A Developing Method for Directional Virtual Fencing (DVF~(TM)) and Real Time Range Management Using Remote Sensing, GIS, and GPS

摘要

New technologies have progressed in recent years to the point where capabilities exist to permit development of real-time rangeland management systems. Various possibilities are available for estimating total forage production using multispectral remote sensing capabilities and spectra] indices. Optimum utilization requires herbivores to be moved in a timely manner commensurate with the landscape's productivity and facilitated by a Directional Virtual Fencing (DVF~(TM)) device. DVF~(TM) combines Global Position System (GPS) technology and electro-mechanically produced directional cues in an innovative approach to control free-ranging animal location and direction of movement in a humane and reproducible manner in realtime. A geographically referenced Virtual Boundary (VB~(TM)) programmed into the unit's Geographic Information System (GIS) is combined with the GPS data to determine when a VB~(TM) is approached and when to move the animal away from the VB~(TM). Development, testing, validation, and improvement of the total system is ongoing at the 783km~2 USDA-ARS Jornada Experimental Range in southern New Mexico.