'Soil resource' presentation slideshows

681 views • 38 slides

Balancing Biomass for Bioenergy and Conserving the Soil Resource

Balancing Biomass for Bioenergy and Conserving the Soil Resource. Jane Johnson USDA-ARS- North Central Soil Conservation Research Laboratory. Introduction. Energy paradigm is changing from petroleum to mixed renewable Sufficient energy available, but in diffuse form

461 views • 33 slides

Gross Primary Production

Gross Primary Production. Net photosynthesis at the ecosystem scale is GPP = Carbon Input to Ecosystems. = Sum of Ps over space and time. Levels of control Controls in individual leaves Control by canopy processes Controlling factors Direct controls: CO 2, light

471 views • 26 slides