The effectiveness of agricultural stewardship for improving water quality at the catchment scale: Experiences from an NVZ and ECSFDI watershed

Kay, Paul; Grayson, Richard; Phillips, Martin; Stanley, Karen; Dodsworth, Alan; Hanson, Ann Ellis; Walker, Andrew; Foulger, Miles; McDonnell, Iain; Taylor, Simon

doi:10.1016/j.jhydrol.2011.12.005

Cited by 39 publications

(53 citation statements)

References 30 publications

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“…This makes sense if we focus on the quality of drinking water, as some human health problems such as methemoglobinemia are associated with high nitrate concentrations [6,14]. Furthermore, N is more likely to leach with rainwater moving through the soil [5] what brings about lower nitrate retention by soil and hence, a higher nitrate concentration in freshwaters.…”

Section: Nitrate Directivementioning

confidence: 99%

“…The designation of NVZs (Nitrate Vulnerable Zones) depends on nitrate concentration exceeds the threshold value of 11.3 mg N l -1 in freshwaters [14]. In England 68 of the territory has been designated as NVZ [17].…”

Section: Nitrate Directivementioning

confidence: 99%

“…This framework brought about The England Catchment Sensitive Farming Delivery Initiative (ECSFDI) in order to meet the WFD objectives. This Iniciative tries to raise awareness and deliver advice among farmers for reducing nutrient water pollution [14]. In this regard, the ECSFDI is a project where is up to farmers to get involved, unlike farms in NVZ where they are required to apply the Code of Good Agricultural Practice [17].…”

Section: Water Framework Directive (Wfd)mentioning

confidence: 99%

“…Moreover, some recent studies undertaken to determine the effectiveness of NVZ and ECSFDI have indicated the lack of evidence of significant water quality improvements in the UK [14,22]. In fact, Worral [22] questioned the effectiveness of measures that mainly aim at reducing fertiliser inputs in farms included in NVZ, whereas other factors such as connectivity of nutrient sources and hydrological flow paths can be determinant for nutrient pollution at a catchment scale.…”

Section: Water Framework Directive (Wfd)mentioning

confidence: 99%

“…However, some studies have questioned the effectiveness of these policies, specifically the Nitrate Directive [14,22], as they do not consider the upstream-downstream linkages, particularly the nutrient spiralling concept. In this regard, River Ure rises very close to the study area and then, flows eastward through a NVZ.…”

Section: Landscape Connectivitymentioning

confidence: 99%

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The Potential of P Loss from Livestock Farms to Watercourses in Wensleydale; A Risk Mapping Approach

G¹

2015

Forest Res

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Hydrologic, chemical and physical factors controlling P export from 10 livestock farms located in Wensleydale were considered in order to estimate the risk of P loss to surface waters in a Non Nitrate Vulnerable Zone (non NVZ). Phosphorus source factors were obtained from a farm investigation questionnaire as well as from soil analysis results. Transport factors were examined using a GIS as a tool to implement a predictive model of delivery of P to watercourses. The classification of grassland into different risk categories was carried out using the Pennsylvanian P Index in a GIS. Finally, this risk assessment has yielded that non NVZ areas can pose a risk of breaching the Water Framework Directive (WFD) objectives. A wide range of mechanisms including voluntary schemes are needed in order to reach good ecological status of freshwaters by 2015 in the UK.

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Section: Nitrate Directivementioning

confidence: 99%

Section: Nitrate Directivementioning

confidence: 99%

Section: Water Framework Directive (Wfd)mentioning

confidence: 99%

Section: Water Framework Directive (Wfd)mentioning

confidence: 99%

Section: Landscape Connectivitymentioning

confidence: 99%

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The Potential of P Loss from Livestock Farms to Watercourses in Wensleydale; A Risk Mapping Approach

G¹

2015

Forest Res

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Quantifying Water Pollution Sources in a Small Tile‐drained Agricultural Watershed

Fučík

Hejduk

Peterková

2014

CLEAN Soil Air Water

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Research ArticleQuantifying Water Pollution Sources in a Small Tile-drained Agricultural Watershed This paper evaluates the quantity and quality dynamics of surface and drainage waters in a small, 7.1 km 2 agricultural watershed, located in the crystalline complex of the Czech Republic. Concentrations and monthly solute loads of amonium nitrogen (NH 4 -N), nitrate nitrogen (NO 3 -N), phosphate phosphorus (PO 4 -P) and total phosphorus (P tot ) from ten watershed's subcatchments with different soil, land use and tile drainage characteristics were compared for the period March-October from 2009 to 2011. The results and relevant processes were described using regular monitoring as well as event-based sampling approaches, methods of runoff separation and regression techniques. The average baseflow comprised 35-50%, whereas interflow and overland flow were 50-65% of the total runoff. The highest concentrations of NO 3 -N were detected in waters originating from cultivated and tiled subcatchments; those of NH 4 -N, PO 4 -P and P tot came from subcatchments containing settlements and water ponds. In the monitored sites within the watershed, non-point pollution sources produced on average 23% of NH 4 -N, approximately 45% of NO 3 -N, 24% of PO 4 -P and about 26% of P tot of total monthly solute loads. The differences in the share of monitored subcatchments in the total load from non-point pollution sources varied from month to month and were caused mainlybymiscellaneous hydrologicalconditionsand naturalaswellasman-alteredrunoff characteristics. The obtained results confirmed that used methods count for a useful approach for discerning water pollution sources and their dynamics in small, tile drained watersheds.

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Catchment similarity concepts for understanding dynamic biogeochemical behaviour of river basins

et al. 2013

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'Catchment similarity concepts for understanding dynamic biogeochemical behaviour of river basins.', Hydrological processes., 28 (3). pp. 1554-1560. 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-pro t 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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The effectiveness of agricultural stewardship for improving water quality at the catchment scale: Experiences from an NVZ and ECSFDI watershed

Cited by 39 publications

References 30 publications

The Potential of P Loss from Livestock Farms to Watercourses in Wensleydale; A Risk Mapping Approach

The Potential of P Loss from Livestock Farms to Watercourses in Wensleydale; A Risk Mapping Approach

Quantifying Water Pollution Sources in a Small Tile‐drained Agricultural Watershed

Catchment similarity concepts for understanding dynamic biogeochemical behaviour of river basins

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