yes there is. First you need to enable -console via steam launch settings then in game huit F5 and type devcommands hit enter then type removedrops and hit enter.

BEWARE this will delete any loose items on the ground. Even if its within player build areas.

Also note as far as I understand after a set amount of time items dissapear under these conditions. A set amount of time has passed I dont remember, not within 20?meters of player build structures and finally not withing loading distance of a current player.