Database release:
SDF
NATURA 2000 - STANDARD DATA FORM

For Special Protection Areas (SPA),
Proposed Sites for Community Importance (pSCI),
Sites of Community Importance (SCI) and
for Special Areas of Conservation (SAC)

TABLE OF CONTENTS

1. SITE IDENTIFICATION

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1.1 Type

B

1.2 Site code

HUDI20054

1.3 Site name

Velencei-tó

1.4 First Compilation date

2004-02

1.5 Update date

2012-10

1.6 Respondent:

Name/Organisation:Duna-Ipoly National Park Directorate
Address:               
Email:

1.7 Site indication and designation / classification dates

Date site proposed as SCI:2004-05
Date site confirmed as SCI: No data
Date site designated as SAC:2010-02
National legal reference of SAC designation:275/2004. (X. 8.) Kormnyrendelet

2. SITE LOCATION

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2.1 Site-centre location [decimal degrees]:

Longitude:18.563056
Latitude:47.197778

2.2 Area [ha]

1082.1300

2.3 Marine area [%]

0.0000

2.4 Sitelength [km]:

0.00

2.5 Administrative region code and name

NUTS level 2 code Region Name
HU21Közép-Dunántúl

2.6 Biogeographical Region(s)

Pannonian (0.00 %) Pannonian (0.00 %) Pannonian (100.00 %)
Pannonian (100.00 %) Pannonian (100.00 %) Pannonian (100.00 %)
Pannonian (0.00 %) Pannonian (100.00 %) Pannonian (0.00 %)
Pannonian (0.00 %) Pannonian (0.00 %) Pannonian (0.00 %)

3. ECOLOGICAL INFORMATION

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3.1 Habitat types present on the site and assessment for them

Annex I Habitat types Site assessment
Code PF NP Cover [ha] Cave [number] Data quality A|B|C|D A|B|C
      RepresentativityRelative SurfaceConservationGlobal
1530  info      93.65  0.00 
3160  info      0.98  0.00 
6440  info      10.053  0.00 
7140  info      32.46  0.00 
7210  info      2.46  0.00 
91E0  info      28.91  0.00 
  • PF: for the habitat types that can have a non-priority as well as a priority form (6210, 7130, 9430) enter "X" in the column PF to indicate the priority form.
  • NP: in case that a habitat type no longer exists in the site enter: x (optional)
  • Cover: decimal values can be entered
  • Caves: for habitat types 8310, 8330 (caves) enter the number of caves if estimated surface is not available.
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation)

3.2 Species referred to in Article 4 of Directive 2009/147/EC and listed in Annex II of Directive 92/43/EEC and site evaluation for them

Species Population in the site Site assessment
G Code Scientific Name S NP T Size Unit Cat. D.qual. A|B|C|D A|B|C
      MinMax  Pop.Con.Iso.Glo.
A1188Bombina bombina    1001  10000   
P4081Cirsium brachycephalum    1500  2000   
R1220Emys orbicularis    51  100   
I1042Leucorrhinia pectoralis         
P1903Liparis loeselii    1500  2500   
M1355Lutra lutra               
I1060Lycaena dispar            DD       
F1145Misgurnus fossilis         
A1993Triturus dobrogicus          DD       
  • Group: A = Amphibians, B = Birds, F = Fish, I = Invertebrates, M = Mammals, P = Plants, R = Reptiles
  • S: in case that the data on species are sensitive and therefore have to be blocked for any public access enter: yes
  • NP: in case that a species is no longer present in the site enter: x (optional)
  • Type: p = permanent, r = reproducing, c = concentration, w = wintering (for plant and non-migratory species use permanent)
  • Unit: i = individuals, p = pairs or other units according to the Standard list of population units and codes in accordance with Article 12 and 17 reporting (see reference portal)
  • Abundance categories (Cat.): C = common, R = rare, V = very rare, P = present - to fill if data are deficient (DD) or in addition to population size information
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation); VP = 'Very poor' (use this category only, if not even a rough estimation of the population size can be made, in this case the fields for population size can remain empty, but the field "Abundance categories" has to be filled in)

3.3 Other important species of flora and fauna (optional)

Species

Population in the site

Motivation

Group CODE Scientific Name S NP Size Unit Cat. Species Annex Other categories
     MinMax C|R|V|PIVVABCD
Ardea cinerea                   
Bufo viridis                   
Coleophora hungariae                   
Hyla arborea                   
Larus ridibundus                   
Locustella luscinioides                   
Myotis daubentoni                   
Natrix tessellata                   
Neomys fodiens                   
Nyctalus noctula                   
Panurus biarmicus                   
Pelobates fuscus                   
Rana dalmatina                   
Sphagnum fimbriatum                     
Sphagnum palustre                     
Sphagnum sp.                   
Sphagnum spp.                     
Sphagnum squarrosum                     
Thelypteris palustris                   
Urtica kioviensis                   
  • Group: A = Amphibians, B = Birds, F = Fish, Fu = Fungi, I = Invertebrates, L = Lichens, M = Mammals, P = Plants, R = Reptiles
  • CODE: for Birds, Annex IV and V species the code as provided in the reference portal should be used in addition to the scientific name
  • S: in case that the data on species are sensitive and therefore have to be blocked for any public access enter: yes
  • NP: in case that a species is no longer present in the site enter: x (optional)
  • Unit: i = individuals, p = pairs or other units according to the standard list of population units and codes in accordance with Article 12 and 17 reporting, (see reference portal)
  • Cat.: Abundance categories: C = common, R = rare, V = very rare, P = present
  • Motivation categories: IV, V: Annex Species (Habitats Directive), A: National Red List data; B: Endemics; C: International Conventions; D: other reasons

4. SITE DESCRIPTION

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4.1 General site character

Habitat class % Cover
N035.00
N0635.00
N0756.00
N152.00
N202.00

Total Habitat Cover

100

Other Site Characteristics

The Velencei-t (Lake Velencei) is situated in the northern part of the plain of Mezofld. In its geological history, the Pannonic plate emerged from its surroundings in the Pleistocene and at the end of the Pliocene. The development of the basin of the lake took place in the boreal warm period of the Holocene when the area sank along two ditchy faults at right angles to each other. Velencei-t is the third largest stagnant water in Hungary. Its water level is heavily fluctuating. To compensate the extreme fluctuation of water level, the regulation of Velencei-t began in the 18th century. In the area reedbeds are predominant. An outstanding value of this lake is that in one place several water bodies of different types are present: the eastern basin is a lowland alkaline lake, while the western basin is a floating mat of Sphagnum sp. with tussock and its accompanying species, ferns and even real peat dweller species. Velencei-t was explored by tourism in the mid-20th century: it is situated within easy reach of the capital. To fulfil the requirements of tourism, reedbed areas were eliminated along the eastern basin of the lake, and the shore zone was filled and built in. At present, natural state is characteristic only of the western basin of the lake.

4.2 Quality and importance

Kiemelt fontossg cl a kvetkezo fajok/lohelytpusok kedvezo termszetvdelmi helyzetnek megorzse/helyrelltsa: Kzssgi jelentosgu lohelytpusok: 3150 Termszetes eutrf tavak, Magnopotamion vagy Hydrocharition nvnyzettel, 7140 Tozegmohs lpok s inglpok Kiemelt kzssgi jelentosgu lohelytpusok: 7210 * Meszes lpok tli sssal (Cladium mariscus) s a Caricion davallianae fajaival Kzssgi jelentosgu llatfajok: mocsri teknos (Emys orbicularis), vrshas unka (Bombina bombina) Kzssgi jelentosgu nvnyfajok: hagymaburok (Liparis loeseli) A site with remainings of ice age relict floating mats of Sphagnum sp. in reedbed areas within the third largest stagnant water of Hungary. The site is qualified as good on the basis of the waterfowl fauna connected to this habitat.

4.3 Threats, pressures and activities with impacts on the site

The most important impacts and activities with high effect on the site

Negative Impacts
RankThreats and pressures [code]Pollution (optional) [code]inside/outside [i|o|b]
MA07i
HF02.03i
HBi
HB02.02i
MA08i
LI01i
HB01.02i
MF03.01i
MA03i
MA01i
MG01.01i
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
MF03.01i
HF02.03i

Rank: H = high, M = medium, L = low
Pollution: N = Nitrogen input, P = Phosphor/Phosphate input, A = Acid input/acidification,
T = toxic inorganic chemicals, O = toxic organic chemicals, X = Mixed pollutions
i = inside, o = outside, b = both

5. SITE PROTECTION STATUS

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6. SITE MANAGEMENT

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6.1 Body(ies) responsible for the site management:

Organisation:Duna-Ipoly National Park Directorate Address: H-1121 Budapest, Kltő u. 21.
Address:
Email:

6.2 Management Plan(s):

An actual management plan does exist:

Yes
No, but in preparation
X
No

6.3 Conservation measures (optional)

ltalnos clkituzsek: A Natura 2000 terlet termszetvdelmi clkituzse az azon tallhat, a kijells alapjul szolgl fajok s lohelytpusok kedvezo termszetvdelmi helyzetnek megorzse, fenntartsa, helyrelltsa, valamint a Natura 2000 terletek lehatrolsnak alapjul szolgl termszeti llapot s a kedvezo termszetvdelmi llapottal sszhangban lvo gazdlkods feltteleinek biztostsa. Specifikus clok: Kedvezo termszetvdelmi helyzet megorzse: A terleten tallhat j llapot tozeglpok, meszes lpok, eutrf tavak kiterjedsnek, szerkezetnek, fajkszletnek megorzse. A terleten tallhat hagymaburok, mocsri teknos, vrshas unka s rti csk llomnyok fennmaradsnak biztostsa. A tbblet vzhatstl fggo jello lohelyek szmra a megfelelo vzelltottsg s vzhztarts biztostsa, vzjrst negatvan befolysol vzrendezsi beavatkozsok nem vgezhetoek. Kedvezo termszetvdelmi helyzet elrse rdekben szksges fejleszts: A lpcserjsek, pionr facsoportok tlzott trfoglalsnak megakadlyozsa az szlpok rgzlsnek elkerlse, a lpi vegetci s a hagymaburok (Liparis loeseli)populcik megorzse rdekben. A nylt vizu lpterletek feltltodsnek, benvnyesedsnek megakadlyozsa, biztostva ezzel a rti csk fennmaradsnak feltteleit. Termszetvdelmi cl ndgazdlkods kidolgozsa s megvalstsa, termszetmegorzsi terleten a nd rizmk mechanikai srlsnek, a ndasok fragmentcijnak, kiritkulsnak megelozse. A hagymaburok (Liparis loeseli) populcik elterjedsi terletn tli, kzi ndvgs alkalmazsa.

 

7. MAP OF THE SITE

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SITE DISPLAY