Economic and environmental impacts of water quality protection policies. 2. Application to the Central High Plains

A three-stage modeling framework is applied to evaluate the potential economic and environmental impacts of agricultural groundwater protection policies in the Central High Plains Region. Three alternative policies (limitations on total nitrogen applications, limitations on unit-area nitrogen applic...

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Bibliographic Details
Published in:Water resources research 1993-09, Vol.29 (9), p.3081-3091
Main Authors: Bernardo, D.J, Mapp, H.P, Sabbagh, G.J, Geleta, S, Watkins, K.B, Elliott, R.L, Stone, J.F
Format: Article
Language:English
Subjects:
AGUA
AGUAS SUBTERRANEAS
CALIDAD DEL AGUA
COLORADO
COMPORTAMIENTO ECONOMICO
COMPORTEMENT ECONOMIQUE
EAU
EAU SOUTERRAINE
Freshwater
IMPACT SUR L'ENVIRONNEMENT
IMPACTO AMBIENTAL
KANSAS
METHODE D'OPTIMISATION
METODOS DE OPTIMIZACION
MODELE
MODELE DE SIMULATION
MODELE MATHEMATIQUE
MODELOS
MODELOS DE SIMULACION
MODELOS MATEMATICOS
NOUVEAU MEXIQUE
NUEVO MEXICO
OKLAHOMA
POLITICA AMBIENTAL
POLITIQUE DE L'ENVIRONNEMENT
POLLUTION DE L'EAU
POLUCION DEL AGUA
PRODUCCION
PRODUCTION
PRODUCTOS QUIMICOS AGRICOLAS
PRODUIT AGROCHIMIQUE
QUALITE DE L'EAU
TEXAS
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Summary:A three-stage modeling framework is applied to evaluate the potential economic and environmental impacts of agricultural groundwater protection policies in the Central High Plains Region. Three alternative policies (limitations on total nitrogen applications, limitations on unit-area nitrogen applications, and restrictions on the use of selected herbicides) are compared to a baseline scenario that reflects the absence of any form of groundwater quality protection measures. In general, nitrogen restrictions are more effective in reducing nitrate loadings in percolation water if implemented on a unit-area basis rather than as a total (farm level) restriction. In contrast, the total restriction is more effective in controlling runoff losses of nitrogen. Both nitrogen restrictions have significant impacts on crop production levels and regional agricultural income, while the economic consequences of the pesticide restriction are much less pronounced. The proposed regional modeling framework provides critical information necessary to assess the economic and environmental tradeoffs of policy alternatives aimed at controlling agricultural nonpoint source pollution
ISSN:0043-1397
1944-7973
DOI:10.1029/93WR00859