A Study on the Accuracy and Precision of Estimation of the Number, Basal Area and Standing Trees Volume per Hectare Using of some Sampling Methods in Forests of NavAsalem
Abstract:The present study aimed to investigate the accuracy and precision estimation of the number, basal area and volume of the standing trees by methods of random and systematic random sampling in the forests of West Guilan. The cost or inventory time was determined using the criteria (E% × T). Inventory was carried out by complete sampling (census) in an area of hectares. The study area (section , district , Nav forests, Asalem) was divided into rectangular plots ( m× m) and each plot was measured separately. Measu… Show more
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