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Managing agriculture and water quality

four essays on the control of large-scale nitrogen pollution

Brady, Mark (2003). Managing agriculture and water quality. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae. Agraria, 1401-6249 ; 369
ISBN 91-576-6199-5
[Doctoral thesis]

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Abstract

Water pollution caused by nutrients and chemicals that are leached from arable soils is a pervasive problem around the globe. The nonpoint-source nature of this pollu-tion makes it particularly complex to control from an environmental policy perspec-tive. This thesis focuses on the economics of managing arable-nitrogen flows, via surface waters to the coastal zone, from a large and spatially diverse catchment area. It is based on four self contained articles (I–IV). Article I considers the implications of time lags in ecosystem recovery processes for the dynamic cost-effectiveness of arable-nitrogen control. Article II evaluates the relative cost-efficiency of current Swedish nitrogen policy and the implications of agricultural policy for the least-cost solution. Article III analyzes the implications of covariation between arable emis-sions and retention/transport for stochastic coastal pollution abatement. Article IV explores the implications of imperfect substitutability between manure and chem-ical fertilizer in crop and pollution production for efficient environmental policy design. In each of articles I to III, a mathematical programming model is developed for the empirical analyses which are conducted in a cost-effectiveness framework. In these models changes in agricultural production practices at the watershed level are linked to indexes of marine water quality. In article I this is done explicitly, whereas in articles II and III net coastal nitrogen load is used as a proxy for environ-mental quality. The latter models also consider spatial heterogeneity in the fate and transport of nitrogen, and production costs. Article IV is purely a theoretical analysis. The principle results were; I) that the choice of abatement target (flow, stock or quality) had radical implications for the choice of abatement path, II) that least-cost abatement measures changed with the treatment of agricultural policy (i.e., whether treated as a social opportunity cost or not), III) under certain conditions, considera-tion of both emissions and retention risk caused a sweeping change in the allocation of abatement between regions/sub-catchments in the watershed, and IV) some of the standard results from the literature were shown not to hold (in general) when the perfect-substitutability assumption was dropped.

Authors/Creators:Brady, Mark
Title:Managing agriculture and water quality
Subtitle:four essays on the control of large-scale nitrogen pollution
Year of publishing :April 2003
Volume:369
Number of Pages:31
Papers/manuscripts:
NumberReferences
ALLI. Hart, R. & Brady, M. Nitrogen in the Baltic Sea—Policy Im-plications of Stock Effects. Journal of Environmental Management (2002) 66, 91–103. II. Brady, M. The Relative Cost-Efficiency of Arable Nitrogen Management in Sweden. (Manuscript) III. Brady, M. Stochastic Coastal Pollution Management in the Presence of Nitrogen Transport Risk. (Manuscript) IV. Brady, M. Substitutability of Stable Manure and Chemical Fer-tilizer in Crop and Pollution Production. (Manuscript)
Place of Publication:Uppsala
ISBN for printed version:91-576-6199-5
ISSN:1401-6249
Language:English
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:T Pollution > T01 Pollution
P Natural resources > P10 Water resources and management
Subjects:Not in use, please see Agris categories
Agrovoc terms:nonpoint pollution, eutrophication, nitrogen, fertilizer application, leaching, environmental impact assessment, environmental policies, economic policies, cap, baltic sea
Keywords:water pollution, eutrophication, nitrogen, nonpoint-source pollution, environmental and agricultural policy, CAP, positive mathematical programming, environmental risk, dynamic and stochastic cost-effectiveness, fertilizer, manure, Baltic Sea
URN:NBN:urn:nbn:se:slu:epsilon-150
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-150
ID Code:217
Department:(NL, NJ) > Dept. of Economics
Deposited By: Staff Epsilon
Deposited On:04 Apr 2003 00:00
Metadata Last Modified:02 Dec 2014 10:02

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