Controlling sediment and phosphorus transfer to receiving waters – A strategic management perspective for England and Wales

Mainstone, C.P.; Dils, R.; Withers, P. J. A.

doi:10.1016/j.jhydrol.2007.10.035

Cited by 48 publications

(36 citation statements)

References 47 publications

(43 reference statements)

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“…following years of excessive fertiliser inputs (Heathwaite et al, 2006;Withers et al, 2001;Withers et al, 2007), which may be exacerbated by land-use conflicts Valle Junior et al, 2014) and accelerating rates of terrestrial erosion (Mainstone et al, 2008;McHugh, 2007). The delivery of these materials to hydrological networks is augmented by the relatively low filter resistance and restricted potential for temporary storage in these small catchments.…”

Section: Introductionmentioning

confidence: 99%

Dominant mechanisms for the delivery of fine sediment and phosphorus to fluvial networks draining grassland dominated headwater catchments

Perks

Owen

Benskin

et al. 2015

Science of The Total Environment

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. (2015) 'Dominant mechanisms for the delivery of ne sediment and phosphorus to uvial networks draining grassland dominated headwater catchments.', Science of the total environment., 523 . pp. 178-190. Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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Section: Introductionmentioning

confidence: 99%

Dominant mechanisms for the delivery of fine sediment and phosphorus to fluvial networks draining grassland dominated headwater catchments

Perks

Owen

Benskin

et al. 2015

Science of The Total Environment

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“…Quantification of change in riparian cover is also important in terms of assessment and prediction of effects of agricultural and land management policies and practices, for example, the development and effectiveness of buffer zones for nutrient control (Ducros & Joyce, 2003;Howard-Williams & Pickmere, 2010;Mainstone, Dils, & Withers, 2008;Stockan, Langan, & Young, 2012) and concerns over fine sediment inputs to rivers affecting fish populations (Kemp, Sear, Collins, Naden, & Jones, 2011). Statutory agencies, therefore, need evidence to develop vegetation management policies along river corridors (Collins et al, 2010;Defra, 2012).…”

Section: Introductionmentioning

confidence: 99%

Evidence of increase in woody vegetation in a river corridor, Northwest England, 1984–2007

Hooke

Chen

2015

Journal of Maps

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Based on observations on rivers in England over a 30-year period, it was hypothesised that the extent of woody vegetation in riparian areas has increased in many locations. Methods to map and measure changes in vegetation cover from aerial photographs were developed and tested on a 5 km reach of the River Dane in Northwest England. Riparian vegetation was divided into seven classes, and these were mapped from aerial photographs of four dates, 1984, 1996, 2001 and 2007. The results indicate an increase from 9% woody vegetation cover in the river corridor in 1984 to 32% cover in 2007, with a 40-fold increase in areas of mature woody vegetation. The results have implications for river processes, because of effects on bank erosion and sediment supply, and for land management policies, with grazing control hypothesised to be a major cause of the changes.

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“…3094 P. Jordan and R. Cassidy: Assessing a 24/7 solution for monitoring water quality loads to annual loads in rivers (Greene et al, 2011), low frequency monitoring may be insufficient to monitor these transfers. This has potentially serious implications as competent authorities are charged with implementing agricultural mitigation measures within legislation and monitoring the benefits at catchment scale (Mainstone et al, 2008). Expectations of change from these national programmes, which in many countries are based on descriptive means of (up to) monthly sampling in rivers, may then be unrealised due to sampling strategies which are inadequate to identify change associated with mitigation effects.…”

Section: Introductionmentioning

confidence: 99%

Technical Note: Assessing a 24/7 solution for monitoring water quality loads in small river catchments

Jordan

Cassidy

2011

Hydrol. Earth Syst. Sci.

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Abstract. Quantifying nutrient and sediment loads in catchments is difficult owing to diffuse controls related to storm hydrology. Coarse sampling and interpolation methods are prone to very high uncertainties due to under-representation of high discharge, short duration events. Additionally, important low-flow processes such as diurnal signals linked to point source impacts are missed. Here we demonstrate a solution based on a time-integrated approach to sampling with a standard 24 bottle autosampler configured to take a sample every 7 h over a week according to a Plynlimon design. This is evaluated with a number of other sampling strategies using a two-year dataset of sub-hourly discharge and phosphorus concentration data. The 24/7 solution is shown to be among the least uncertain in estimating load (inter-quartile range: 96 % to 110 % of actual load in year 1 and 97 % to 104 % in year 2) due to the increased frequency raising the probability of sampling storm events and point source signals. The 24/7 solution would appear to be most parsimonious in terms of data coverage and certainty, process signal representation, potential laboratory commitment, technology requirements and the ability to be widely deployed in complex catchments.

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Controlling sediment and phosphorus transfer to receiving waters – A strategic management perspective for England and Wales

Cited by 48 publications

References 47 publications

Dominant mechanisms for the delivery of fine sediment and phosphorus to fluvial networks draining grassland dominated headwater catchments

Dominant mechanisms for the delivery of fine sediment and phosphorus to fluvial networks draining grassland dominated headwater catchments

Evidence of increase in woody vegetation in a river corridor, Northwest England, 1984–2007

Technical Note: Assessing a 24/7 solution for monitoring water quality loads in small river catchments

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