The phosphorus (P) cycle is closely coupled to the carbon cycle. In order to understand controls on riverine P yields, I used a stepwise regression of various parameters, such as precipitation, temperature, runoff, population density and relief. The results indicate that riverine P yields are not affected by any single factor, but precipitation and population density can explain up to 44% of the variability in the DRP yield of the East Asian rivers.The resulting cell pellet was resuspended in 1 mL of P-bearing medium, and the optical density of the mixture was measured at 600 nm using a Spectronic 20 Genesys spectrophotometer. The washed culture was added to the flasksanbsp;...
|Title||:||Chemical Weathering: Theoretical Models, Field Study in the Yellow River Basin, and Laboratory Study of Microbially-mediated Basalt and Granite Weathering|
|Publisher||:||ProQuest - 2008|