Sentence examples for primary production over from inspiring English sources
Primary production over the Bering Shelf exhibits a strong seasonal variability with an earlier phytoplankton bloom in spring (May–June) and a decrease in summer (July August) [67, 68].
Particulate matter from large volcanic eruptions may release enough iron and other nutrients to the surface ocean to stimulate primary production over short time scales (Watson 1997; Olgun et al. 2011).
Prochlorococcus and Synechococcus picocyanobacteria are dominant contributors to marine primary production over large areas of the ocean.
Syntheses of satellite chlorophyll and field data indicate that climate change and/or climatic oscillations are responsible for changes in mean chlorophyll concentration and primary production over recent decades [16], [18], [20], [21].
The importance of iron as a nutrient in the oceans was first recognized by Martin [1] and later experiments verified that iron limits primary production over broad regions of the marine environment [2] [4].
The heat wave of 2003, for example, caused a reduction of approximately 30% to the gross primary production (GPP) over Europe (Ciais et al. 2005).
The bulk of the terrestrial conversion of CO2-to-carbohydrates is done by C3 plants, which account for over three quarters of global primary production and for over 90% of Earth's plant species (Still and Berry, 2003).
Considerable progress has been made in understanding the controls over primary production and its variation across the Arctic landscape.
Such climatic differences associated with their influences over primary production may have significant impacts on soil respiration on spatial and temporal scales.
For our analysis, we assumed primary production to be constant over the study period, due to incomplete temporal coverage in the SeaWiFS dataset.
While the level of primary production may have declined over the past 50 years concomitant with an observed reduction in the global chlorophyll concentration [25], the spatial patterns are thought to have been consistent at global scale [26].
