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八三年,我们在西双版纳自然保护区调查规划和综合考察中,试用航空象片(配合地形图)两阶抽样方法进行森林资源调查,取得了预期效果,现将情况简述于后。
In 83 years, we conducted a forest resources survey using the two-stage sampling method of aerial photography (with topographic maps) in the planning and comprehensive investigation of the Xishuangbanna Nature Reserve. We have obtained the expected results.