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A bibliography of hydrological, geomorphological, sedimentological, biological and hydrochemical references to the Institute of Hydrology experimental catchment studies in Plynlimon
hydrological sedimentological geomorphological Hydrology experimental
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2009/6/8
This bibliography provides a backdrop to the environmental research completed within the context of the Plynlimon catchment study area. It includes the bibliography produced by Kirby et al. in 1991 pl...
A view of water quality from the Plynlimon watershed
water quality Plynlimon watershed
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2009/6/8
A summary of hydrochemical research in the Plynlimon catchments from 1983 to the present is related to identifying water flow pathways within catchments and the modelling of soil and stream water acid...
Critical loads for soils and freshwaters：a comparison methods at the Plynlimon catchments
Critical loads freshwaters Plynlimon catchments soils
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2009/6/8
International agreements aimed at reducing sulphur deposition from the atmosphere are now focused on the "critical loads" concept. This provides a distributed link between sources and receptors of aci...
Predicting soil acidification trends at Plynlimon using the SAFE model
soil acidification trends Plynlimon SAFE model
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2009/6/8
The SAFE model has been applied to an acid grassland site, located on base-poor stagnopodzol soils derived from Lower Palaeozoic greywackes. The model predicts that acidification of the soil has occur...
Acid neutralization capacity measurements in surface and ground waters in the Upper River Severn, Plynlimon：from hydrograph splitting to water flow pathways
Acid Neutralization Capacity water flow pathways hydrograph splitting
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2009/6/8
Acid Neutralization Capacity (ANC) data for ephemeral stream and shallow groundwater for the catchments of the upper River Severn show a highly heterogeneous system of within-catchment water flow path...
Continuous pH, electrical conductivity and temperature measurement at Plynlimon：towards an integrated, reliable and low maintenance instrument system
Water quality Continuous pH temperature measurement electrical conductivity
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2009/6/8
Water quality data for the Nant Tanilwyth stream, Plynlimon (an acidic upland stream, the waters of which are of such low ionic strength that measurement is difficult), has been recorded using a new i...
Scale dependence of the episodic hydrochemical response of nested catchments at Plynlimon
surface water chemistry nested catchments forested catchments
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2009/6/8
Previous monitoring of the surface water chemistry of the forested catchments at Plynlimon has concentrated on weekly measurements. Hence, peak values and details of the rapid changes in chemistry occ...
Boron water quality for the Plynlimon catchments
Boron water quality Plynlimon catchments
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2009/6/8
Boron concentrations in rainfall, throughfall and stemflow for Spruce stands, mist, streamwater and groundwater are compared with chloride to assess atmospheric sources and catchment input-output bala...
The hydrochemistry of the headwaters of the River Severn, Plynlimon
hydrochemistry Water quality River Severn
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2009/6/8
Water quality data spanning 13 years and covering an extensive range of major, minor and trace elements in rain and stream waters at Plynlimon in mid Wales, are presented. Rainfall water chemistry is ...
Trends and seasonality in stream water chemistry in two moorland catchments of the Upper River Wye, Plynlimon
stream water chemistry Upper River Wye moorland catchments
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2009/6/8
Stream water chemistry in the Cyff and Gwy subcatchments within the headwaters of the River Wye has been monitored regularly since 1980. In the Gwy, which is a predominantly semi-natural grassland ca...
Major, minor and trace element composition of cloudwater and rainwater at Plynlimon
cloudwater rainwater Plynlimon
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2009/6/8
The composition of cloudwater samples collected at Plynlimon, Mid Wales by the Institute of Hydrology is described based on one of the most comprehensive chemical records for deposition in the UK. Com...
Fish populations in Plynlimon streams
Plynlimon streams Fish populations
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2009/6/8
In Plynlimon streams, brown trout (Salmo trutta L.) are widespread in the upper Wye at population densities of 0.03 to 0.32 fish m-2 and show evidence of successful recruitment in most years. In the u...
Water temperature of Plynlimon streams
Water temperature Plynlimon streams
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2009/6/8
Water temperature data were collected from five stations in the upper Severn system. Temperatures were compared between a stream with a 335 ha catchment after it had flowed for c. 1.5 km through clea...
Dynamics of river sediments in forested headwater streams：Plynlimon
river sediments Plynlimon British upland catchments forest cycle
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2009/6/8
Long term studies of fluvial sediment processes in the Plynlimon catchments have contributed to the assessment and quantification of plantation forestry impacts in British upland catchments, at all s...
Direct measurement of evaporation from grassland at Plynlimon
Direct measurement evaporation grassland
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2009/6/8
Over the last decade there has been some uncertainty over the calculation of "actual" catchment evaporation from the long-term difference between rainfall and runoff for the grassland Wye catchment at...