Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"sediment biogeochemistry"”.
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Short term effects of hypoxia and anoxia on sediment biogeochemistry
… and little information is available on nutrient sediment-water fluxes and rates of key biogeochemical processes. This study aimed to evaluate the oxygen concentration at which harmful effects start to occur, the rates that the system responds to different levels of oxygen saturation in the …
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An Examination of the Legal, Social, and Environmental Issues That Surround the Restoration of Tidal Hydrology in Edisto Beach, South Carolina
… coastal wetlands, including altered vegetation, sediment biogeochemistry, water quality, sediment inputs, fish and wildlife populations, recreational use, and potential future uses. There is an increasing interest to wetland hydrology restoration. Wetland restoration is a complex process that …
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Effects of anthropogenic and natural disturbance on sedimentary organic matter quantity, nutritional quality and degradation in river, lagoon, and coastal marine ecosystems
… anthropogenic and natural disturbances on sedimentary organic matter (OM) quantity, biochemical composition, nutritional quality, and C degradation rates, with the aim of exploring the magnitude and direction of changes in the benthic trophic status of river, lagoon, and coastal marine …
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Effects of burrowing sandprawns (Callichirus kraussi) on urban estuarine water quality
… endobenthic crustaceans, affects water flow, sediment biogeochemistry and benthic-pelagic fluxes through bioturbation and bioirrigation. Their elaborate burrow systems may act as biological filters for pelagic microalgae, but they may also be a source of nutrient-rich excrement inputs into the …
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Dispersal and remineralisation of biodeposits: Ecosystem impacts of mussel aquaculture
… constituent particles. Consequently they cause sedimentation of material that might otherwise not be deposited. The benthic remineralisation of biodeposits increases sediment oxygen demand and nutrient regeneration, thus enhancing the benthic-pelagic coupling of nearshore ecosystems. In New …
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Marine stressor and receptor interactions: A new approach to incorporate multiple stressor impacts into marine spatial management
Soft sediment benthic ecosystems are highly productive habitats which provide humans with a variety of valued resources and ecosystem services globally. However, coastal environments are subject to ongoing and increasing levels of anthropogenic stress which urgently needs to be quantified and …
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The Geomorphic Influence of Agricultural Land Use on Stream Hydraulics and Biological Function
… Such disturbances often result in increased fine sediment input to the stream along with direct changes in channel structure. The study described here was designed to quantify stream geomorphic changes associated with agriculture and their influence on reach scale transient storage hydraulics and …
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Effects of anthropogenic land use on temperate mangrove forests
… structure and physicochemical parameters in sediments. Highlighting the integrated nature of anthropogenic impacts, this chapter emphasizes the need for holistic evaluations in assessing responses of complex natural systems to change. The second chapter investigates environmental controls on …