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Figure 5: Average annual water volume applied by hectare in several regions of Spain (INE, 2003).

This situation is not only due to the fact that a high percentage of the irrigation systems used in CLM are modern and highly efficient, compared with other regions of Spain (Fig. 6), but also that a great part of the irrigable lands of CLM are infra-equipped and are supplied by aquifers declared overexploited (like Mancha Occidental, to which the water exploitation plan assigns approximately 1,500 m3 ha-1 year-1), or in risk of overexploitation (like Mancha Oriental, with a water exploitation plan that assigns around 4,500 m3 ha-1 year-1).

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