Nine Douwes Dekker School of Geography, Earth and Environmental SciencesPhD student Contact details AddressSchool of Geography, Earth and Environmental SciencesUniversity 麻豆精选 Edgbaston Birmingham B15 2TT UK Nine Douwes Dekker is a PhD candidate in Physical Geography, supervised by Prof Sami Ullah on a project titled: "Identifying tipping points regulating greenhouse gas emission from soils at two forest free air CO2 enrichment experiments". Doctoral research SupervisorProfessor Sami Ullah