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.
Results
Showing 1 to 8 of 8 for “"catchment land use"”.
-
The effect of catchment land use on sediment input to Swartvlei
… lake water turbidity. To investigate the causes of this, land use and land management of the Swartvlei catchment area have been studied. Possible causes and the extent of accelerated runoff and sediment loss in different rainfall conditions were determined. Rainfall, water flow, Secchi disc …
-
Development of Biological Reference Conditions of Wadeable Streams in the Major Ecoregions and Subecoregions of Georgia
… sites, were chosen based on GIS analysis of catchment land use/land cover and riparian and instream physical habitat. Data were analyzed and values calculated for 59 candidate metrics. Individual metrics were evaluated both statistically and graphically for the ability to differentiate …
-
Empirical Relationships between Water Quality and Agricultural Land Use in Rural Maine
… eutrophication of freshwater lakes due to land use change is a growing global problem with economic consequences, such as a reduction in shoreline property value. Managing eutrophication is of utmost importance in Maine, USA due to the large number of inland fresh waterbodies and their …
-
Understanding the Effect of Climate and Hydrometeorological Extremes on Natural and Human-Induced Hydrosystems
… management. In response, this dissertation focuses on investigating the hydroclimatology of natural and modified basins across the contiguous United States. It has three research objectives: (1) to explain flow alterations due to anthropogenic activities, especially dam operations, in modified …
-
The impact of conifer plantation forestry on the ecology of peatland lakes
… reference conditions are still unknown in Ireland. Furthermore, they are under considerable threat in Ireland from a number of sources, particularly afforestation of their catchments by exotic conifers. Plantation forestry can potentially lead to the increased input of substances including …
-
Denitrification response to nutrient enrichment in New Zealand estuaries
As coastal catchment land use intensifies, estuaries receive increased nutrient and sediment loads, resulting in habitats dominated by muddy organic-rich sediments. Nutrient processing and denitrification in estuarine sediments represent important ecosystem functions regenerating nutrients for …
-
Response and resilience of estuarine benthic ecosystems to anthropogenic pressures
… global scales with largely unknown consequences. Catchment land-use changes increase the rates of delivery of fine sediments and nutrients to estuaries, resulting in increased suspended sediment concentrations (SSC) and eutrophication; this thesis investigates the response and resilience of …
-
Effects of anthropogenic land use on temperate mangrove forests
… human activities, resulting in increased land-derived stressors that can threaten the health and integrity of these systems. Mangrove forests are unique ecosystems that play a crucial role in filtering nutrients, retaining pollutants, and sequestering carbon. However, to what extent they …