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 | FR2200390 |
---|
SITENAME | Marais de la Souche |
---|
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: | Ministère de la Transition écologique - DGALN/DEB/SDET/ET5 |
Address: |
|
Email: | en3.en.deb.dgaln@developpement-durable.gouv.fr |
1.7 Site indication and designation / classification dates
Date site proposed as SCI: | 2001-03 |
Date site confirmed as SCI: | 2004-12 |
Date site designated as SAC: | 2008-12 |
National legal reference of SAC designation: | http://www.legifrance.gouv.fr/jo_pdf.do?cidTexte=JORFTEXT000020124366 |
2. SITE LOCATION
Back to top2.1 Site-centre location [decimal degrees]:
Longitude: | 3.841940 |
Latitude: | 49.602780 |
2.2 Area [ha]
2.3 Marine area [%]
2.4 Sitelength [km] (optional):
No information provided
2.5 Administrative region code and name
NUTS level 2 code
|
Region Name
|
---|
FR22 | Picardie |
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
|
Site assessment
|
---|
Code
|
PF
|
NP
|
Cover [ha]
|
Cave [number]
|
Data quality
|
A|B|C|D
|
A|B|C
|
---|
| | | | | | Representativity | Relative Surface | Conservation | Global |
---|
2330
|
|
| 0.3
| 0.00
| M
| B
| C
| B
| B
|
3130
|
|
| 0.12
| 0.00
| G
| C
| C
| B
| B
|
3140
|
|
| 16.35
| 0.00
| M
| A
| C
| B
| B
|
3150
|
|
| 0.14
| 0.00
| G
| B
| C
| B
| B
|
3160
|
|
| 0
| 0.00
| G
| A
| C
| A
| B
|
3260
|
|
| 0.06
| 0.00
| G
| A
| C
| A
| B
|
3270
|
|
| 0
| 0.00
| G
| B
| C
| B
| B
|
4030
|
|
| 2
| 0.00
| M
| C
| C
| C
| C
|
6110
|
X
|
| 0.1
| 0.00
| M
| B
| C
| B
| B
|
6120
|
X
|
| 55
| 0.00
| P
| C
| C
| C
| C
|
6210
|
|
| 16.3
| 0.00
| M
| B
| C
| B
| B
|
6230
|
X
|
| 55
| 0.00
|
| B
| C
| B
| B
|
6410
|
|
| 9.25
| 0.00
| G
| B
| C
| B
| B
|
6430
|
|
| 27.47
| 0.00
| M
| B
| C
| B
| B
|
6510
|
|
| 21.95
| 0.00
| M
| B
| C
| B
| B
|
7140
|
|
| 4.3
| 0.00
| M
| B
| C
| B
| B
|
7210
|
X
|
| 27.53
| 0.00
| M
| A
| C
| A
| A
|
7230
|
|
| 19
| 0.00
| M
| B
| C
| B
| B
|
91D0
|
X
|
| 0.15
| 0.00
| G
| C
| C
| C
| C
|
91E0
|
X
|
| 3
| 0.00
| M
| A
| 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
- 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
|
---|
| | | | | Min | Max | | C|R|V|P | IV | V | A | B | C | D |
---|
B
| A298 | Acrocephalus arundinaceus (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
I
| | Aeshna isosceles (Müller, 1767) |
|
|
|
| i
| P
|
|
|
|
|
| X
|
B
| A055 | Anas querquedula Linnaeus, 1758 |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
P
| | Anemone sylvestris L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
F
| | Anguilla anguilla (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
I
| | Arenostola phragmitidis |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Armeria arenaria (Pers.) Schult. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
B
| A059 | Aythya ferina (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
B
| A021 | Botaurus stellaris (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
B
| A133 | Burhinus oedicnemus (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
P
| | Calamagrostis canescens (Weber) Roth |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Calopteryx virgo (Linnaeus, 1758). |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Campanula persicifolia L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
B
| A224 | Caprimulgus europaeus Linnaeus, 1758 |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
P
| | Carex appropinquata Schumach. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Carex diandra Schrank |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Carex flava |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Carex hostiana DC. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Carex lasiocarpa Ehrh. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Carex panicea L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Carex viridula brachyrrhyncha var. elatior |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Coenonympha glycerion Borkhausen, 1788 |
|
|
|
| i
| P
|
|
| X
|
|
|
|
B
| A122 | Crex crex (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
P
| | Cyperus flavescens |
|
|
|
|
|
|
|
|
|
|
| X
|
P
| | Cyperus fuscus L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Dactylorhiza incarnata (L.) Soó |
|
|
|
| i
| P
|
|
| X
|
|
|
|
P
| | Dactylorhiza praetermissa (Druce) Soó |
|
|
|
| i
| P
|
|
| X
|
|
|
|
P
| | Daphne mezereum L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Diachrysia chryson |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Dryopteris cristata (L.) A.Gray |
|
|
|
| i
| P
|
|
| X
|
|
|
|
P
| | Epilobium palustre L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Epitheca bimaculata (Charpentier, 1825) |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Erica tetralix L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Eriophorum latifolium Hoppe |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Eriophorum polystachion L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Erythromma viridulum (Charpentier, 1840) |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Fragaria viridis Weston |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Gagitodes sagittata |
|
|
|
|
|
|
|
|
|
|
| X
|
P
| | Galium boreale L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
B
| A153 | Gallinago gallinago (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
P
| | Gentiana cruciata L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Gentiana pneumonanthe L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
A
| 1203 | Hyla arborea (Linnaeus, 1758) |
|
|
|
| i
| P
| X
|
| X
|
| X
|
|
P
| | Inula salicina L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
B
| A022 | Ixobrychus minutus (Linnaeus, 1766) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
B
| A340 | Lanius excubitor Linnaeus, 1758 |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
P
| | Lathyrus palustris L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| 1035 | Leucorrhinia caudalis (Charpentier, 1840) |
|
|
|
| i
| P
| X
|
| X
|
| X
|
|
I
| 1042 | Leucorrhinia pectoralis (Charpentier, 1825) |
|
|
|
| i
| P
| X
|
| X
|
| X
|
|
I
| | Lythria purpuraria |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Maculinea alcon |
|
|
|
|
|
|
|
|
|
|
| X
|
P
| | Menyanthes trifoliata L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
B
| A230 | Merops apiaster Linnaeus, 1758 |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
B
| A073 | Milvus migrans (Boddaert, 1783) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
I
| | Oedipoda coerulescens |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Pedicularis palustris L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
A
| | Pelodytes punctatus (Daudin, 1802) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
I
| | Perizoma sagittata |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Pinguicula vulgaris L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Potentilla palustris (L.) Scop. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| 1076 | Proserpinus proserpina (Pallas, 1772) |
|
|
|
| i
| P
| X
|
| X
|
| X
|
|
P
| | Pycreus flavescens (L.) P.Beauv. ex Rchb. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Ranunculus lingua L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Rubus saxatilis L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Salix repens L. subsp. angustifolia (Wulfen) |
|
|
|
| i
| P
|
|
|
|
|
| X
|
B
| A275 | Saxicola rubetra (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
P
| | Senecio paludosus L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Senta flammea |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Sium latifolium L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Somatochlora flavomaculata (Vander Linden, 18 |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Sparganium natans |
|
|
|
|
|
|
|
|
|
|
| X
|
P
| | Sparganium natans L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
I
| | Sympecma fusca (Vander Linden, 1820) |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Thelypteris palustris Schott |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Thysselinum palustre (L.) Hoffm. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
A
| | Triturus alpestris (Laurenti, 1768) |
|
|
|
| i
| P
|
|
|
|
|
| X
|
B
| | Tyto alba (Scopoli, 1769) |
|
|
|
| i
| P
|
|
| X
|
|
|
|
B
| | Upupa epops Linnaeus, 1758 |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
P
| | Utricularia minor L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
P
| | Utricularia vulgaris L. |
|
|
|
| i
| P
|
|
|
|
|
| X
|
- 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
|
---|
N06 | 10.00 |
N07 | 35.00 |
N08 | 1.00 |
N09 | 1.00 |
N10 | 11.00 |
N16 | 37.00 |
N20 | 5.00 |
N06 | 10.00 |
N07 | 35.00 |
N08 | 1.00 |
N09 | 1.00 |
N10 | 11.00 |
N16 | 37.00 |
N20 | 5.00 |
Total Habitat Cover | 200 |
---|
Other Site Characteristics
Vaste dépression tourbeuse plate et alcaline implantée dans une ambiance climatique thermo-continentale sur les confins de la Champagne crayeuse et du Laonnois, les marais de la Souche offrent une remarquable représentation d'habitats turficoles que l'on peut regrouper en trois secteurs :
- une zone humide au Nord de phragmitaies et de megaphorbiaies, peu boisée ;
- une partie centrale façonnée par l'exploitation de la tourbe avec de nombreuses fosses d'extraction, où continue de s'exercer aujourd'hui une forte pression humaine ;
- une zone au Sud, aux paysages essentiellement boisés et en continuité avec la forêt de Samoussy.
L'ensemble présente un grand éventail d'habitats tourbeux alcalins, notamment roselières, mégaphorbiaies, saulaies cendrées, aulnaies et aulnaies-frênaies à Prunus padus, tandis que les stades pionniers de bas-marais ou de tourbe dénudée se sont considérablement raréfiés. Le vieillissement du marais permet cependant d'observer quelques évolutions ombrotrophes et début d'acidification (apparitions de sphaignes et de Dryopteris cristata) évoluant vers la très rare boulaies à sphaignes et Dryoperis cristata.
A ce système tourbeux s'ajoute vers le Sud une gradation périphérique faisant le passage à des pelouses sablo-calcaires et pré-bois thermophiles, et à laquelle est associée la forêt de Samoussy (complexe forestier sur substrat crayeux, masqué par des placages sablo-limoneux, alluviaux ou tourbeux, et ponctué de zones humides et de mares).
Actuellement les marais de la Souche ne fonctionnent plus comme un système exportateur : avec la régression ou la disparition des pratiques de fauche, pâturage, étrépage, tourbage, l'exportation de nutriments est insuffisante pour maintenir un état trophique correct du système. En conséquence, les phénomènes d'atterrissement et de minéralisation de la tourbe, de vieillissement des roselières, cariçaies, moliniaies au profit des mégaphorbiaies et fourrés hygrophiles indiquent les tendances évolutives générales des marais. En outre, la rudéralisation et l'artificialisation de la zone des étangs de tourbage (peupliers, cabanons, essences exotiques diverses,...). Il s'en suit une perte de diversité globale sensible et une régression progressive des intérêts biologiques. La recherche d'un équilibre dynamique et des flux de matière passe obligatoirement par un rajeunissement structural du système et la restauration de pratiques d'exportation de la matière organique telles que fauche avec enlèvement des foins, pâturage extensif, tourbage. Cet équilibre pour être efficace ne peut se concevoir qu'à l'échelle de l'ensemble du marais et de sa périphérie. Un programme de gestion globale du marais, avec une prise en compte des espaces forestiers de Liesse, Marchais et Samoussy, doit être repris prioritairement et rapidement. |
4.2 Quality and importance
Cet ensemble constitue un exceptionnel réservoir biocoenotique avec de nombreux intérêts spécifiques :
-floristique : très nombreuses plantes rares et menacées, cortège turficole alcalin, flore thermo-montagnarde calcicole, 24 espèces protégées, nombreux isolats d'aire et limites d'aire,...
-ornithologique : site exceptionnel inventorié en ZICO et désigné en ZPS, avifaune nicheuse paludicole et forestière rare, nombreuses espèces menacées au plan national
-batrachologique
-mammalogique : la Loutre est attestée ici jusqu'en 1965,
-entomologique : très nombreuses espèces rares et menacées, en particulier avec Leucorrhinia pectoralis, Lycaena dispar et Maculinea alcon rebeli,
-malacologique: présence de 2 espèces de Vertigo |
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 |
---|
Rank | Threats and pressures [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
---|
M | A03.03 | | i |
M | A04.01 | | i |
M | A04.03 | | i |
H | A07 | | i |
H | A08 | | i |
M | A09 | | o |
M | A10.01 | | i |
H | B01.02 | | i |
L | E03.03 | | i |
M | H01.01 | | b |
H | I01 | | i |
H | J02.07 | | o |
M | J02.12 | | i |
M | K02 | | i |
M | K02.02 | | i |
M | A03.03 | | i |
M | A04.01 | | i |
M | A04.03 | | i |
H | A07 | | i |
H | A08 | | i |
M | A09 | | o |
M | A10.01 | | i |
H | B01.02 | | i |
L | E03.03 | | i |
M | H01.01 | | b |
H | I01 | | i |
H | J02.07 | | o |
M | J02.12 | | i |
M | K02 | | i |
M | K02.02 | | i |
Positive Impacts |
---|
Rank | Activities, management [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
---|
H | A03.02 | | i |
H | A04.02 | | i |
H | B03 | | i |
M | D01.01 | | i |
H | A03.02 | | i |
H | A04.02 | | i |
H | B03 | | i |
M | D01.01 | | i |
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 | [%] |
---|
Public | National/Federal | 0 |
State/Province | 0 |
Local/Municipal | 0 |
Any Public | 0 |
Joint or Co-Ownership | 0 |
Private | 0 |
Unknown | 0 |
sum | 200 |
4.5 Documentation (optional)
No information provided
5. SITE PROTECTION STATUS
Back to top5.1 Designation types at national and regional level (optional):
Code
|
Cover [%]
|
---|
FR00 | 7.00 |
FR03 | 4.00 |
FR31 | 2.00 |
5.2 Relation of the described site with other sites (optional):
Designated at national or regional level:
Type code
|
Site name
|
Type
|
Cover [%]
|
---|
FR03 | Marais de Vesles-et-Caumont | + | 0.00 |
5.3 Site designation (optional)
No information provided
6. SITE MANAGEMENT
Back to top6.1 Body(ies) responsible for the site management:
Organisation: | Conservatoire d'espaces naturels de Picardie |
Address: | |
Email: | |
Organisation: | AMSAT des marais de la Souche |
Address: | |
Email: | |
Organisation: | La Roselière (gestionnaire RNN) |
Address: | |
Email: | |
6.2 Management Plan(s):
An actual management plan does exist:
6.3 Conservation measures (optional)
No information provided
7. MAP OF THE SITE
Back to top
No information provided
SITE DISPLAY