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Controlling Nitrate Leaching in Water Supply Catchments
Author(s) -
KNIGHT M. S.,
TUCKWELL S. B.
Publication year - 1988
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1988.tb01285.x
Subject(s) - nitrate , arable land , leaching (pedology) , environmental science , agriculture , drainage basin , water supply , environmental engineering , water resource management , population , water pollution , hydrology (agriculture) , environmental protection , environmental chemistry , geography , soil water , soil science , chemistry , engineering , cartography , demography , archaeology , organic chemistry , geotechnical engineering , sociology
ABSTRACT S prings from a catchment to the north east of Bath to provide up to 80 per cent of the water supply to a population of 96 000. A review in 1984 suggested that within a few years nitrate concentrations in these sources could exceed the limit for drinking water (11.3 mg N/1). Nitrate was being leached from agricultural land and when an opportunity arose to alter the largely arable farming on part of the catchment, guidelines were devised to reduce nitrate leaching. This paper describes the guidelines and the effects of their implementation.