CLUZ plugin for QGIS v3
CLUZ (Conservation Land-Use Zoning software) is a QGIS plug-in that allows users to design protected area networks and other conservation landscapes and seascapes. It can be used for on-screen planning and also acts as a link for the Marxan conservation planning software. It was developed by Bob Smith, from the Durrell Institute of Conservation and Ecology (DICE), and funded by the UK Government's Darwin Initiative.
More details about CLUZ are available here http://anotherbobsmith.wordpress.com/software/cluz/