Making Your Food Pyramid

 

 Type of Biome AverageAnnual Net Primary Productivity (t km-2 y-1)  Average Biomass of Biome Kg per m^2    total biomass in t(tonnes?)
Tundra  140  0.6  608 =  365/.6
Desert  90  0.7    
Grassland  600  1.6    
Coniferous Forest  800  20    
Deciduous Forest  1250  32.5    
Tropical Rain Forest  2200  45    

from http://www.arts.ouc.bc.ca/conted/onlinecourses/geog_111/labhelp/lab9.html