Research Article
Analysis of the Changes in the Water Yield Coefficient over the Past 50 Years in the Huang-Huai-Hai River Basin, China
Table 2
Area of different LUC types in various type regions.
| Classification | Land use type | Average area (km2) | Average proportion (%) |
| | 1: arable land | 27337 | 18.14 | 2: woodland | 3686 | 2.45 | 3: grassland | 82239 | 54.56 | 4: water | 3592 | 2.38 | 5: urban land | 3253 | 2.16 | 6: unused land | 30630 | 20.32 | SUM | 150736 | 100.00 |
| | 1: arable land | 103399 | 27.17 | 2: woodland | 48223 | 12.67 | 3: grassland | 187406 | 49.25 | 4: water | 6310 | 1.66 | 5: urban land | 5413 | 1.42 | 6: unused land | 29801 | 7.83 | SUM | 380552 | 100.00 |
| | 1: arable land | 199367 | 44.03 | 2: woodland | 88983 | 19.65 | 3: grassland | 126654 | 27.97 | 4: water | 8097 | 1.79 | 5: urban land | 23947 | 5.29 | 6: unused land | 5725 | 1.26 | SUM | 452773 | 100.00 |
| | 1: arable land | 132504 | 54.93 | 2: woodland | 32208 | 13.35 | 3: grassland | 43039 | 17.84 | 4: water | 5924 | 2.46 | 5: urban land | 22106 | 9.16 | 6: unused land | 5453 | 2.26 | SUM | 241234 | 100.00 |
| | 1: arable land | 139954 | 72.49 | 2: woodland | 14465 | 7.49 | 3: grassland | 7570 | 3.92 | 4: water | 10558 | 5.47 | 5: urban land | 20401 | 10.57 | 6: unused land | 111 | 0.06 | SUM | 193059 | 100.00 |
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