Table 3 Cropland use and resource inputs (1987–2020) at the country and regional levels.
Unit: GJ | Year | China | NE | HHH | MLY | SC | NW & GW | SW | QT |
|---|---|---|---|---|---|---|---|---|---|
N-fertilizer (×106) | 1987 | 964.9 | 89.9 | 172.0 | 171.7 | 90.4 | 80.7 | 139.7 | 1.7 |
2009 | 116.4 | 107.4 | 302.3 | 322.1 | 81.0 | 161.5 | 184.3 | 2.7 | |
2020 | 859.8 | 90.4 | 210.5 | 210.8 | 57.5 | 146.8 | 140.8 | 1.7 | |
P-fertilizer (×106) | 1987 | 62.7 | 5.7 | 11.0 | 21.4 | 5.3 | 5.0 | 9.6 | 0.2 |
2020 | 198.0 | 22.9 | 52.9 | 42.2 | 11.7 | 36.9 | 29.5 | 0.4 | |
K-fertilizer (×106) | 1987 | 16.1 | 1.7 | 2.0 | 5.0 | 3.3 | 1.1 | 1.9 | 0.0 |
2020 | 128.2 | 15.5 | 33.3 | 27.9 | 10.9 | 19.1 | 19.4 | 0.2 | |
Machinery (×106) | 1987 | 297.9 | 27.2 | 81.7 | 125.0 | 14.6 | 27.2 | 14.1 | 1.3 |
2020 | 1052.3 | 117.5 | 217.4 | 238.0 | 45.4 | 140.0 | 271.0 | 14.4 | |
Fuel (×106) | 1987 | 811.6 | 74.0 | 222.5 | 339.3 | 39.7 | 74.0 | 38.3 | 3.4 |
2020 | 2867.2 | 320.3 | 592.2 | 649.5 | 123.7 | 394.3 | 738.7 | 38.6 | |
Pesticide (×106) | 1987 | 91.8 | 4.2 | 18.6 | 40.0 | 14.6 | 4.3 | 12.0 | 0.3 |
2020 | 157.6 | 18.3 | 33.0 | 52.3 | 17.5 | 15.0 | 21.3 | 0.2 | |
Seed (×106) | 1987 | 218.3 | 13.6 | 72.3 | 51.5 | 8.4 | 38.2 | 33.1 | 1.2 |
2020 | 205.8 | 16.4 | 69.9 | 48.0 | 4.7 | 32.6 | 33.3 | 1.0 | |
Manpower (×106) | 1987 | 291.4 | 30.5 | 72.9 | 82.2 | 21.7 | 34.8 | 48.4 | 0.9 |
2020 | 160.0 | 15.4 | 28.3 | 36.4 | 11.9 | 27.2 | 40.3 | 0.4 | |
Irrigation (×106) | 1987 | 21.5 | 1.3 | 3.2 | 7.0 | 2.5 | 4.7 | 2.6 | 0.2 |
2020 | 27.3 | 3.2 | 2.8 | 7.5 | 2.6 | 6.6 | 4.3 | 0.4 | |
Land use (×106 ha) | 1987 | 149.7 | 16.6 | 34.3 | 43.4 | 9.7 | 21.3 | 19.8 | 0.7 |
2020 | 182.9 | 25.8 | 36.0 | 43.8 | 8.6 | 31.1 | 29.7 | 0.9 |
