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)
SITE | FI0303019 |
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SITENAME | Onkilammi-Tunturilammi |
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TABLE OF CONTENTS
1. SITE IDENTIFICATION
Back to top1.1 Type
1.2 Site code
1.3 Site name
1.4 First Compilation date
1.5 Update date
1.6 Respondent:
Name/Organisation: | Hämeen elinkeino-, liikenne- ja ympäristökeskus |
Address: |
|
Email: | |
1.7 Site indication and designation / classification dates
Date site proposed as SCI: | 2002-05 |
Date site confirmed as SCI: |
No data
|
Date site designated as SAC: | 2015-04 |
National legal reference of SAC designation: | Asetus 354/2015 |
2. SITE LOCATION
Back to top2.1 Site-centre location [decimal degrees]:
Longitude: | 24.151400 |
Latitude: | 60.939200 |
2.2 Area [ha]
2.3 Marine area [%]
2.4 Sitelength [km]:
2.6 Biogeographical Region(s)
3. ECOLOGICAL INFORMATION
Back to top3.1 Habitat types present on the site and assessment for them
Annex I Habitat types
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Site assessment
|
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Code
|
PF
|
NP
|
Cover [ha]
|
Cave [number]
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Data quality
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A|B|C|D
|
A|B|C
|
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| | | | | | Representativity | Relative Surface | Conservation | Global |
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3150
|
|
| 15.8
| 0.00
| P
| B
| C
| B
| B
|
- 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
|
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G
|
Code
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Scientific Name
|
S
|
NP
|
T
|
Size
|
Unit
|
Cat.
|
D.qual.
|
A|B|C|D
|
A|B|C
|
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| | | | | | Min | Max | | | | Pop. | Con. | Iso. | Glo. |
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- 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 |
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Group
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CODE
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Scientific Name
|
S
|
NP
|
Size
|
Unit
|
Cat.
|
Species Annex
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Other categories
|
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| | | | | Min | Max | | C|R|V|P | IV | V | A | B | C | D |
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P
| | Stratiotes aloides |
|
|
|
|
| P
|
|
|
|
|
| X
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- 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
Back to top4.1 General site character
Habitat class
|
% Cover
|
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N06 | 100.00 |
Total Habitat Cover | 100 |
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Other Site Characteristics
Onkilammi ja Tunturilammi ovat Renkajärven alapuoleisia läpivirtausaltaita. Kummankin järven vedenkorkeutta on aikanaan laskettu vesistöreitin perkauksen yhteydessä. Tunturilammi on kauttaaltaan noin metrin syvyinen ja Onkilammi vain hieman tätä syvempi. Noin kolmannes lampien avovesialasta on ilmaversoiskasvillisuuden peitossa. Lampien vesi on ravinteikasta ja happamuudeltaan neutraalia, koska järviin purkautuu lähdevesiä läheisistä harjuista. Vesikasvillisuus on runsasta ja monipuolista. Lampien rannoilla on vaihtelevan levyisiä luhtasoita ja Tunturilammella lisäksi rämettä. Ilmaversoisista vesikasveista runsaimmat ovat järvikorte, järviruoko, pullosara ja leveäosmankäämi. Kelluslehtisistä vesikasveista runsaimmat ovat uistinvita, isoulpukka ja lumme. Uposkasveista vallitsevia ovat kiehkuraärviä, vesirutto, ruskoärviä, pikkuvita, pikkupalpakko ja vesiherneet. Lampien harvinaisin ja parhaiten runsasravinteisuutta ilmentävä kasvilaji on sahalehti, jota kasvaa harvakseltaan kasvillisuuden aukkopaikoissa. |
4.2 Quality and importance
Lammet ovat luontaisesti runsasravinteisina vesistöinä arvokkaita. Alueen luonnontilaisuus on lähellä alkuperäistä tilaa.
Ympäristön pelloilta tuleva ravinnekuormitus saattaa aiheuttaa kasvillisuuden liiallista runsastumista ja johtaa matalien järvien umpeenkasvuun.
Suojelutavoitteen määrittely:
Tietlomakkeen taulukossa 3.1 mainittu luontotyyppi kuuluu alueen suojeluperusteisiin ja sen suojelutavoitteena on vähintäänkin alueen merkityksen säilyttäminen osana verkostoa.
Lisäksi alueen suojelussa ja hoidossa painotetaan seuraavia tavoitteita:
Luontotyypin laatua parannetaaan tarvittaessa ennallistamis- ja hoitotoimenpitein. |
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 |
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Rank | Threats and pressures [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
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M | H01.05 | | i |
L | K02.02 | | i |
Positive Impacts |
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Rank | Activities, management [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
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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
4.4 Ownership (optional)
Type | [%] |
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Public | National/Federal | 0 |
State/Province | 0 |
Local/Municipal | 0 |
Any Public | 0 |
Joint or Co-Ownership | 0 |
Private | 100 |
Unknown | 0 |
sum | 100 |
4.5 Documentation
Linkola 1935: Kesien 1932 ja 1935 havaintoja etelähämäläisistä järvistä. Käsikirjoitus. Helsingin yliopiston kasvitieteen laitos.
Uotila, P., Haapanen, A. & Uotila, M. 1977: Hattulan luonnon suojelu. Inventointi ja suositus toimenpiteiksi.-Hattulan kunta. Luonnonsuojelutoimikunta 1977.
Häyhä, T., Haavisto, T. & Orpana, T. 1996: Kalataloudellisesti ja luonnonsuojelullisesti arvokkaat pienvedet Etelä-Hämeessä.-Uudenmaan ympäristökeskuksen monisteita, nro 12.
Tietokantapäivitys 2016:
Häyhä, Teppo 2006: Onkilammen-Tunturilammen Natura 2000 -alueen vesikasvillisuus ja luontotyypit. Hämeen ympäristökeskuksen moniste 106/2006. |
5. SITE PROTECTION STATUS
Back to top5.1 Designation types at national and regional level:
Code
|
Cover [%]
|
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FI00 | 100.00 |
5.3 Site designation (optional)
Onkilammen eteläpuolitse kulkeva Onkilammenharjun selänne on osoitettu Hämeen maakuntakaavassa merkinnällä MYg, Tunturilammen ympäristön harjualueet merkinnällä MU. Itse Natura -alue on osoitettu SL- ja nat-merkinnöillä.
Suojelun toteustapa on vesilaki ja ympäristönsuojelulaki. |
6. SITE MANAGEMENT
Back to top6.1 Body(ies) responsible for the site management:
Organisation: | Hämeen elinkeino-, liikenne- ja ympäristökeskus |
Address: | |
Email: | |
6.2 Management Plan(s):
An actual management plan does exist:
|
Yes
| |
| No, but in preparation |
X | No |
7. MAP OF THE SITE
Back to top
No data
SITE DISPLAY