Wetland Resources of Eastern South Dakota
Table 5
Table 5. Acres of eastern South Dakota temporary, seasonal, and semipermanent basins by water regime and size class.
| Size Class
(ac) | Temporary | Seasonal | Semipermanent |
| | | | Na | Db | Ic |
| ≤0.5 | 87,056 (22%) | 42,128 (8%) | 623 (<1%) | 4,853 (2%) | 676 (<1%) |
| 0.5-1.0 | 56,116 (14%) | 40,025 (7%) | 1,518 (<1%) | 2,404 (1%) | 1,392(1%) |
| 1.0-2.0 | 68,852 (18%) | 65,736 (12%) | 4,599 (1%) | 4,505 (2%) | 2,742 (3%) |
| 2.0-5.0 | 84,036 (22%) | 132,525 (24%) | 18,225 (5%) | 18,706 (8%) | 7,135 (7%) |
| 5.0-10.0 | 43,949 (11%) | 108,086 (20%) | 30,098 (8%) | 29,769 (13%) | 9,819 (10%) |
| 10.0-100.0 | 50,045 (13%) | 156,577 (28%) | 176,463 (47%) | 124,098 (52%) | 45,424 (46%) |
| >100 | 0 (0%) | 8,441 (2%) | 146,134 (39%) | 52,735 (22%) | 32,223 (32%) |
a Natural semipermanent basins
b Basins with semipermanent water regimes due to presence of an excavated feature like a dugout
c Semipermanent impoundments
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