Exploring the nexus of geoecology, geography, geoarcheology and geotourism : advances and applications for sustainable development in environmental sciences and agroforestry research : proceedings of the 1st Springer Conference of the Arabian Journal of Geosciences (CAJG-1), Tunisia 2018 /: advances and applications for sustainable development in environmental sciences and agroforestry research : proceedings of the 1st Springer Conference of the Arabian Journal of Geosciences (CAJG-1), Tunisia 2018. ([2019])