Data/hora: 11/06/2024 05:27:35

Provedor de dados: 	31	
País: 	United States	
Título: 	Koppelung agrarökonomischer und hydrologischer Modelle

Coupling of Agricultural Economic and Hydrological Models	
Autores: 	Gomann,   Horst; Kreins,   Peter; Kunkel,   Ralf; Wendland,   Frank.	
Data: 	2011-01-01	
Ano: 	2003	
Palavras-chave: 	Model-based policy consulting; Interdisciplinary model networks; Agricultural sector model; Diffuse agricultural nitrogen immissions; Agricultural and Food Policy; Environmental Economics and Policy.	
Resumo: 	The objective of the paper is to show the potential of interdisciplinary model networks consisting of agricultural economic and natural science models performing integrated impact assessments of agri-environmental policies. The potentials are exemplified using a coupling of the agricultural sector model RAUMIS with the hydrological models GROWA98 and WEKU in the scope of diffuse agricultural nitrogen immission into waterbodies. A brief classification of applied indicators is given. A key element for policy impact analyses are the relationships between the environmental indicator categories Driving Force, State and Response. The major relationships within this environmental scope as well as the modeling are explained. The presented model network represents a first area wide, regionally differentiated, consistent link-up between the Driving Force indicator “nitrogen balance surplus”, the State indicator “nitrogen(nitrate)concentration” and the response indicators. The results show that due to the local characteristics quite different shares of the agricultural nitrogen surplus finally enters the ground and surface waters. Hence, assessing the trade-offs of agri-environmental water protection measures requires an inclusion of natural local characteristics. The integrated consideration of the complex relationships and a comprehensive implementation of local characteristics allows to develop more efficient water pollution control measures.	
Tipo: 	Journal Article	
Idioma: 	Alemão	
Identificador: 	ISSN 0002-1121

http://purl.umn.edu/98360	
Relação: 	German Journal of Agricultural Economics&gt; Volume 52, Issue 4, 2003	
Formato: 	9