equation,which is established by introducing H and an H-based adjustment factor into the NRH equation,described better the PLR curves of P.anserina and E.nutans than the original ones.The results may provide an effective method to estimate the net primary productivity of grasslands in the study...
N comprises one of the most important limiting nutrients in plant growth and the net primary productivity of terrestrial ecosystems1,2. In forests, more than 40% of N of trees is stored within the leaves3 and foliar N exerts positive effects on their photosynthetic efficiencies and relative ...
Soil K was shown to have direct positive effects on both Nmassand Narea, which has not been a focus in previous foliar N studies. K is a key element as an activator of the many enzymes that are essential for photosynthesis and respiration and as a contributor to the osmotic potential of ...
Under certain conditions of nutrient limitation (for example in the oligotrophic regions in the center of subtropical gyres), the availability of trace metals, principally iron, becomes limiting. A proposal by the late Prof. John Martin that oceanic productivity could be enhanced by adding iron has...
Brown and Foster (1987)noted that Eq.(6)gave results that were approximately 12% less than those from Eq.((1)forrainfall intensitiesbelow 35mm hr.−1and approximately 2% greater for intensities greater than 100mm hr.−1. The primary purpose of theBrown and Foster (1987)study was to ...
The mass balance equation describing the dissolved inorganic carbon content of river water is solved for varying conditions of net community productivity, alkalinity, temperature, atmospheric exchange, and accrual of groundwater carbon to give COconcentration throughout the day. Without accrual of ground...
President of INFORMS/Spreadsheet Productivity Group, advisory board member of Mercy College MBA/Strategic Consulting Institute, and hospital board member of Coordinated Health. Rick is best known and referred to as an expert in precise and clear analytical modeling for physician and hospital economics....
Here are some key tips for doing this: It's helpful to actually be quantitative. Assign numbers to the variables in the equation. Let's say you're rating the person's credibility, reliability, authenticity and self interest on a scale of 1 to 10. See where you net out (and of course...
for the initiation of a gully (Torri et al., 2012a,b;Torri and Poesen, 2014and references therein). Such thresholds are evaluated based on the combination of primary and secondary topographic attributes, especially those ones controlling water and sediment redistribution. In addition, GIS coupl...
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