INVENT: 

 FOREST INVENTORY SYSTEM FOR NEW HAMPSHIRE LANDOWNERS 



by 

 D. S. Linden and J. P. Barrett* 



INTRODUCTION 

 INVENT Is a computerized forest inventory processing system designed 

 for New Hampshire landowners. INVENT was designed with the following five 

 goals in mind: 



1. Produce a system that will analyse all sampling designs and methods 

 presently in wide use throughout the State. 



2. Produce output tables easily understood by foresters and landowners — 

 output tables that look as if they were designed by a forester, not 



a computer. 



3. Find and implement volume equations that are well adapted to the 

 New Hampshire species — calculate both board-foot and cubic-foot 

 volumes . 



A. Indicate the reliability of volume estimates. 



5. Produce a system that any forester can use and understand — a system 

 available to all foresters at low cost. 



The realization of these goals is the result of two years work in close coopera- 

 tion with consulting foresters, county foresters, and forest industry. As a 

 result. New Hampshire foresters have "been emancipated from the drudgery and 

 limitations of computation and can concentrate on forest data needs." (Davis 

 1966, p. 282). 



The use of INVENT is made available by the Institute of Natural and 

 Environmental Resources at the University of New Hampshire. Institute personnel 

 will process data from tally sheets submitted by subscribing foresters. Persons 

 interested in using the system should contact Professor James Barrett at I.N.E.R., 

 University of New Hampshire. 



This publication is written in four separate sections. Section 1 contains 

 all the information a field forester needs to know to utilize the service. 

 Section 2 describes how the data is computer coded and how the program is run. 

 Section 3 documents the computer program itself with subroutine descriptions 



*Graduate Research Assistant and Professor of Forest Resources, Institute of 

 Natural and Environmental Resources, respectively. 



