SAMPLING WITH PARTIAL REPLACEMENT EXTENDED TO INCLUDE GROWTH PROJECTIONS

The original theory of Sampling with Partial Replacement (SPR) is modi fied to incorporate growth model projections of the unmatched plot dat a on the initial measurement, The Modified Sampling with Partial Repla cement (MSPR) theory is illustrated by estimating growth and current v olume using simulated plot data, In addition to the assumptions requir ed by SPR, MSPR requires that the growth projection errors be random a nd have a mean of zero, If these assumptions ave met, the modified the ory improves the precision of the volume and growth estimators over th e original SPR estimator.