参考文献:
[1] Harris, I., Osborn, T. J., Jones, P., et al. Version 4 of the CRU TS monthly high-resolution gridded multivariate climate dataset [J]. Scientific Data, 2020, 7: 109.
     [2] Miralles, D. G., Holmes, T. R. H., De Jeu, R. A. M., et al. Global land-surface evaporation estimated from satellite-based Observations [J]. Hydrology and Earth System Science, 2011, 15: 453–469.
     [3] Cortés, J., Mahecha, M. D., Reichstein, M., et al. Where are global vegetation greening and browning trends significant? [J]. Geophysical Research Letters, 2021, 48: e2020GL091496.