Fig. 5
From: Recovery of Sphagnum from drought is controlled by species-specific moisture thresholds
Relationship between biomass moisture content and net ecosystem exchange (NEE) of two Sphagnum species before drought and after: (a) (S. palustre) and (b) (S. squarrosum) panels show the relationship between moisture content and NEE from controls and droughted microcosms during the drying phase of the experiment. Segmented regression models indicate that there is an asymmetric relationship, with an optimum moisture content for both species (dashed vertical line), above and below which NEE declines, but at different rates. This point is different for each species. (c) Shows both species after rewetting, and how the relationship between moisture and NEE breaks down after drought.
