Fig. 6: Threshold response histograms for groundwater-dependent vegetation.
From: Establishing ecological thresholds and targets for groundwater management
Threshold response histograms for groundwater-dependent vegetation (n = 289 polygons) exhibiting a significant negative (slope <0; p ≤ 0.05) ZNDVI and ZDTG relationship. a,b, Groundwater thresholds corresponding to ZNDVI ≤ −1 are reported as ZDTG thresholds (a) and DTG at vegetation (DTG at veg; in meters) (b). The 25th percentile (dashed line), median (solid line) and 75th percentile (dashed line) for ZDTG are 1.3, 1.8 and 2.5, respectively, and for DTG are 4.0 m, 7.9 m and 19.3 m, respectively.
