| 2281 | Turkish Journal of Field Crops | 35 | X | Null |
| 2282 | Turkish Journal of Fisheries and Aquatic Sciences | 48 | X | Clay |
| 2283 | Turkish Journal of Zoology | 39 | X | Clay |
| 2284 | Turkiye Entomoloji Dergisi | 33 | X | Null |
| 2285 | Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki | 12 | Y | Null |
| 2286 | Ukrainian Antarctic Journal | 8 | Y | Null |
| 2287 | Ukrainian Food Journal | 14 | Y | Null |
| 2288 | Uludag Aricilik Dergisi | 12 | Y | Null |
| 2289 | Uniciencia | 27 | Y | Null |
| 2290 | Universal Journal of Agricultural Research | 11 | Y | Null |
| 2291 | Urban Agriculture and Regional Food Systems | 25 | Y | Null |
| 2292 | Urban Forestry and Urban Greening | 92 | W | Platinum |
| 2293 | Ursus | 46 | X | Clay |
| 2294 | US Department of Agriculture, Forest Service - Resource Bulletin | 3 | Y | Null |
| 2295 | USDA Forest Service - General Technical Report PNW | 8 | Y | Null |
| 2296 | USDA Forest Service - General Technical Report RMRS-GTR | 10 | Y | Null |
| 2297 | USDA Forest Service - Research Note PNW-RN | 6 | Y | Null |
| 2298 | USDA Forest Service - Research Note RMRS-RN | 3 | Y | Null |
| 2299 | USDA Forest Service - Research Papers PNW-RP | 3 | Y | Null |
| 2300 | USDA Forest Service - Resource Bulletin PNW-RB | 3 | Y | Null |