Development of a water-use strategy for horticulture in England and Wales – a case study

Knox, Jerry W.; Díaz, J.A. Rodríguez; Weatherhead, E.K.; Kay, Melvyn

doi:10.1080/14620316.2010.11512636

Cited by 36 publications

(25 citation statements)

References 3 publications

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“…Irrigation is thus likely to become more important, both on existing irrigated crops and on other historically rainfed crops such as wheat, in which growth is likely to be affected by increasing levels of water stress and the greater inter-annual variability in climate (Richter and Semeneov, 2005;Knox et al, 2010). Fifty-five per cent of potato and vegetable production is currently in catchments defined by the Environment Agency as being 'over-abstracted' (Hess et al, 2011).…”

Section: Crop Yield and Quality Impactsmentioning

confidence: 99%

Identifying Future Risks to UK Agricultural Crop Production

Knox

Morris²,

Hess³

2010

Outlook Agric

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Internationally, agriculture is widely regarded as one of the sectors at most risk from a changing climate. This is due to the impact of increased temperatures, reduced rainfall and increased frequency of extreme events, not only in the tropics but also in temperate environments. In the UK, growers also face a range of 'non-climate' risks, which, it is often argued, present a potentially greater and more immediate threat to sustainable food production than climate change. This paper highlights the climate and non-climate impacts on crop production, the adaptation options and the institutional and regulatory barriers to their uptake by farmers. It concludes that there are likely to be both positive impacts (for example, yield gains) and negative impacts (for example, increased water stress). Either way, there will be a need for new investments in adaptive management and technology, including new collaborations between the public and private sectors, to enable UK agriculture to respond to the potential effects of climate change.

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Section: Crop Yield and Quality Impactsmentioning

confidence: 99%

Identifying Future Risks to UK Agricultural Crop Production

Knox

Morris²,

Hess³

2010

Outlook Agric

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“…These correspond to known areas of intense horticultural production. In 2008, it was reported that there were 1173 horticultural holdings in the EA Anglian Region and 40% of these were engaged in growing field‐scale vegetables, including RTE crops (Knox et al 2010). The analysis shows that there are nearly 3300 irrigation abstraction licences, with a total annual licensed volume of 123 × 10 6 m 3 (Table 2).…”

Section: Resultsmentioning

confidence: 99%

A geospatial approach to assessing microbiological water quality risks associated with irrigation abstraction

Knox

Tyrrel

Daccache

2011

Water & Environment J

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All crops that are eaten raw can present a microbiological risk to consumers. Disease outbreaks in the United Kingdom and United States have illustrated that ready-to-eat crops can be a vehicle for the transmission of gastrointestinal disease. Irrigation water has been implicated as a possible source of microbiological contaminants. Over two-thirds of irrigation water applied to UK salad crops is abstracted from rivers and streams. Many of these are subject to a continuous input of faecal contamination from sewage treatment works as well as intermittent inputs from livestock and sewer overflows. In this paper, we show how geospatial techniques can help to assess the relationships between treated effluent discharges and abstractions and thus provide a new insight into local-scale assessments of irrigation water quality. The extent to which the approach can inform risk assessments and decision-making at the farm scale is demonstrated using a case-study catchment in eastern England.A geospatial approach to assessing microbiological water quality risks J. W. Knox et al.

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“…Many investigators have studied the influence of irrigation by different water sources on soil properties and irrigation efficiencies (Karajeh et al, 2013). In arid and semi-arid regions, low quality of irrigation water with excess salt produced soil salinity, alkalinity and changes its physical properties (Elwan and Kandil, 1992) as well as the osmotic relationship between plant root and soil moisture, which negatively affect plant growth and yield (Malash et al, 2005 andNahid et al, 2008), so quality assurance is the major driver for irrigation to provide demand by the major retailers (Knox et al, 2010).…”

Section: Introductionmentioning

confidence: 99%