Modelling the Dynamics of Weed Management Technologies
No hay miniatura disponible
Fecha
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
Descripción
An appropriate economic framework for valuing the benefits of weed management technologies is to treat
weeds as a renewable resource stock problem. Consequently, the weed seed bank is defined as a renewable
resource that changes through time due to management and seasonal conditions. The goal of decision-makers is
to manage this (negative) resource so as to maximise returns over some pre-specified period of time. A
modelling framework is presented for evaluating the biological and economic effects of weed management. The
framework includes population dynamics, water balance, crop growth, pasture growth and crop/pasture rotation
models for measuring the physical interactions between weeds and the environment. These models link in with
numerical optimal control, dynamic programming and stochastic dynamic programming models for
determination of optimal decision rules and measuring economic impact over time of policy scenarios.