Title:	Hydro-economic model for the assessment of water resources allocation and availability impacts on agricultural income.
Authors:	TORRES, M. de O. RODRIGUES, L. N. MOREIRA, J. M. M. A. P.
Affiliation:	MARCELO DE OLIVEIRA TORRES, UNIVERSIDADE DE BRASÍLIA LINEU NEIVA RODRIGUES, CPAC JOSE MAURO MAGALHAES AVILA PAZ MOREIRA, CNPF.
Date Issued:	2014
Citation:	In: INOVAGRI INTERNATIONAL MEETING, 2.; SIMPÓSIO BRASILEIRO DE SALINIDADE, 2.; REUNIÃO BRASILEIRA SOBRE ENGENHARIA DA IRRIGAÇÃO, 2., Fortaleza, 2014. Anais... Piracicaba: INOVAGRI: INCT-EI: INCTSA, 2014. p. 299-308.
Description:	ABSTRACT: The Buriti Vermelho experimental Basin (BHBV) is characterized by agricultural activities, seasonal water flow uncertainty and heterogeneous water allocation among rural farmers. In this context, this paper follows an interdisciplinary modeling approach that involves economics, hydrology and agronomy. The model developed is then used to evaluate the short-run impacts on agricultural income from changes on precipitation and irrigation water supply. The economic regional model follows a Positive Mathematical Programming approach which allows for the calibration of crop and farmer specific production functions. The hydrological model follows a water balance approach and yields water availability estimates on a proper time and spatial resolution. The two models are coupled together and calibrated with primary data collected in situ. Alternative temperature and precipitation regimes are simulated. Considering that the hydrologic characteristics of the region which, in normal years, guarantees a much higher supply of water for irrigation in the reservoirs relatively to demand and the fact that irrigated crops have a much heavier weight on the net revenue of the region than rainfed crops, a 5% decrease in water availability would be accompanied by a decrease of only 1.2% in the regional net revenue. This percentage, however, would increase to 11% and 32% when water availability reduces to 50 and 90% respectively.
Thesagro:	Recurso hidrico Irrigação Desenvolvimento socio-econômico Bacia Hidrográfica
NAL Thesaurus:	Water resources Irrigation Socioeconomic development
Keywords:	Buriti Vermelho
Type of Material:	Artigo em anais e proceedings
Access:	openAccess
Appears in Collections:	Artigo em anais de congresso (CPAC)