Principles of Environmental Science 8th Edition by William Cunningham,Mary Cunningham

تمرين 15

Which world ecosystems are most productive in terms of biomass (see fig. 3.28)? Which are least productive? What units are used in this figure to quantify biomass accumulation?
FIGURE 3.28: Biomass accumulates at different rates in the world's major ecosystem types. Differences in net primary production is chiefly due to temperature, rainfall, and nutrients. Interactions among species also boost productivity.