Yu, G., Jia, Y., He, N., Zhu, J., Chen, Z., Wang, Q., Piao, S., Liu, X., He, H., Guo, X., Wen, Z., Li, P., Ding, G. and Goulding, K. W. T. 2019. Stabilization of atmospheric nitrogen deposition in China over the past decade. Nature Geoscience. https://doi.org/10.1038/s41561-019-0352-4
Lehmann, J., Skjemstad, J., Sohi, S., Carter, John, Barson, M., Falloon, P., Coleman, K., Woodbury, P. and Krull, E. 2008. Australian climate-carbon cycle feedback reduced by soil black carbon. Nature Geoscience. 1, pp. 832-835. https://doi.org/10.1038/ngeo358