Abstract
Explicit linkages between various levels of regeneration stocking and yield have been assumed for most of the last century but have rarely been quantified. There are many variations in methodology for measuring stocking, but the implications for yield prediction of employing different methods are poorly understood. For the purpose of yield prediction, contrasts are drawn here between several variations on two basic regeneration survey methodologies: stocked quadrats and the British Columbia Ministry of Forests’ well-spaced survey system. Curve shape and dispersion for the relationships between survey summary statistics and yield varied dramatically by varying survey parameters such as quadrat size and the maximum number of tallied well-spaced trees. Also of importance is the stand height at which yield is assessed. Finally, it is critical to standardize survey parameters so that summary statistics are consistently comparable.
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