Fig. 1: Sown species richness–productivity relationships through time.
From: Biodiversity–stability relationships strengthen over time in a long-term grassland experiment
The log-linear relationships between sown species richness and a aboveground net primary productivity (ANPP square root transformed prior to analysis) of the communities and b relative yield (ANPP divided by mean ANPP of monocultures in that year) of the communities are shown for each year (1 = 2003, 17 = 2019). c The slope of the log–log relationship (power exponent b of curves shown in b) corresponding to the increase in biomass per added species relative to the mean ANPP of all monocultures for each year. d The change in ANPP of the communities over time relative to their ANPPs in year 1 for each sown species richness level 1–16.
