Variability of particle size distribution with respect to inherent optical properties in Poyang Lake, China.

摘要: Suspended particulate matter plays a significant role in the studies of sediment fluxes, phytoplankton dynamics, and water optical properties. This study focuses on relationships between particle size distribution (PSD), water’s inherent properties (IOPs), constituents. We investigated complex waters Poyang Lake, largest freshwater lake China, wet dry seasons during 2008–2011. Because distinct temporal–spatial variation these parameters also demonstrate seasonal regional variability. The range concentration suspended is 0.32–69.08 mg/l, with mean value 22.21 mg/l. median season much larger than that season. Junge fits PSD Lake very well scope 6.21–331 μm. Furthermore, slopes from 3.54 to 4.69, 4.11, steepest (>4.5) occurring around Songmen Mountain Island northern waterway. A negative correlation was found (Dv50) mass-specific absorption coefficient at 443 nm [apm(443)] for both seasons. Identical analogous waters, spectral correlate attenuation coefficient, but different fitted formulas. In season, can better explain variability scattering while explained by apparent density. However, no similar results were addition, backscattering correlated slope, bulk refractive index calculated ratio slope indicate composition Lake. Overall, knowledge IOPs gained this broadens our understanding optics highly turbid columns.