Bias analysis of modified estimator of N-tree method for estimating stand density and crown cover area in Zagros Forests

Since N-tree sampling methods produce biased estimate, bias evaluation should be applied to N-tree estimator. The purpose of this study is to assess the N tree distance sampling method bias with modified estimator Kleinn and Vilcko in estimating number per hectare and canopy cover in Zagros forests....

Full description

Bibliographic Details
Main Authors: حمدالله صادقی, سودابه گراوند, ایمان ظفریان
Format: Article
Language:fas
Published: Iranian Society of Forestry 2016-09-01
Series:مجله جنگل ایران
Subjects:
Online Access:http://www.ijf-isaforestry.ir/article_38841_ae2e747c40ce23a294d3e8be9185d6df.pdf