6 The agreed levels of the BAR [Annex F] [could] [should] be[, as a default,] set by using the average removals or emissions from forest management for historical base years or period.
最低限度标准的商定水平[附件F] [可] [应当] [默认]使用历史基准年或基准期森林管理平均清除量或排放量确定。