 (Schipper 1993:168) When natural or human catastrophes occurred, the peasants could take refuge in non-arable regions of mountains and survive on wild foods other than grains.
<clarity>  (Schipper 1993:168) When natural or human catastrophes occurred, the peasants could take refuge in non-arable regions of mountains and survive on wild foods other than grains.
 When natural or human catastrophes occurred, the peasants could take refuge in non-arable regions of mountains and survive on wild foods other than grains.