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Titre :
|
Application of sample selection model in estimating response functions for nitrate percolation
|
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Auteurs :
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M. Chowdhury ;
R. Lacewell
|
|
Type de document :
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article/chapitre/communication
|
|
Année de publication :
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1996
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|
Format :
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p. 375-386
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Langues:
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= Anglais
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Catégories :
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EAU
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Mots-clés:
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NITRATE
;
PERCOLATION
;
PRATIQUE AGRICOLE
;
POLLUTION DE NAPPE
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Résumé :
|
This study has estimated nitrate percolation response functions for the Seymour aquifer area of Texas by using a sample selection model and also has demonstrated the need for using the appropriate estimation technique because of the sensitivity of estimated relationships for policy analysis. While the study provides some insight into the relationship between nitrate percolation and selected agricultural management practices, it does not attempt to investigate economic trade-offs and alternative policies by conducting a farm-level or regional-level analysis. Perhaps the most promising direction for future research on this issue would be developing economic models for policy analysis where the response functions estimated in this study could be incorporated.
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Source :
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Journal of environmental management, vol.48
|
