Irrigation Needs

In order to have a complete view of the current agricultural production in the Nestos delta region, agricultural survey data aggregated by municipality were obtained from the National Statistic Service of Greece for the years 1999-2003. The collected data were stored in the ArcGIS project database and contain the aggregated field areas by town district for the ten main products of the region: soft wheat, durum (hard) wheat, sugar beet, cotton, rice, barley, maize, asparagus, alfalfa and tobacco. These production statistics show a distinct difference in crops and farmer revenues between the irrigated areas on the right (west) bank of the Nestos and the non-irrigated areas on the left (east) bank around the town of Xanthi (Fig. 10.6).

4WAE- EPTA NEETOY

4WAE- EPTA NEETOY

Mesta River

Fig. 10.5 Dams and hydroelectric power plants in the Greek part of the Mesta/Nestos river basin

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Fig. 10.5 Dams and hydroelectric power plants in the Greek part of the Mesta/Nestos river basin

Fig. 10.6 Irrigation networks at the Nestos river delta

Evaluation of the income increase between irrigated and dry agriculture has been conducted using the agro-economic model produced by the Common Agricultural Policy for Regional Impact, also known as CAPRI model [13]. The model was used in order to determine the average income from the two types of farms for three EU Common Agriculture Policy (CAP) scenarios: the reference conditions of 2001, the Agenda 2000 and the Mid-Term Review (MTR) 2003 measures.

The benefits of the Temenos project were evaluated using an expected average income increase (idem, marginal benefit) of 950 Euros/ha (in Euro value of year 2001) if farms are irrigated. This figure is used in order to evaluate the "Lost Crop" term for periods when the Temenos irrigation system is unable to satisfy the irrigation needs of the farmers in the Xanthi area.

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