Table 4 Comparison of production WF for 15 main crops to other global studies7,35 in cubic kilometers (km3).
From: A global dataset of the national green and blue water footprint of livestock feeds
Crops | ∆ harvested area 1996/05 to 2015/19 | This study | Mialyk et al. | Mekonnen & Hoekstra | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2015–2019 | 2015–2019 | 1996–2005 | ||||||||||
GWF_R | GWF_I | GWF_t | BWF_I | GWF_t | BWF_I | BWF_t | GWF_R | GWF_I | GWF_t | BWF_I | ||
Barley | −15% | 115 | 8 | 123 | 7 | 86 | 5 | 7 | 163 | 10 | 173 | 11 |
Cassava | 62% | 122 | 1 | 123 | 0 | 101 | 0 | 1 | 99 | 0 | 99 | 0 |
Groundnuts | 25% | 75 | 11 | 87 | 12 | 108 | 7 | 7 | 71 | 13 | 84 | 5 |
Maize | 38% | 716 | 119 | 834 | 68 | 699 | 51 | 58 | 493 | 104 | 597 | 51 |
Millet | −13% | 110 | 2 | 111 | 2 | 98 | 1 | 2 | 119 | 5 | 124 | 2 |
Potatoes | −9% | 45 | 6 | 51 | 12 | 53 | 8 | 9 | 51 | 9 | 60 | 10 |
Rapeseed | 42% | 83 | 12 | 95 | 6 | 81 | 6 | 10 | 62 | 4 | 66 | 9 |
Rice | 7% | 340 | 444 | 784 | 190 | 425 | 226 | 268 | 301 | 378 | 679 | 202 |
Seed cotton | −2% | 97 | 63 | 160 | 63 | 115 | 62 | 63 | 90 | 41 | 131 | 75 |
Sorghum | −4% | 160 | 7 | 167 | 7 | 162 | 8 | 9 | 160 | 11 | 171 | 6 |
Soybean | 60% | 614 | 24 | 638 | 11 | 497 | 5 | 12 | 328 | 24 | 351 | 12 |
Sugarbeet | −26% | 14 | 2 | 16 | 7 | 15 | 5 | 6 | 17 | 4 | 21 | 6 |
Sugarcane | 34% | 146 | 69 | 215 | 64 | 199 | 71 | 72 | 95 | 85 | 180 | 74 |
Sunflower seed | 25% | 97 | 2 | 98 | 2 | 98 | 2 | 5 | 74 | 4 | 78 | 4 |
Wheat | 0% | 554 | 157 | 711 | 162 | 600 | 108 | 129 | 610 | 150 | 760 | 204 |
Total 15 crops | 14.7% | 3287 | 925 | 4213 | 611 | 3337 | 567 | 657 | 2733 | 840 | 3573 | 672 |
