Not much progress has yet been made in understanding cohesive sediment erosion threshold due to the inherent physical, chemical and biological/microbiological complexity of natural cohesive sediments. Further the debate of existence or nonexistence of cohesive sediment erosion threshold, and different definitions of threshold has resulted in complexity in use, interpretations and comparison of cohesive sediment threshold data. The paper presents a review on existing methodologies and definitions used for estimation of cohesive sediment erosion threshold; summarizes range of threshold shear stress obtained by different investigators based on field and laboratory experiments; and attempts to address the controversy regarding the existence of cohesive sediment erosion threshold. Further, the study also reports the dependence of cohesive sediment erosion threshold on cohesive sediment properties.
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Debnath et al. (2010) studied this question.
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