The Human Impacts Database
A collection of useful numbers for quantifying the impacts of the human presence on Earth.Mass of nitrogen needed for egg production
Atmospheric & Biogeochemical CyclesAgricultureThis quantity is a single measurement of the quantity at a given point in time (2000 – 2010).
Value: |
(2.5 ± 1.0) × 10-2 kg Nr / Mcal
see this value in other units
This is equivalent to... 25 ± 10 g Nr / Mcal |
|
HuID: | 18599 | |
Relevant Year(s): | 2000 – 2010 | |
Summary: | Mass of reactive nitrogen deposited as fertilizer needed to rear one megacalorie of eggs. See Fig 2 of source for more information. | |
Method: | Reported uncertainty is the standard deviation of the quantity given annually-averaged data over the years 2000 — 2010. The reported value was calculated using formal error propagation techniques given the reported uncertainties of the individual datasets. These uncertainties are in moderate agreement with those estimated using Monte Carlo based bootstrapping estimates. | |
Source: | Eshel, G., Shepon, A., Makov, T., Milo, R. Land, irrigation water, greenhouse gas, and reactive nitrogen burdens of meat, eggs, and dairy production in the United States. PNAS (2014) | |
Dataset: |
Resource requirements per Mcal of livestock product and staple crops (eshel2014_fig2_data.csv)
global resolution
| |
Original Data License: | PNAS Open Access License | |
Added By: | gchure |