Dernière lettre d'information du programme Life
Ce numéro sera le dernier de la série. Le programme Life tourbières du Jura s'est en effet clôturé fin novembre 2021 après 7 ans de mise en actions. Au total, il aura permis de réhabiliter 55 tourbières du massif du Jura franc-comtois (soit 300 ha), sur 14 sites Natura 2000 et sur 32 communes. Les objectifs du programme Life tourbières du Jura ont largement été atteints, voire dépassés !
Dans cette lettre de 4 pages, vous pourrez ainsi découvrir les principaux résultats de cet ambitieux programme, les derniers outils mis à disposition pour les gestionnaires (web-émission, recueil d'expériences, etc.), la suite donnée pour la conservation des sites impliqués dans le programme, ainsi que de nombreuses autres informations.
Pour télécharger ce document, cliquez ici : version française.
An illustrated report for the Life Jura peatlands programme
Find in the booklet "A European programme to rehabilitate the Jura Peatlands 2014-2021", an illustrated review of the Life programme, punctuated with testimonials and quantified results.
As you read, you will learn more about the importance of peat bogs for the Jura Franc-Comtois massif, about the works put in place to rehabilitate them, but also about the involvement of the various structures, local elected officials and the public for their preservation.
To download this document, click here: English version.
The collection of experiences from Life tourbières du Jura is online!
This collection aims to share the experience acquired over the seven years of the Life program “Functional rehabilitation of Jura peatlands in the Jura massif”.
It is divided into three parts:
• a general presentation of the program, the peculiarities of the Jura peatlands, then the different approaches and tools used to design the work;
• a selection of 12 concrete examples of rehabilitation work carried out, illustrating the diversity of the problems encountered;
• a review of the different techniques used, from rehabilitation to monitoring, including sites’opening to the public.
En immersion : la tourbière des Rousses, petite sibérie du Jura
Écoutez le podcast de l'Agence de l'eau consacré à la tourbière des Rousse.
Pierre Durlet du Parc Naturel Régional du Haut-Jura vous invite à un voyage exploratoire au cœur de la tourbière des Rousses qui a fait l'objet de restauration dans le cadre du programme Life tourbières du Jura. Un livre d’histoire en plein air, pour qui sait le décrypter.
Closing webcast of the Life Jura peatlands - replay available (in french)
You can see the replay here :
Hydrological restoration of Les Grands Pins peatland - Bellefontaine (39)
The goal : to rehabilitate the hydrolic functionning of the Grands Pins peatland, disturbed by an imposing ditch created in the 1950s, in order to restore the stokage of water and to revive the peat formation process.
The following work has been done :
- June 2020: First picketing and opening for the replacement Nordic track and the location of the palisades
- Septembre 2020: Removal of old pumping facilities in the lake area
- October 2020: Crushing of stumps on the opening of the track
- November 2020: Obliteration of the Grands Pins peat bog ditch
Contracting authority : Parc naturel régional du Haut-Jura
Vandalisme sur un chantier du LifeLe matériel de l'entreprise Jura Natura Services qui avait débuté les travaux de restauration sur la tourbière de l'Entrecôte à Foncine-le-Haut a été volontairement incendié dimanche 12 avril. Les pompiers sont intervenus rapidement et une enquête de la gendarmerie de Nozeroy est en cours. Le feu s'est légèrement propagé de manière superficielle (sur une surface d'environ 400 m²) heureusement sans atteinte importante sur le milieu naturel. Nous pensons fortement à l'entreprise Jura Natura Services qui s'est fait voler sur le même site, une semaine plus tôt, une autre machine et nous lui assurons tout notre soutien.Plus d'informations et photos sur la page Facebook du CEN Franche-Comté.
Lettre d'informations n°10La nouvelle lettre d'information du programme est disponible
On parle du programme dans la Terre au carré sur France InterRé-écoutez Geneviève Magnon de l'EPAGE Haut-Doubs Haute-Loue qui nous parle des tourbières et du programme Life dans l'émission du 12 février de Mathieu Vidard sur France Inter (à 35'45'').
20 ans de connaissance et de restauration sur le DrugeonConférence animée par l'EPAGE Haut-Doubs Haute-Loue le jeudi 13 février, 20h, à la Maison du Temps Libre de la Rivière Drugeon
Newsletter n°9The new program newsletter is available (in french)
Remeandering of Gouterot (Bannans - 25)The 2019 season of life rehabilitation projects begins with the restoration of a tributary stream of Drugeon, the Gouterot. On the program, 2.5 km of water courses will be renatured by remeandering, reload in materials and the reduction of its section. A fish pass will also be modified. The work should last several weeks.
Works in picturesDiscover the works realized in 2018 by the SMMAHD on the Bief Belin peatland (Malpas and La Planée) and the Grande Seigne peatland (Houtaud and Les Granges-Narboz) thanks to two small commented videos.
Newslette n°8The new program newsletter is available (in french)
Presentation of the educational backpack on peatlands
Discover the contents of the backpack created as part of the Life Jura peatlands program. This tool is available to facilitators and structures of environmental education on free loan. Contact us for any request.
The first part of the biggest "LIFE Jura Peatlands" functional rehabilitation project is coming to an end!Started in early September, the first phase of the functional rehabilitation work ends on the peatland of Grande Seigne (Houtoud and Les Granges-Narboz - 25). The 8 wooden palisades were laid and covered with peat. Reception is scheduled for November 22nd. A second phase is planned for 2019. Work done by the company JNS, under control of work of the SMMAHD and assistance to owner of work of Lin'Eco.
First phase of works completed for the peatland of Villeneuve d'Amont (25)
As part of the "Jura Peatlands" Life Program, important work has just been conducted on this peatland, whose hydrological functionning has been disturbed by peat extraction, the creation of a drainage network and the planting spruces in the 1970s.
After the clearcut of the plantation on 3.4 hectares (portage: Municipality of Villeneuve / ONF, realization: SARL Gilles Franchini), the drainage ditches were neutralized on a linear of 850 meters, and works of upwelling were made using sheet piles (CEN carry, made by FCE / Rusthul TP).
The second phase of work, which will take place in 2019, will consist of cutting the plantation on the remaining 1.5 hectares.
Restoration of the Prés de Valfin peatland (St Claude - 25)Following the preparation of the accesses and the edge of the ditches to be filled, the worksite for the restoration of the hydrological functioning really began on the 22/08. To date, 2/3 of the 11 ditches are totally blocked. The merlons perpendicular to the network of small ditches as well as the palisade allowing to put in water a small pit of exploitation are realized. To be continued...
Walk in Haut-HuraNeed outing ideas for this summer? Discover or rediscover the Nanchez peatland and its new trail finalized last year! New interpretation panels were installed this year. To make your mouth water, Jura Web TV devotes a 11 min report to this beautiful site.
Removal of a spruce plantation on the Villeneuve d'Amont Marsh (25)Before any functional rehabilitation works implemented by CEN, the peatland of Villeneuve d'Amont is currently undergoing a cut of its plantation of spruce on about 5 ha. Dating from the 1990s, this plantation was installed on an old peat extraction area. Under project ownership of the municipality, the project is carried out by the ONF. Photo credits: Corvus Monitoring, S.Moncorgé.
Hydrological restoration of Les Rousses peatlands (39)
After the staking phase and the reopening beforehand, the crushing of the vegetation on one sector of La Gouille à l'Ours is now also finalized. The water is flush in several places. The stripping of another sector is planned in the coming weeks.
The creation of the new meandering bed of the Février stream is finalized except on the downstream parts that will be dug once the rectified beds is filled. In order not to mark the ground, the mini-excavator moves on wood plates to distribute the weight. The rescue fishery that will be carry out by the fishing federation will be programmed according to the evolution of the water level.
Heliporting of the wood on the various sectors to be restored was carried out on May 3rd.
Neutralization of drains and impoundment of peat extraction pits continues at the Berthet peatland. 16 ditches are totally obliterated and a pit was put in water.
The work is done by Jura Natura Services
Restitution of school activitiesOn Monday, July 25th, the reception chalet of the Frasne-Bouverans peatland Reserve welcomed the restitution of the work carried out by the CFD schools during animations. The 70 children and the parents present at this convivial moment were able to discover works testifying the acquired knowledge, some of which are still exposed in the chalet. A big thank you to all the people who contributed to the organization and the realization of these animations and this restitution: CFD, SMMAHD, schools, natural animators, teachers, pupils and parents. Photo credit: Laurence Lyonnais
Functional rehabilitation of the Bief Belin peatland (Malpas - 25)Following the reopening of the site and the helicopter transportation of the materials, the hydrological work has progressed well. The old wooded plot in the Planée has been crushed and 3 ditches have been neutralized. The yard stops for a few days time to finish the work at Les Rousses. Discover the first images of the site
Newsletter n°7The new letter program information is available (in french). Last minute information: the works visit to Malpas entered in the agenda is postponed to a later date which will be specified this week on the website
Rehabilitation of an exploitation pit in the peatland of the Red Cross (Les Moussières - 39)
Work on the peat bog of the Red Cross was finalized at the end of April. The drainage of an exploitation pit was blocked by a palisade 25 m long. The re-watering should concern about 2700 m². The general flow of water should reverse and return to its natural path towards the losses to the east of the peatland.
The site under the contracting authority of the Pnr is carried out by Jura Environnement.
The students of the Sorbiers school, just across the road, were able to discover the work during a visit.
Another public visit is proposed Wednesday, May 30 at 18:30.
Photo credit: Pierre Durlet, Carole Zakin and Emilie Calvar.
Work on the Cerneux-Gourinots peatland (Fournet-Blancheroche, Frambouhans and Les Ecorces - 25)
Les travaux de restauration fonctionnelle de la tourbière des Cerneux-Gourinots à Fournet-Blancheroche (25).
Reopening of the "Voie ferrée" marsh (Labergement-Sainte-Marie - 25)About 2 ha of marshes have been reopened in the town of Labergement-Sainte-Marie. The project was coordinated by the association of the Amis de la Réserve Naturelle du Lac de Remoray and implemented by Jura Natura Services.
Neutralisation work at the Sarre à Cordier peatland (Bouverans - 25)The drain neutralisation project implemented by the Syndicat Mixte des Milieux Aquatiques du Haut-Doubs in the municipality of Bouverans was finalized at the end of February. Following a first phase of removal of woody to allow the passage of gear, the company JNS neutralized a pit of 1200 m with 29 tripli panels and sawdust.
Moutat peatland : viewpoint reopening (Mouthe - 25)The Pnr of Haut-Jura has reopened the viewpoint from the belvedere of the Moutat peatland by cutting pine and spruce on about 1400 m². This work will be accompanied in a few weeks by the replacement of the Belvedere interpretation panel. A sign explaining the restoration site will also be placed on the path along the new meander of Doubs.
Functional restoration of the Guinots and the Verbois peatlands (Bonnétage et Le Russey - 25)After the Cerneux-Gourinots peatland at Fournet-Blancheroche, the Syndicat Mixte d'Aménagement du Dessoubre and the Conservatoire d'espaces naturelles intervened on the peat bogs of Russey and Bonnétage. Completed last Thursday, this project included the neutralization of 580 m of ditches and the re-watering of 1.4 ha of old peat extraction pits.
Travaux en images
Les travaux de restauration fonctionnelle de la tourbière du Moutat à Mouthe (25).
Functionning restoration of the Bonne Fontaine streamUnder the supervision of the Friends of the Remoray Lake Nature Reserve, this remeandering and sediment recharge work is underway at Remoray-Boujeons (25). A perpendicular drain will also be neutralized.
Restoration work on the Montat peatland (Mouthe - 25)With the rainfall last Tuesday, the Doubs gets out of bed and floods the nearby wetlands (photo credit: C.Martin). As a reminder, the work carried out in august and september included the remodeling of the stream on 256 m, the neutralization of 1150 m of drain and the re-watering of 0.5 ha of old peat extraction pits.
Celebrating peatlandsMany of you have participated in "Celebrating peatlands" day organized by the Jura peatlands Life program as part of the European Heritage Days. We were very happy to welcome you to the House of the Reserve of Labergement-Sainte-Marie to honor these fascinating habitats! Thanks to the many participating structures and the activities offered, you have been able (and enjoyed) to discover them in many ways and we thank you!
Newsletter n°6You can read the latest newsletter of the program here (in French)
Start of the "Combe du Nanchez" decking rehabilitation work
Les tourbières de la Combe du Nanchez bénéficient d’un des 3 principaux sentiers de découverte de tourbières du Massif du Jura (avec Frasne et le Lac de Lamoura). Vieux de plus de 25 ans, le cheminement est devenu dangereux.
La Communauté de Communes de la Grandvallière et le Parc naturel régional du Haut-Jura ont engagé des travaux pour le refaire, dans le cadre du Programme LIFE « Tourbières du Jura ».
L’Office National des Forêts a été missionné pour réaliser ce chantier sur un linéaire d’environ 450 mètres, incluant deux passerelles franchissant le Nanchez.
Les travaux a débuté le mercredi 26 avril par le démontage de l’aménagement actuel. Le chantier devrait se finir à la fin du mois de juin, pour permettre aux visiteurs estivants de redécouvrir ce site.
Pendant la période de travaux, le site sera inaccessible au public.
Crédit photo : Laurent Beschet, Jean-François Basset et Pierre Durlet
The film "Peatlands, hidden treasures of the Jura montain" presented at the Espace des mondes polaires of PrémanonTo support the launch of the exhibition "Journey to the Land of the Peatlands" at the Espace des mondes polaires, the Life film will be screened on Friday, June 2 at 7 pm. An exchange-debate will follow this projection in the presence of Pierre Durlet of the Haut-Jura Regional Natural Park. The exhibition "Journey to the Land of the Peatlands" will be at Prémanon from the 1st of June until the 5th of november.
Rehabilitation work on Saint-Julien-les-Russey and Bonnétage peatlands (25)The wooded peatlands of the Seigne Grosjean and the Bois du Vernois (Saint-Julien-les-Russey) are currently the subject of work to neutralize drains. The FCE company was selected to carry out this work under the supervision of the Syndicat Mixte d'Aménagement du Dessoubre and the CEN Franche-Comté. The work will continue on the peatland of the Creugnots in Bonnétage then.
The Haut-Jura Regional Natural Park rewarded for the remeandering work of the Nanchez!
The Progrès-Event, EDF and the Departmental Federations for the Fishing and Protection of the Aquatic Environments of Ain and Jura, organized on Friday 24 March 2017 an evening in favor of "Fishing and Aquatic Environments".
During the evening, 7 trophies were awarded for the promotion of activities that preserve or improve aquatic environments or initiatives that promote fishing.
The two departmental federations wished to reward the Haut-Jura Regional Natural Park, with the "Planning Trophy of the Year" for the Nanchez remeandering project. This project was based on the proposal of Ecogéa design office and carried out by the companies Jura Natura Services and Goyard TP in 2016, in the commune of Nanchez (39).
This trophy is the witness that a functional ecosystem, in which rivers and peatlands interact, is favorable to all the components, aquatic or terrestrial. Sustainable restoration of the environment and its functioning must go through a transitional phase in which the equilibriums will be restored and require a little patience.
Through this choice, the "world of fishing" wished to support the park in these actions in favor of aquatic and wet environments.
The trophy was given by Mr. Romain Sarron of EDF to Gérald Husson, Anne-Sophie Vincent and Pierre Durlet, representing the Park.
A clip briefly presenting the Haut-Jura Regional Natural Park was screened at the evening (in french). It was produced by Jean-François Basset and is partly based on images taken by Jean-Philippe Macchioni, during the shooting of the film "Jura, the time of a Mountain", which will be launched in June 2017.
Photo credit © Philippe Trias/Le Progrès
Newsletter n°5You can read the latest newsletter of the program here (in French)
Reopening work along the DrugeonUnder the management of the SMMAHD, an reopening work of a dense willow woodland is currently underway in Bonnevaux (25), bordering the Drugeon river. On the program : cutting wood, grinding, export and rehabilitation of the ground to allow the mowing of the site in the future.
Peatlands, the secret worldBeautiful 8 min movie filmed in the Jura mountains with wonderful shots of some Life peatlands sites.
Work in images
Les travaux de restauration fonctionnelle de la tourbière des Douillons à Nanchez (39).
Training for mountain guidesDuring 2 days, 11 mountains guides attended the training on peatlands proposed by the Friends of the Nature Reserve of Lake Remoray in the Life program. On the program : reminder of the theoretical bases applied to the Jura provided by the Pôle Relais Tourbières and guided tours of the sites in Nanchez by the Pnr of Haut-Jura. There are still places for the proposed training for nature animators the 26 and 27 September.
Inauguration of the Nanchez's peatlands restoration workThe 17 and 18 of September, as part of the European Heritage Days, the Haut-Jura Regional Park inaugurated the work done on peatlands of Nanchez Combe and the Douillons (39). Despite bad weather, fifty people had the opportunity to discover the actions carried out during four tours. Discover the report made by JuraWebTV on the work of Douillons.
Newsletter n°4You can read the latest newsletter of the program here (in French)
Restoration work in the "Douillons" peatland (Chaux des Prés - 39)
The goal : to partially restore the hydrolic functionning of the "Douillons" peatland to unable the stokage of water and to revive the peat formation process.
The following work has been done :
- Cut/mashing and export of wood ;
- Neutralization of drains with peat and wooden panels ;
- Laying of spuce or metalic palisades to stock water in extraction pits
- Creation of marl or clay dike
Contracting authority : Parc naturel régional du Haut-Jura
Contractor : Jura Natura Services and Goyard TP
Remeandering of the Nanchez and the Trémontagne, the work continues!
Objective : To restore the morphodynamic functioning of the river and to restore exchanges with the ground water by removing the draining effect of the river at low-flow periods.
- Grinding the vegetation preventing access to the site;
- Picketing meanders;
- Digging of the future river bed;
- Placing spruce weirs;
- Landfilling the straightened river bed;
- Filling the drainage ditches.
Currently : all meanders of the Trémontagne and the downstream portion of the Nanchez are finalized and refilled with water. The old rectified beds are filled. Small thresholds were installed in key locations of the Nanchez. The ditches of Prénovel peatland are close.
Next steps : implementation of the sedimentary recharge in the new Trémontagne bed and finalization of work on the Nanchez.
Client: Parc naturel régional du Haut-Jura.
Companies : Jura Natura Services and Goyard TP.
Technical assistance : ECOGEA.
Rescue fishing : Fédération du Jura pourla Pêche et la protection du milieu aquatique.
Un nouveau sentier d'interprétation autour du lac de Lamoura (39)Suite au renouvellement du platelage réalisé en 2015, de nouveaux supports d'interprétation ont été installés. L'objectif est de permettre aux visiteurs de "toucher du doigt" quelques-unes des spécificités et richesses des tourbières.
Inauguration : du nouveau à la Maison du ParcLa Maison du Parc du Haut-Jura fait peau neuve avec un nouvel espace consacré aux milieux humides et tourbières au sein de son exposition permanente. Venez l'inaugurer avec nous le mercredi 13 juillet ! Plus d'information sur le site du Pnr du Haut-Jura.
New drains neutralization work being done in the Drugeon basin
Work goal : slow or stop the run-off in the drains to facilitate the creation of peat and to stock water, particularly in low water periods.
The following work will be done : neutralization of the ditches by their total blockage with peat and wooden panels.
Contracting authority : Syndicat Mixte des Milieux Aquatiques du Haut-Doubs
Contractor : Jura Natura Services
Hydrological restoration of the "Creux au Lard" peatland - 2nde phase of work
Objectif : neutralise drains to refill the peatland with water.
The following work had already been achieved in 2015 : neutralizing the upstream drain (570 m) and construction of a 90 m metal fence covered with peat.
The work planned in 2016 :
- Neutralization of 380m of ditches downstream of the dam by their filling and fences (15 in total).
- Creation of a rustic wood deck to replace the one not usable anymore because of the hydrological work (650 m)
Client : Syndicat Mixte des Milieux Aquatiques du Haut-Doubs
Technical assistancev: Lin'Eco and Scop Sagne
Provider : Jura Natura Services
Remeandering of the Nanchez and the Trémontagne in pictures!
The exhibition " Treasures of the Jura peatlands " and the film at the House of the ReserveDuring the February vacation , the House of the Reserve at Labergement-Sainte-Marie presents the exhibition " Treasures of the Jura peatlands " accompanied by the latest film of Jean-Philippe Macchioni " Peatlands, hidden treasures of the Jura mountains." More information on the website of the House of the Reserve.
Movie "Peatlands , hidden treasures of the Jura mountain"
This 24 minutes movie invite you to meet the extraordinary world of peatlands, so valuable natural heritage in the Jura Mountains. Gorgeous commented pictures will transport you to the heart of these discreet and mysterious natural spaces. You will be surprised by these sensitive environments where develops a specific flora and fauna depending of the seasons. This movie was made by Jean-Philippe Macchioni for the Jura Peatlands LIFE Program. 7 bonus were done too.
Newsletter n°3You can read the latest newsletter of the program here (in French)
Teaser - " Peatlands , hidden treasures of the Jura mountain"
Book now your evening to attend the screening of the film :
- Thursday, January 28, 2016 at 20h in Pontarlier Olympia cinema
- Tuesday, February 2nd at 20h in Besancon at Victor Hugo cinema
- Thursday, February 4 at 20h in Saint -Claude in the cinema of the House of the People .
Film of the restoration works done in the "Creux au lard" peatland (25)
Le programme Life à l'honneur à la télévision belge
Visionnez le reportage de la RTBF sur les tourbières du massif du Jura et le programme Life (après 1:50).
Steering Committee n°2 of the Jura Peatlands programThe second steering committee gathering beneficiaries and financers was held this monday in Frasne (25). The morning meeting was meant to review the past year's activities. The afternoon has led participants to see the work done recently : the hydrological rehabilitation work on the Forbonnet peatland in Frasne.
Launch of the restoration work on the Forbonnet peatland in Frasne (25)
The great adventure of restoring the Frasne peatland in the "Creux au Lard" sector, is done after one month and half of work.
The goal : re-wetting the transition marshe affected by drainage and topographic sag.
The following work has been done :
- neutralization of the upstream ditch in the forest raised-bog by its total blockage with peat and 10 wooden panels-570 m ;
- construction of a 90 meters' metal fence covered with peat ;
The neutralization of ditches downstream of the dam, with panels of wood and sawdust, will be done in 2016.
This work was done in partnership with the municipality of Frasne and the NFO. In early summer, the National Forestry Office had already achieved the reopening of the raised-bog for the passage of vehicles. The forest is a communal property and subject to forestry regime. Some sectors, which will be re-flooded post-work, were also thinned out. The loss of earning for the municipality of Frasne will be offset by Life funds.
Contracting authority : Syndicat Mixte des Milieux Aquatiques du Haut-Doubs
Technical assistance : Lin'Eco and Scop Sagne
Contractor : Jura Natura Services
Movie of the drains neutralisations work done in Mont de Voyon marshe
Newsletter n°2You can read the latest newsletter of the program here (in French)
Hydrological restoration of the "Mont de Voyon" fen (Les Granges-Narboz - 25)
Neutralize the network of more than 1.5 km of drains ( 6-7 parallel ditches), to slow the run-off and recharge the marshe with water and ultimately the ground water.
After getting the supplies on site the previous week, the work really took off the 20th of july by grinding willows, a prerequisite to the passage of vehicles. The cleaning of the drains, prior to their neutralisation, began the next tuesday. This cleaning allows to uncover bare peat, which will have more cohesion with the sawdust that is used to fill the drains between each wood panels. 6 small ditches were filled following this technique.
After the completion of this step , the company started to work on the big ditch. 8 fences wood planks have been established.
The work was done in exceptionally dry meteorological conditions that still persist to this day. The impact of work on the water level in the fen is already observable in the field (see photo).
A monitoring on flora and butterflies will measure the long-term biological gain generated by this work.
Life programs Alkfens 7230 in visit in the Haut-Doubs and the Haut-Jura
Late july, the Life Jura peatlands team hosted 12 representatives of both Life Alkfens 7230, programs that aim at the conservation and restoration of alkaline fens in northern and southern Poland.
These two days of work visits on the Haut-Doubs and Haut-Jura were an opportunity to exchange experiences, to confront the issues encountered and solutions implemented in each country.
Restoration work in the "On the Semine" peatland (La Pesse - 39)
Objectif of work
To re-open the old extraction pit and to replenishe it to allow the settlement of "producing peat" vegetation.
Reopenings work began in early spring before the birds nesting period. The branches (willow, birch and spruce) are currently exported to be crushed . Skidding is by means of a low pressure chaser (< 150 g / cm²).
From July 20, the hydraulic restoration began. 4 palisades in untreated spruce planks were installed and covert by vegetalised peat. This workwas done by the compagny "Jura Natura Services" between the 20th of july and the 7th of august 2015.
Work at Lamoura lake - Official opening
The new decking around Lake Lamoura was inaugurated on thrusday in the presence of local elected officials, users of the site and project partners.
Commissioned by the the regional natural park of Haut-Jura and the Community of municipalities Station des Rousses , this project was carried out by two companies : Jura Natura Services and FCE.
Differents phases of construction :
Work on setting up a planking around Lake Lamoura started May 6, 2015.
The first step was to dismantle the old decking, which was no longer functional. To do so, the company JNS used a machine with a ground pressure of less than 150 g / cm².
The second step consisted in the installation of piles and gantries used to support the decking. These shoring stakes, which should guarantee the stability of the path are between 4 and 4.50 meters long. They are embedded in layers of peat and lacustrian chalk to reach the underlying clay layer, ensuring good resistance over time. The acacia stakes are planted with an excavator. In order not to damage the ground, the excavator moves on trays to distribute the weight.
The decking planks started to be laid since mid-june. Upon completion of installation, they were cut to the desired size for good alignment of the final realization.
At the same time, the access, sandblasted, were settled. It remains to herbaceous vegetation to resume his place and cover the soil mobilized during the work.
Thanks to the very favorable low water period, the work was done by mid-july.
Shooting of the movie - Bonus "Tale"
For public enjoyment, the storyteller then shared several other stories of his own. The evening ended with a convivial meal.
Replacement of the active bog decking - Frasne (25)
Former deck allowing access to the living peat (50m) dated 1990 and had a risk in term of safety for this very popular site (15 000 visitors per year). This settlement is replaced as part of the Life program under the SMMAHD supervision, in partnership with the community of municipalities Frasne-Drugeon. The work, undertake by the Dynamic Environment company, ended Friday.
Started June 1srt, the disassembly of the old deck was finalized during the first week of work. A setback to take into account : 58 railway sleepers were found under the old decking. They were evacuated in a landfill before the end of construction. The assembly of the new decking has been now finalized last Friday.
Post-work tour of the "Sur les Seignes" peatland at Frambouhans and Les Ecorces (25)The visit of functional restoration work carried out on the "Sur les Seignes " peatland brought together local officials, ONEMA and ONF agents, farmers and members of local associations , on Friday April 24th.
Galavaux rehabilitation works in picturesLife carried out these reméandrement work has been done on the Jura through the partnership of the Regional Natural Park of Haut-Jura and Conservatory of natural areas in Franche-Comté. Watch movie work
Reopening work on three peatlands in Labergement-Sainte-Marie (25)
Since October, three peatlands in the municipality of Labergement-Sainte-Marie has been reopened under the authority of the Friends of the Natural reseve Lake Remoray association :
- Champs Nouveaux peatland
- Lhaut fen
- Vurpillières peatland
With a total area of 2.7 hectares, this work consisted on the removal of the timber (including spruce and birch) by logging then grinding. The tree stumps were then pulled and returned.
These operations are intended to halt the closure of peaty habitats and maintain biological connections needed for insect fauna, including butterflies : the Violet Copper (Lycaena helle), Moorland Clouded Yellow (Colias palaeno), the marsh fritillary (Euphydryas aurinia) and the Large Heath (Coenonympha tullia).
On the site of the "Lhaut" fen, work will also help to open up the sector to the public through the future construction of a viewing platform: realization of awareness actions and communication on the LIFE program actions.
Restoration works on a peatland at Frambouhans and Les Ecorces (25)
This fall, the peatland "Sur les Seignes" at Frambouhans and Les Ecorces has benefited from the first functional restoration made in the Jura peatlands Life program. Having been an industrial extraction peat from 1968 to 1984, the site was highly degraded: extraction pits where the typical peatland vegetation had difficulty to resettle, drying up areas, asphalt platform built on a part of the bog, etc.
In 2003, a first phase of work carried out by the Conservatoire d’espaces naturels on a part of the site had allowed a resumption of productive vegetation peat where the soil was left bare for 20 years. Further work has therefore been made under the Life program. The goal is to keep an optimal quantity of water for the peatland functioning by creating lockers/tanks. These "individual basins", once in water, allow the resumption of suitable vegetation. Several constructions have been made on these 0.5 hectares of peatland:
- creation of 2 peat barricades (17 m in total) and 3 Wooden fences (135 m in total);
- Cutting birches on 2000 m²;
- stripping of deteriorated peat;
- creating puddles.
The work was carried out from October 13 to December 3, 2014 by ecological engineering company Jura Natura Services based in Labergement-Sainte-Marie (25), under the project management of the Conservatoire d’espaces naturels and for an amount of € 50,274.
The removal of the asphalt platform will be made at the end of Life program, once all the work on the local peatlands has been completed.
The Life in the spotlight on France 3
Radio : un tour dans les tourbièresÉcoutez la belle émission "Carte postale" de RCF et plongez dans le monde des tourbières avec Olivier Billant du Conservatoire d'espaces naturels de Franche-Comté.