Abstract It is concluded from this analysis that, from the practical standpoint, the best of the four methods used for compiling local volume tables is the "conventional" graphic method using Dwight's correction. One of the chief advantages of this method is its simplicity. An inexperienced compiler can see and weigh more readily the significance of the various changes and adjustments necessary as the work progresses. More over, because a local volume table, in which only the three variables, volume, diameter, and height are used, in itself allows for the varying factor of taper, it is to be preferred wherever sufficient data can be obtained to construct one. If the preliminary analysis shows that an insufficient number of trees has been measured to define clearly the volume over diameter curve for each height class; and, furthermore, if it is impossible to obtain additional measurements, advantage may be taken of one of the other methods in which all the data are used together in locating a single average curve, i.e., the Ezekiel-Bean method with Bruce's adjustment, or the "fan-curve" method.
Mulloy et al. (Fri,) studied this question.