New Compatible Estimators for Survivor Growth and Ingrowth from Remeasured Horizontal Point Samples
نویسندگان
چکیده
Forest volume growth between two measurements is often decomposed into the components of survivor growth (S), ingrowth (Z), mortality (M), and cut (C) (for example, Beers 1962 or Van Deusen et al. 1986). Net change between volumes at times 1 and 2 (V, V,) is then represented by the equation
منابع مشابه
Compatible Basal Area and Number of Trees Estimators from Remeasured Horizontal Point Samples
FRANCIS A. ROESCH, JR. EDWIN J. GREEN CHARLES T. SCOTT Compatible groups of estimators for total value at time 1 (VI), survivor growth (S), and ingrowth (I) for use with permanent horizontal point samples are evaluated for the special cases of estimating the change in both the number of trees and basal area. Caveats which should be observed before any one compatible grouping of estimators is ch...
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