ABSTRACT 



Reports results of a survey made of logging operations 

 to estimate the volume of logging residues in relation to 

 the volume of saw logs harvested in Arizona and New 

 Mexico. Results show: conversion factors that can be 

 applied to product volume to estimate total removals from 

 inventory; residue volume as a percentage of saw log vol- 

 ume; the relative importance of felling and skidding as 

 causes of residues; and the numbers of trees removed 

 from growing stock inventory by logging. Survey methods 

 and reliability of data are discussed. 



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