General
National Id
Hungary_02
Site name
Nagyszéksós Lake, Csongrád county
Summary
The Nagyszéksós-tó project aimed safeguarding natural and recreational functions of the Nagyszéksós lake protected area through the improved retention of water from excess water periods 1.2 million m3 and the provision of surplus water from the nearby village's water treatment plan giving extra treatment through a newly developed wetland area. The other goals of the project are the improved infiltration to the groundwater and restored drainage capacity of the water system to prevent long lasting water logging periods on agricultural fields.The nearby village, Mórahalom also benefited from the development through improved recreation conditions and cultural, educational possibilities in the area.
NUTS Code
Dél-Alföld
RBD code
HU1000
Transboundary
0
Data provider
Gábor Ungvári
Source(s)
NWRM(s) implemented in the case study
Site information
Climate zone
warm temperate dry
Mean rainfall
525
Mean rainfall unit
mm/year
Average temperature
11
Mean runoff
2,34999990463257
Mean runoff unit
600 - 750 mm
Average runoff coefficient
1,13619995117188
Type
Case Study Info
Light or indepth?
Light
Vegetation class
It is a wetland area surrounded by crop production agricultural lands.
Performance
Performance impact estimation method
Catchment outlet
Design & implementations
Application scale
Field Scale
Lifespan
30
Age
4
Performance timescale
Immediate
Area subject to Land use change or Management/Practice change (ha)
9
Design capacity description
1.2 million cubic m (m3)
Constraints
The size of the area is constrained, bigger volume retention would threaten agricultural lands
Favourable preconditions
The main drainage channel of the district's drainage network passes by the lake. (The lake itself the area that reamined an drained)
Design contractual arrangement
| Arrangement type | Responsibility | Role | Comments | Name | |
|---|---|---|---|---|---|
|
The parties will prepare a plan to specify the operation details after the experiences of the first years in operation.
|
Design consultation activity
| Activity stage | Key issues | Name | Comments |
|---|
Design land use change
| Land use change type | |
|---|---|
|
Moors and heathland
|
Design authority
| Authority type | Role | Responsibility | Name | Comments | |
|---|---|---|---|---|---|
Lessons, risks, implications...
Key lessons
The project required the compromise of the water directorate and the national park how they manage their disparate interests of water levels in the lake facing the unpredictability of precipitation events. The further expansion of such a scheme in the area would have public, environmental and private gains as well, but the parties at the moment see no means how to harmonize conflicting interests if not only public, but privately owned lands would be involved as well.
Success factor(s)
| Success factor type | Success factor role | Comments | |
|---|---|---|---|
|
Existing institutional framework
|
main factor
|
The area is state property |
|
|
Successful coordination between authorities
|
main factor
|
||
|
Financing possibilities
|
main factor
|
||
|
Attitude of relevant stakeholders
|
secondary factor
|
The local government of the nearby village was supportive. The village has direct benefit from the project. There is an improvement in recreational facilities |
Financing
| Financing type | Comments | |
|---|---|---|
|
EU-funds: Cohesion and regional development funds
|
DAOP 5.2.1/D - Komplex vízvisszatartási akcióprogram a Nagyszéksós-tó vízrendszerében
|
Driver
| Driver type | Driver role | Comments | |
|---|---|---|---|
|
Balancing different objectives
|
main driver
|
The obligation of the water authority (to provide safety against flood or water logging threats are in contradiction with the environmental management objectives of the national park. Because the lake serve as a buffer for storage of the surplus water. The applied solution is a way forward from this situation, but without the financial sources of the operative program no sources would be attained.
|
|
|
Availability of subsidies
|
secondary driver
|
Financing share
| Financing share type | Share | Comments |
|---|
Policy, general governance and design targets
Policy description
It is a lake-wetland with big shallow areas, the water level drops left these areas dry out frequently. The NWRM will mitigate the changes of water level. WFD pressure 4.1.2; 4.3.1 2.2??
Part of wider plan
0
Policy target
| Target purpose | |
|---|---|
|
Increase Water Storage
|
|
|
Improved Biodiversity
|
|
|
Peak-flow reduction
|
|
|
Groundwater Recharge
|
|
|
Pollutants Removal
|
|
|
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
1666,66662597656
Direct benefits information
There are avoided costs. According to the predictions the upgraded situation will decrease the total maintenace costs that emerged previously at the two organisations (water directorate, national park)
Ancillary benefits information
There is no economic assessment of the miscallenous benefits. These could come from recreational activities, nutrient load mitigation and habitat services.
Costs investment
747095,25
Costs investment information
New water supply chanel, creation of wetland, reconstruction work inside the lake, reconstruction of drainage channels.
Inflation adjusted price from HUF 2009
Inflation adjusted price from HUF 2009
Costs operation maintenance
1666,66662597656
Costs operation maintenance
This is the maintenance cost of the channels. Additonal cost will emerge in case of severe water shortage (reference to the water depth), the pumping of treated water to the constructed wetland to start supply the lake will start. It will have a cc 15€/day cost.
Ecosystem improved biodiversity
1
Information on Ecosystem improved biodiversity
The eutrophication process that threatened the lake was changed, the water lily (Nympheaetum albae) appeared again in the lake.
Ecosystem provisioning services
1
Information on Ecosystem provisioning services
The biomass of the lake now serves as feedstock for the buffalos. A recently finished, paralel ecology pilot-project applied water buffalos (Bubalus bubalus) to repel invasive species from the area. The first results of the program are positive.
Ecosystem impact climate regulation
No information available
Biophysical impacts
Water quality overall improvements
Positive impact-WQ improvement
Information on Water quality overall improvements
There is no quantitative inforamtion to measure the changes.
Soil quality overall soil improvements
N/A info
