Fire in lichen-rich subarctic tundra changes carbon and nitrogen cycling between ecosystem compartments but has minor effects on stocks oleh R. J. Heim, A. Yurtaev, A. Bucharova, A. Bucharova, W. Heim, W. Heim, V. Kutskir, K.-H. Knorr, C. Lampei, A. Pechkin, D. Schilling, F. Sulkarnaev, N. Hölzel