At the same time, while it was permitted at planting time to build traps to prevent animals from damaging the irrigation or crops, these had to be removed after the harvest.
「國家公園」範圍之外，也有禁令，農民春耕時，常有禽獸出沒危害水利、農作，因此可以設阱擭、溝瀆防止它們侵入；但秋收之後，陷阱一定得拆除，動物才不至斷後。