Fig. 4
From: A global dataset of remote sensing-based soil critical point and permanent wilting point

Spatial distribution of the (a) PWP from GSDE (%), (b) PWP from TG (%), (c) CP from Fu (m3/m3), (d) mean values by longitude based on PWP (m3/m3) calculated in this study and other PWP products, and (e) mean values by longitude based on CP (m3/m3) calculated in this study and CP of Fu. The subgraphs in panels a, b and c show the probability density function (PDF).