almost 4 years ago - Shurenai - Direct link
No. Nothing actually Removed from the game world respawns. If you chop down a tree and don't plant a sapling in it's place, it's gone for good.

The only exception to this is that starting a quest at a location will reset the POI the quest is at.

You also can re-grow grass iirc by digging up the top layer and planing a new layer of the forest ground terrain piece (Cant remember the name currently.)