The optimum time for a land improvement investment when both cost and benefits are changing is when the rate of change of benefits equals the rate of change of costs. This principle can be applied to selecting optimum weed-tree stands for control operations where stands are present in a variety of age classes. If the cost of the control method is fixed, older stands with zero rate of tree cover change represent optimal treatment areas, but if the cost of the control method increases with stand age, young stands represent optimal treatment situations. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020
Scholarly peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol. 1, 1948 up to 5 years from the current year. Formerly Journal of Range Management (JRM). More recent content is available by subscription from SRM.