Phytoplankton population dynamics are controlled by the relative rather than absolute timescales of mixing, growth, and loss processes such as sedimentation, grazing, and so on. Here, the vertical distribution and biomass of phytoplankton populations are quantified by two timescale ratios: the Peclet number Pe—the ratio of mixing and sedimentation timescales—and the growth number G—the ratio of...

In this study, the responses of Dissolved Air Flotation (DAF), sedimentation, and sand filtration treatment processes on feed water with varied algal concentrations were investigated, based a technical–economic analysis using data collected from drinking plant (DWTP) in Guangxi, China. Cost-effective for sources algae proposed. The results showed that DAF was able to achieve almost 95% removal ...

In this manuscript we perform detailed analytical and numerical studies of the physical processes that result from the interaction between the dust and gas components of a protostellar accretion disk. We consider the most favorable condition for dust sedimentation in a laminar gaseous background and look at the conditions that precede the onset of gravitational and shear instability. We adopt a...

Localized tephra deposition in marine sequences is the product of many complex primary and secondary depositional processes. These can significantly influence the potential applicability of tephra deposits as isochronous marker horizons and current techniques, used in isolation, may be insufficient to fully unravel these processes. Here we demonstrate the innovative application of X-ray microto...

Forest soils are shaped by various processes, like runoff, erosion, sedimentation and bioturbation. A better understanding of the interactions between abiotic biotic soil-forming including wild boar (Sus scrofa) rooting (i.e., subsurface foraging), enhances adequate management forest ecosystems. We hypothesized that intense soil influences occurrence boars modify outcome process redistributing ...

In convergent systems, the interplay between tectonics, erosion, and sedimentation controls orogenic evolution. The nature of interactions these factors is still elusive due to complex feedbacks that operate across different temporal spatial scales. Here, we investigate with analog models landscape evolution designed account for both tectonic forcing surface processes, using a water-saturated g...

Land degradation and soil erosion in the upper catchments of tropical lakes fringed by papyrus vegetation can result in a sediment load gradient from land to lakeward. Understanding the dynamics of clonal modules (ramets and genets) and growth strategies of plants on such a gradient in both space and time is critical for exploring a species adaptation and processes regulating population structu...