搜索结果: 1-13 共查到“水文学 controls”相关记录13条 . 查询时间(0.136 秒)
Sources and controls of calcium and magnesium in storm runoff：the role of groundwater and ion exchange reactions along water flowpaths
calcium magnesium groundwater ion exchange reactions
2009/6/8
A combined hydrological and chemical investigation was undertaken in a small moorland catchment at Plynlimon to determine the processes controlling storm runoff chemistry. Flow from natural soil pipe...
Soil moisture gradients and controls on a southern Appalachian hillslope from drought through recharge
Soil moisture watersheds
2009/5/27
Soil moisture gradients along hillslopes in humid watersheds, although indicated by vegetation gradients and by studies using models, have been difficult to confirm empirically. While soil properties...
Groundwater compartmentalisation：a water table height and geochemical analysis of the structural controls on the subdivision of a major aquifer, the Sherwood Sandstone, Merseyside, UK
Groundwater compartmentalisation Sherwood Sandstone water table height
2009/5/13
Compartmentalisation, the subdivision of an aquifer into discrete and relatively isolated units, may be of critical importance for the protection of groundwater although it has been largely ignored i...
Controls on runoff generation and scale-dependence in a distributed hydrologic model
Hydrologic response natural catchments
2009/5/13
Hydrologic response in natural catchments is controlled by a set of complex interactions between storm properties, basin characteristics and antecedent wetness conditions. This study investigates the ...
A conceptual investigation of process controls upon flood frequency：role of thresholds
flood frequency flood generation process
2009/5/12
Traditional statistical approaches to flood frequency inherently assume homogeneity and stationarity in the flood generation process. This study illustrates the impact of heterogeneity associated wit...
A conceptual investigation of process controls upon flood frequency：role of thresholds
rainfall-runoff flood
2009/5/8
Traditional statistical approaches to flood frequency inherently assume homogeneity and stationarity in the flood generation process. This study illustrates the impact of heterogeneity associated with...
Assessment of hydrological and seasonal controls over the nitrate flushing from a forested watershed using a data mining technique
seasonal controls nitrate flushing forested watershed
2009/4/29
A data mining, regression tree algorithm M5 was used to review the role of mutual hydrological and seasonal settings which control the streamwater nitrate flushing during hydrological events within a ...
Necessity to consider hydrological controls of biogeochemical cycling when developing a catchment-scale ecosystem model
hydrological controls catchment-scale ecosystem model biogeochemical cyclin
2009/4/2
In order to model the stream water chemistry in a forest catchment, the model should include functions describing both the biogeochemical cycle and the hydrological pathways as the transportation syst...
Sodium and chloride levels in rainfall, mist, streamwater and groundwater at the Plynlimon catchments, mid-Wales: inferences on hydrological and chemical controls
Sodium chloride rainfall mist
2009/3/24
Variations in sodium and chloride in atmospheric inputs (rainfall and mist), stream runoff and groundwater stores are documented for the upper Severn River (Afon Hafren and Afon Hore catchments), Plyn...
Controls on the fate and transport of methylmercury in a boreal headwater catchment, northwestern Ontario, Canada
methylmercury methylation hydrology boreal catchment
2009/3/17
The fate and transport of methylmercury (MeHg) were studied in a small boreal catchment. Hydrological processes largely govern the magnitude of the flux of MeHg. Seasonal and inter-annual variability ...
Hydrological processes and their seasonal controls in a small Mediterranean mountain catchment in the Pyrenees
Vallcebre catchments sedimentary rocks
2009/3/17
The Vallcebre catchments are located in a middle mountain area of the Pyrenean ranges, built up by sedimentary rocks and loamy soils. The vegetation cover is pastures and forests of Pinus sylvestris, ...
Hydrological controls on denitrification in riparian ecosystems
nitrous oxide denitrification
2009/3/6
Nitrous oxide fluxes and denitrification rates were measured in situ over a year at a riparian site in the UK. An exponential relationship was found between denitrification rates and soil moisture, wi...
Physical and biogeochemical controls of microaggregate dynamics in a tidally affected coastal ecosystem
Physical biogeochemical controls
2014/5/4
Tidal flat ecosystems exhibit pronounced tidal currents that cause high loads of suspended matter (SPM) and intense sedimentation. To identify systematic patterns of tidal SPM dynamics and the signifi...