Figure 4
From: Extreme climatic events down-regulate the grassland biomass response to elevated carbon dioxide
Connections between ECEs and ES of aboveground biomass in the summer harvest (H2). (a) shows the ES of the aboveground total biomass, (b) shows the ES of the aboveground grass biomass. Similar to Fig. 2, the ECEs are marked with red columns. For years with extreme [CO2] enrichment events, the columns have red dashed-borders. In both (a) and (b), the decreases of ES are marked by blue arrows. As one can see, for most years with ECEs, the ES of both total biomass and grass biomass decreased. Only one exception was found in 2006 for the total biomass.
