Environmental Change Research Centre, University College London, Pearson Building, Gower Street, London, WC1E 6BT United Kingdom
Environmental Change Research Centre, University College London, Pearson Building, Gower Street, London, WC1E 6BT United Kingdom
NERC Isotope Geosciences Laboratory, Kingsley Dunham Centre, Keyworth, Nottingham, NG12 5GG United Kingdom ; School of Geography, University of Nottingham, Nottingham, NG7 2RD United Kingdom
Department of Geography, College of Earth and Environmental Science, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000 China