Fig. 4: Protection status of GDEs.
From: Groundwater-dependent ecosystem map exposes global dryland protection needs

The proportion of mapped GDEs with no protection (red) is 79%, with the remaining 21% having some degree of protection (blue and purple). GDEs shown in purple exist on protected areas or in jurisdictions with sustainable groundwater management policies. GDEs shown in blue are protected by both measures (protected area and sustainable groundwater management policy). GDE area density is shown in this figure at 30 arcsecond resolution (roughly 1 km grids).