© 1964 by Institute of Chartered Foresters
Developments in Yield Control and Inventory in British Forestry
Forestry Commission Management Section
Forecasting timber production many years in advance has become a problem of considerable importance in this country because of the need to co-ordinate the rapid increase in production with the establishment of new timber-using industries. This paper describes a change in emphasis in state forest Working Plan Inventory methods employed in the predominantly young, coniferous forests of Great Britain and is a development of the methods described in a previous paper (‘Problems of Yield Control and Inventory in British Forestry’—D. R. Johnston, 1960, Forestry, 33, 19–36). Total enumeration of the growing stock is no longer the main objective of forest inventory and the new approach is directed towards (a) assessment of the productive potential of each subcompartment and (b) the intensive enumeration of sample or ‘index’ subcompartments initially and at each re-enumeration as a check on growth predictions and yield control.