1 Norwegian Institute of Bioeconomy Research (NIBIO), 1431 Ås, Norway. CEES, Department of Biosciences, University of Oslo, Blindern 0316, Oslo, Norway. hongyanghy@gmail.com hxj369@nju.edu.cn.
2 School of Geographic and Oceanographic Science, Xianlin Campus, Nanjing University, Nanjing 210023, China. hongyanghy@gmail.com hxj369@nju.edu.cn.
3 Department of Geography, University College London, London WC1E 6BT, UK.
4 Norwegian Institute of Bioeconomy Research (NIBIO), 1431 Ås, Norway.