Microorganisms have played a critical role in geological processes and in the formation of
soils throughout the geological times. It is hypothesized that biological activity can also affect …

The observed decline in microbial abundance with increasing depth has been associated to
various environmental factors. Meanwhile, the role of geometrical constraints and soil …

Field data show that cell counts decrease with sediment depth. Suggested limiting factors
include age, high temperature, low porosity and a lack of water, nutrients or energy. This …

Boundary layer flow characteristics and sediment permeability control pathways and
magnitude of material exchange in the surface layer of aquatic sediments. In fine-grained …

The understanding of soil behavior during the last 300 years has centered on mechanical
principles, geological processes, and later on, mineralogy and the relevance of colloidal …

The application of microbiological processes for improvement of the physical properties of
soils offers the promise of sustainable, cost effective, non-disruptive ground improvement for …

Purpose Sediment erosion and transport is a governing factor in the ecological and
commercial health of aquatic ecosystems from the watershed to the sea. There is now a …

New, exciting opportunities for utilizing biological processes to modify the engineering
properties of the subsurface (eg strength, stiffness, permeability) have recently emerged …

Almost all natural sediment deposits support the growth of microbial assemblages. On
occasions these assemblages become sufficiently developed to be recognisable as …

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