070444 | 0.909417997 | 0.092036343 | -0.241034102 |
| 2020 | 13 | 101 | N | 1 | 3 | 29 | 0.605839221 | 0.054183522 | 0.195172971 | -0.41066625 |
| Download dataset azze247 Nutrient Network. A cross-site investigation of bottom-up control over herbaceous plant community dynamics and ecosystem function.: Net ecosystem exchange measurements throughout the 2020 growing season across an N fertilization gradient | ||
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