Here, we hypothesized that primary productivity is limited by not only nutrients and simple light quantity but also light quality in nutrient-poor lakes. Then, we investigate factors influencing primary production by benthic phototrophic communities in shallow nutrient-poor lakes. We examine the ...
Here we report that, despite low dissolved iron concentrations (~0.1 nmol l1) across the whole gyre (3 stations located in the center and at the western and the eastern edges), primary productivity are only limited by iron availability at the border of the gyre, but not in the center. ...
i) The amount of biomass produced per unit area in a certain time period by plants through photosynthesis is defined as primary productivity. It depends upon the type of plant species associated with an ecosytem, photosynthetic capacity of these plants
, aboveground net primary productivity (ANPP) is limited primarily by water whereas at higher levels of precipitation, it is limited primarily by nitrogen... David,U.,Hooper,... - 《Biogeochemistry》 被引量: 692发表: 1999年 A global model of carbon, nitrogen and phosphorus cycles fo...
In the southern TS, part of the salty, N-limited, northward TS current (TSC) in the eastern part of the strait turns westward and eventually returns to the SCS. That is, the TS acts like a quasi-cul-de-sac during the NE monsoon season. Based on 822 samples from 28 cruises, the ...
productivity. Net marine primary productivity is the amount of organic material available to support the consumers (herbivores and carnivores) of the sea. The standing crop is the total biomass (weight) of vegetation. Most primary productivity is carried out by pelagic phytoplankton, not benthic ...
Iron supply has been suggested to influence phytoplankton biomass, growth rate and species composition, as well as primary productivity in both high and lo
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Kumar, S. P.et al. Is the biological productivity in the Bay of Bengal light limited?Cur. Sci.98(10), 1331–1339 (2010). ADSCASGoogle Scholar Narvekar, J. & Kumar, S. P. Seasonal variability of the mixed layer in the central Bay of Bengal and associated changes in nutrients and ch...
In arid and semi-arid ecosystems, such as the steppe in this study, productivity is primarily limited by water availability25–27, so ecosystems are only limited by nitrogen when the soil water content reaches a critical level28. Thus, we may postulate that N addition-induced stimulation of ...