Satellite

Carbon sink

Algorithm

Composite number

Engineering

Ecology

Aerospace engineering

Biology

Carbon cycle

Computer science

Carbon fibers

Geology

Oceanography

Primary production

Physics

Climate change

Astronomy

Blue carbon

Biomass (ecology)

Environmental science

Primary (astronomy)

Carbon flux

Atmospheric sciences

Carbon dioxide

Biosphere

Carbon sequestration

Ecosystem

Science

Integrating conceptually similar models of the growth of marine and terrestrial primary producers yielded an estimated global net primary production (NPP) of 104.9 petagrams of carbon per year, with roughly equal contributions from land and oceans. Approaches based on satellite indices of absorbed solar radiation indicate marked heterogeneity in NPP for both land and oceans, reflecting the influence of physical and ecological processes. The spatial and temporal distributions of ocean NPP are consistent with primary limitation by light, nutrients, and temperature. On land, water limitation imposes additional constraints. On land and ocean, progressive changes in NPP can result in altered carbon storage, although contrasts in mechanisms of carbon storage and rates of organic matter turnover result in a range of relations between carbon storage and changes in NPP.

Primary Production of the Biosphere: Integrating Terrestrial and Oceanic Components