| Tree planting | การปลูกต้นไม้ [TU Subject Heading] |
| 緑化 | [りょっか(P);りょくか, ryokka (P); ryokuka] (n, vs) greening (i.e. planting to increase greenery); tree planting; afforestation; (P) #17,287 [Add to Longdo] |
| 自然木 | [しぜんぼく, shizenboku] (n) naturally growing tree; tree that does not grow in a tree plantation [Add to Longdo] |