Development of a subsoil map (mapping of pyroclastic flow deposits in subsoil) and its utilization for the evaluation of agro-productivity

cambio estructural cartografia cartographie cartography changement structurel crop yield japan japon remolacha azucarera rendement des cultures rendimiento de cultivos sol de moyenne altitude sous-sol structural change subsoil subsuelo suelo de altura sugarbeet topografia topographie topography upland soils