Charalambos Panayiotou

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CYPRUS Case Study Presentation Dhiarizos river

• Presented by
• Charalambos Panayiotou
• Environmental Scientist, MSc
• Manager Atlantis Consulting ltd

Case study area
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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
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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

• Diarizos Valley _ Irrigation
• Diarizos Valley _ Drinking water
• Kourris _ Agricultural and Drinking Water
• Paphos Irrigation Project
• Paphos
  Municipality _ Drinking Water
• Instream Runoff

28 Communities - 18
communities downstream of Arminou Dam and 10
communities upstream Total Population
3,550 inhabitats,
mostly farmers
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LANDUSE
WATER MANAGEMENT INFRASTRUCTURE

• ARMINOY DAM
• DIVERSION PIPE TO KOURRIS
• WELLS
• LOCAL IRRIGATION AND POTABLE WATER NETWORKS
• WELLS AND DIVERSION CHANNELS TO PAPHOS

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

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River Basin Topology
SUB-2
The 4 Upper Catchment Start Nodes (SUB1-4)
SUB-1
SUB-3
SUB-4
ARMINOU DAM
SUB-5 DRINK
Diversion to Kouris Dam
KOURIS
SUB-5 IRRIG
FAULT 1
AVDIMOU-ALEKTORA-PARAMALI
SUB-5
Diversion to villages
SUB-6 DRINK
WETLAND WELL
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
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• Case study Analysis

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Baseline Scenario Summary
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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

•  

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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

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Optimisation Results

• 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

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General Conclusions

• 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

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• thank you.