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CYPRUS Case Study Presentation – Dhiarizos river

CYPRUS Case Study Presentation – Dhiarizos river. Presented by: Charalambos Panayiotou Environmental Scientist, MSc Manager Atlantis Consulting ltd. Case study area. GENERAL OVERVIEW.

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CYPRUS Case Study Presentation – Dhiarizos river

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  1. CYPRUS Case Study Presentation – Dhiarizos river • Presented by: • Charalambos Panayiotou • Environmental Scientist, MSc • Manager Atlantis Consulting ltd Case study area

  2. GENERAL OVERVIEW • The Diarizos river valley covers about 260 km2 in SW Cyprus and extends along approx. 33 km from headquarters to sea • Minimum elevation is 0 m and maximum elevation is 1800 m. • Bunding box [lat/long of upper left (lat: 458,978.47, long: 3,872,690.42) and lower right (lat: 488,606.67, long: 3,838,161.32) corner minimally The Dhiarizos River Basin consists of seven sub catchments

  3. Diarizos Valley _ Irrigation Diarizos Valley _ Drinking water Kourris _ Agricultural and Drinking Water Paphos Irrigation Project Paphos Municipality _ Drinking Water Instream Runoff Water Demand • Cultivated crops in watershed: DECARS • (1000 m2) • Citrus: 880 • Deciduous : 1460 • Olives: 250 • Vines: 130 • Fodder: 80 • Potatoes: 30 • Vegetables: 30 • TOTAL 2860 • 28 Communities • - 18 communities downstream of Arminou Dam and 10 communities upstream • Total Population: 3,550 inhabitats, mostly farmers

  4. LANDUSE WATER MANAGEMENT INFRASTRUCTURE • ARMINOY DAM • DIVERSION PIPE TO KOURRIS • WELLS • LOCAL IRRIGATION AND POTABLE WATER NETWORKS • WELLS AND DIVERSION CHANNELS TO PAPHOS

  5. GEOLOGY • IGNEOUS ROCKS 43% • (upstream of Arminou Dam ) • MAMONIA (MELANGE) 13% • CHALKS 19% • CHALKS AND MARLS 24% • ALLUVIUM 1% Fault Diarizos aquifer Fault

  6. MODEL TOPOLOGY • 4 upper valley subcatchments • Arminou dam • Diversion to Kourris • Drinking and Irrigation wells for local use • Local irrigation demand nodes • Local Drinking water demand nodes • Diversions to Paphos and wells feeding the diversions

  7. River Basin Topology SUB-2 SUB-1 The 4 Upper Catchment Start Nodes (SUB1-4) SUB-3 SUB-4 SUB-5 DRINK ARMINOU DAM Diversion to Kouris Dam KOURIS SUB-5 IRRIG FAULT 1 AVDIMOU-ALEKTORA-PARAMALI SUB-5 Diversion to villages WETLAND WELL SUB-6 DRINK Subcatchment 6 Wells for Drinking Water SUB-6 IRRIG Subcatchment 6 Wells for Irrigation SUB-6 PAFOS IRRIG WELL PISSOURI Diversion to Pissouri village SUB-7 DRINK This node arrangement represents the wells (Start Node) used for the water demands of the Pafos Irrigation Works SUB-7 SUB-7 IRRIG FAULT 2

  8. Case study Analysis

  9. Baseline Scenario Summary

  10. Defining water management targets • Issues as defined from the Stakeholder participation Process: • Water is very scarce, drought in most years. Quantity of water is more of a problem than quality. • Water export outside the watershed is a problem for local communities as they feel they have insufficient water to meet their needs. • Local Community stakeholders expressed the opinion that the price of water is too high while the WDD expressed the opinion that the price of water should be increased. • Surface and groundwater depletion due to unsustainable uses, illegal drilling or boreholes. • Arminou Dam is said by several stakeholders to be too small to meet the water needs

  11. Optimization scenarios • Technology options utilised during optimisation include: • Application of water conserving crops • Training • Small pumps • Desalination • Reservoir • Criteria and Constraints • Cost / benefit ratio • Reliability of supply

  12. In general several alternative options were identified which exhibited improved cost/benefit or reliability of supply. The construction of a small dam at Souskiou is found to have several benefits (reduced outflow to sea, improved reliability of supply and improved cost/benefit ratio) Switching to less water intensive crops does not necessarily lead to improved cost/benefit ratios Optimisation Results

  13. Issues defined by Stakeholders: Responsibility, accountability and competence of governing institutions are not clearly defined. Local communities feel they are not adequately represented at the decision making level. Institutional control and enforcement needs to be improved Information to public is limited. Few awareness campaigns. Decisions and rationale behind decisions is inaccessible to local communities General Conclusions

  14. thank you.

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