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New Zealand Journal of Forestry (1978) 23(1): 95–106
©New Zealand Institute of Forestry

Research article
An example of the use of a two-phase sampling design for reconnaissance inventory in tropical forest

I.D. Hutchinson

A two-phase stratified random sampling design (as developed by the United States Forest Service) was used in south-eastern Paraguay for a reconnaissance inventory to estimate areas and wood volumes over a region some 6 million ha in size. Details of its use are presented to illustrate the suitability of the design in forest areas where little prior information is available to assist inventory planning.
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