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1998 | 458 |
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Using remote sensing techniques in monitoring of irrigation with groundwater abstraction

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The great expansion of irrigated lands using groundwater has caused in many cases the overdraft of aquifer reserves largely beyond their recharge capa­city. The development of management tools which can harmonise resource exploitation with reserve sustainability must therefore be an objective to be satis­fied within applied research projects on this issue. An experience worth to be mentioned is being accomplished in the aquifer 08.29 in Mancha Oriental (Spain). A Project (GESMO) has been initiated to create an integrated and integral management of the aquifer system as well as to prepare appropriate te­chniques for its adequate exploitation and water use. To be able to attain the goals of the project, several specific objectives are defined: among them we will emphasise in this paper those regarding the development of technologies adap­ted to the study area, using remote sensing techniques for the analysis of a reduced number of images which allow the permanent monitoring of the irrigated areas water abstraction. This paper aims at describing the results obtained in the monitoring of water abstraction from the aquifer for irrigation in a pilot area during the year 1997. The development of the Project include different mile­stones: irrigation crops classification and mapping; evaluation of crops irrigation water requirements; evaluation of water abstraction in a pilot area; validation of the results obtained; extrapolation of the results to the whole aquifer.
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  • Instituto de Desarrollo Regional, Campus Universitario, 02071 Albacete, Spain
  • Instituto de Desarrollo Regional, Universidad de Castilla-La Mancha, Albacete, Spain
  • Instituto de Desarrollo Regional, Universidad de Castilla-La Mancha, Albacete, Spain
  • Instituto de Desarrollo Regional, Universidad de Castilla-La Mancha, Albacete, Spain
  • Instituto de Desarrollo Regional, Universidad de Castilla-La Mancha, Albacete, Spain
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  • [5] IGME. 1980. El Sistema Hidrogeológico de Albacete (Mancha Orien­tal). Institute Geológico у Minero de Espańa Madrid.
  • [6] ITCG. 1995. Evolucion Piezometrica de la Unidad Hidrogeológica 08.29 Mancha Oriental en el periodo 1975-1995. Instituto Tecnológico у Minero de Espańa (Unpubl.). Madrid.
  • [7] Martín De Santa Olalla F., De Juan A. (Editors). 1993. Agrono­mía del Riego. Mundi-Prensa-UCLM. Madrid: 732 pp.
  • [8] Martín De Santa Olalla F, Gil A., Bromley J., Batchelor C., Brasa A., Legorburo A., 1997. Integrated catchment management in sustainable agriculture. In: Proceedings of „International Con­ference on Mediterranean Desertification". (Crete-Hellas, Octo­ber 1996). European Commission (in press).
  • [9] Martín De Santa Olalla F, Brasa Ramos A., Fabeiro Cortes C., FernAndez Gonzalez D., López Córcoles H. 1998. Improve­ment of iirigation management towards the sustainable use of groun­dwater in Castilla-La Mancha. Agri. Water Manage. Special Issue (in press).
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