Nutrient cycling models
A model of the nutrient cycles in ecosystems; circles represent nutrient stores and arrows nutrient transfers Nutrient cycling models for ecosystems across the world (after Gersmehl, 1976). Note: this figure, and also Figure 4.15 (=Whittaker’s climograph), use temperature and precipitation to indicate levels of GPP, rather than carbon sequestration per se. The largest terrestrial carbon store is..
