| Table 20–Certification of reforestation and timber stand improvement acreages by region--fiscal year 1996 | |||||||||||
| Reforestation | Timber stand improvement | ||||||||||
| Artificial regeneration | Natural regeneration | Precom- | |||||||||
| With site | Without site | mercial | Fertili- | ||||||||
| Region | Planted | Seeded | preparation | preparation | Total | Cleaning | Release | thinning | zation | Pruning | Total |
| Acres | |||||||||||
| Northern (R-1) | 41,837 | 25 | 9,247 | 3,281 | 54,390 | 0 | 1,789 | 14,285 | 525 | 2,139 | 18,738 |
| Rocky Mountain (R-2) | 303 | 140 | 3,713 | 21,620 | 25,776 | 0 | 568 | 9,142 | 0 | 0 | 9,710 |
| Southwest (R-3) | 1,727 | 10 | 2,907 | 16,778 | 21,422 | 0 | 176 | 6,731 | 0 | 0 | 6,907 |
| Intermountain (R-4) | 7,655 | 0 | 6,165 | 11,496 | 25,316 | 0 | 876 | 10,023 | 0 | 0 | 10,899 |
| Pacific Southwest (R-5) | 15,134 | 0 | 50 | 378 | 15,562 | 0 | 37,570 | 25,447 | 742 | 529 | 64,288 |
| Pacific Northwest (R-6) | 52,430 | 258 | 7,523 | 25,333 | 85,544 | 254 | 3,384 | 24,742 | 3,901 | 1,819 | 34,100 |
| Southern (R-8) | 32,707 | 3,257 | 16,715 | 1,415 | 54,094 | 0 | 19,873 | 4,623 | 131 | 0 | 24,627 |
| Eastern (R-9) | 5,483 | 89 | 33,830 | 20,957 | 60,359 | 0 | 4,991 | 3,792 | 0 | 257 | 9,040 |
| Alaska (R-10) | 412 | 0 | 0 | 12,037 | 12,449 | 0 | 0 | 2,725 | 0 | 10 | 2,735 |
| Total | 157,688 | 3,779 | 80,150 | 113,295 | 354,912 | 254 | 69,227 | 101,510 | 5,299 | 4,754 | 181,044 |