General
National Id
Cyprus_03
Site name
Oroklini lake, Larnaca
Summary
Oroklini lake is a waterbody located close to the south coast of Cyprus next to the city of Larnaca and within the boundaries of Oroklini village. The waterbody has been subject to modifications and degradation by implementing hydraulic measures in the mid 40’s, in order to desiccate the lake, due to health concerns. The purpose of NWRM implementation was to increase water retention and restore the wetland habitats in order to meet the needs of two important bird species, but also to increase biodiversity. The measures included among others, retention measures aiming at securing water availability in the upper basin of the lake and measures aiming at increasing the biodiversity of the ecosystem.
The in-depth description of the case study
NUTS Code
Κύπρος (Kýpros)
RBD code
CY001
Transboundary
0
Data provider
Ayis Iacovides, I.A.CO
Source(s)
NWRM(s) implemented in the case study
Longitude
33.650833
Latitude
34.967222
Site information
Climate zone
warm temperate dry
Soil type
Solonchaks
Mean rainfall
351,5
Mean rainfall unit
mm/year
Average temperature
19,6
Mean evaportranspiration
2259
Mean evaportranspiration unit
mm/year
Mean runoff
0,0135000003501773
Mean runoff unit
600 - 750 mm
Average runoff coefficient
0,458999991416931
Average imperviousness
45
Type
Case Study Info
Light or indepth?
In-depth
Average slope range
2-5%
Vegetation class
Reedbeds and halophytes
Monitoring maintenance
Monitoring impacts effects
1
Performance
Performance impact estimation method
Catchment outlet
Performance impact estimation information
A monthly water operation study of the Oroklini Lake, under scenarios of drought, average and wet conditions was carried out on the basis of the hydro-climatological conditions of the years 1968 to 2011. This was used to evaluate impact on fauna.
Design & implementations
Application scale
Field Scale
Installation date
1940-01
Age
74
Performance timescale
1 - 4 years
Area (ha)
295
Area subject to Land use change or Management/Practice change (ha)
91
Size
91
Size unit
m2
Max water retention capacity
23428
Max water retention capacity unit
m3/month
Runoff treatment capacity
8
Runoff treatment capacity unit
mm/month
Basis of design
100-year storm
Constraints
Constraints are: urbanization of the area surrounding the lake and demand for new road crossings. Similarly, the urbanization and lack of sewage network causes deterioration of quality of surface water, and future changes of its quantity.
Favourable preconditions
The lowland features of the area and its location favorable to certain bird species and the presence of surface runoff as well as the state ownership of the area are excellent preconditions.
Inflow volume
0,5
Inflow volume unit
mio m3/day
Outflow volume
0,0359999984502792
Outflow volume unit
mio m3/month
Public consultation
1
Contractural arrangements
1
Design contractual arrangement
| Arrangement type | Responsibility | Role | Comments | Name | |
|---|---|---|---|---|---|
|
project LIFE10 NAT/CY/716
|
Design consultation activity
| Activity stage | Key issues | Name | Comments |
|---|
Design land use change
| Land use change type | |
|---|---|
|
Inland marshes
|
Design authority
| Authority type | Role | Responsibility | Name | Comments | |
|---|---|---|---|---|---|
Lessons, risks, implications...
Key lessons
Proper water management with small scale measures can restore wetlands within urban areas for furthering nature conservation objectives such as wet grassland conditions for breeding rare birds. This at the same time may offer minor flood protection.
Financing mechanism
0
Financing difficulties
0
Success factor(s)
| Success factor type | Success factor role | Comments | |
|---|---|---|---|
|
Attitude of decision makers
|
main factor
|
Insistence and pressure by Department of Environment , BirdLife Cyprus and Game Fund |
|
|
Financing possibilities
|
main factor
|
Financial support by LIFE under the project LIFE10 NAT/CY/716 |
Financing
| Financing type | Comments | |
|---|---|---|
|
EU-funds: LIFE+
|
Driver
| Driver type | Driver role | Comments | |
|---|---|---|---|
|
Organisation committed to it
|
main driver
|
Dept. of Environment, BirdLife Cyprus, Game Fund, Local Village Council
|
Financing share
| Financing share type | Share | Comments | |
|---|---|---|---|
Policy, general governance and design targets
Policy description
The NWRM, a water retaining structure with sluice and other water management works, channels for ideal nesting habitat, new low bunds with overflow etc., all tending to prevent the drying out of the lake and fit the needs of the target species.
Part of wider plan
0
Policy target
| Target purpose | |
|---|---|
|
Improved Biodiversity
|
|
|
Oher Societal Benefits
|
|
|
Peak-flow reduction
|
|
|
Oher Societal Benefits
|
Policy pressure
| Pressure directive | Relevant pressure |
|---|
Policy area
| Policy area type | Policy area focus | Name | Comments |
|---|
Policy impact
| Impact directive | Relevant impact |
|---|
Policy wider plan
| Wider plan type | Wider plan focus | Name | Comments |
|---|
Policy requirement directive
| Requirement directive | Specification |
|---|
Socio-economic
Direct benefits information
Continuation of the wetland effectiveness within the encroaching urban development. Existence of wetland and nesting ground of two species of birds listed in Annex I of EU Directive. Availability of wet conditions for the period required
Ancillary benefits information
Leisure area within an urban environment. Tourist attraction. Educational area for young people.
Costs investment information
The measure exists only partly. On going studies aim to design in full the NWRM and management of the wetland. Full capital cost is still not known
Costs operational information
The costs will be known once the full management plan including necessary monitoring is established. These might involve analyses of water, fauna observations, assistant†™s visit to check water level recorder and other installations.
Costs maintenance information
Expenses will be identified after completion of NWRM design. Additional costs will involve protection of quality of water flowing to the wetland due to urbanization and encroachment of urban development.
Costs total information
The measure is under study. The full investment will be evaluated after the completion of all relevant studies
Economic costs additional
7500
Ecosystem improved biodiversity
1
Information on Ecosystem improved biodiversity
The conditions in the area where two very important birds included in Annex I of EU Directive on Birds (Vanellus spinosus and Himantopus himantopus) nest, are greatly improved. The lake hosts some 186 kinds of which 69 are included in the Directive.
Ecosystem provisioning services
1
Information on Ecosystem provisioning services
The NWRM helps the development of mild tourism activity and leisure activities in agreement with the maintenance of the environmental values of the wetland and the protection of the bird species using it.
Ecosystem impact climate regulation
No specific impact
Information on Ecosystem impact climate regulation
Very minor impact might be expected on climate regulation.
Biophysical impacts
Retained water
7,09999990463257
Retained water unit
mio m3/month
Information on retained water
In an average year the lake created by the dam is dry in June, July, August and September. The lake is full for the rest of the months except of May (nearly half full) and October (nearly full). Spills maintain wetlands downstream the dam
Increased water storage
0,017000000923872
Runoff reduction
6600
Increased water storage unit
mio m3/month
Information on increased water storage
The water stored in the lake created by the retention dam in an average year is 0,017 million m3 per month. The wetland collected certain, reduced, quantities of water for some periods of the year which soon evaporated
Runoff reduction unit
m3/month
Information on runoff reduction
The average monthly water reduction by the NWRM is estimated to be of the order of 6600 m3. The control could be higher if the controlled releases to the downstream wetlands are considered.
Ecosystem erosion control
1
Information on Ecosystem erosion control
Although of minor impact. Sediments are deposited upstream the dam.
Water quality overall improvements
Positive impact-WQ improvement
Information on Water quality overall improvements
The presence of stored water reduces the salinity of the water
Soil quality overall soil improvements
Neutral impact-no change in SQ status
Information on Soil quality overall soil improvements
No impact on soil quality is observed or expected.
