Periodic fires are an integral part of the rangeland ecology but when the rangeland is still dominated by native grasses fires occur in some areas at average intervals of every 60 to 110 years.

• 周期性的野火构成了牧场生态的一个组成部分。在以本地草种为主的牧场里，有些地区平均每60-110年发生一次野火；