Table 2 Overview of variables included in the dataset on the national water footprints of crop production.

From: Water footprints and crop water use of 175 individual crops for 1990–2019 simulated with a global crop model

 

Variable

Unit

Description

1

crop_code

 

Crop code

2

crop_name

 

Crop name

3

country_code

 

Country code

4

country_name

 

Country name

5

year

yr

Year of harvest (crop can be planted and harvested in different years)

6

harvarea_ha

ha yr−1

National harvested area

7

irrigated_harvarea_fraction

 

Fraction of harvested area under irrigation

8

production_t

t yr−1

National crop production

9

crop_yield_t_ha

t ha−1 yr−1

Crop yield

10

wfg_m3_t

m3 t−1 yr−1

Green unit water footprint

11

wfb_cr_m3_t

m3 t−1 yr−1

Blue unit water footprint from capillary rise

12

wfb_i_m3_t

m3 t−1 yr−1

Blue unit water footprint from irrigation

13

wf_tot_m3_t

m3 t−1 yr−1

Total unit water footprint (sum of 10–12)

  1. Country and crop naming and codes are aligned with FAOSTAT33.