- Sources of other associated data are as follows: GPP also derived from PML_V2 dataset. Irrigation area data of China from Dong et al. (https://doi.org/10.1038/s41597-022-01522-z). The land cover map of the drylands in 2015 with a spatial resolution of 1 km was obtained from Resource and Environment Science and Data Center (https://www.resdc.cn/DOI/DOI.aspx?DOIID=54).
- Given the multiple precipitation and ET datasets, there are 9 data combinations for calculating additional water availability and 3 combinations for calculating WUE. We used the ensemble median values to characterize the results and analyze the uncertainty.