Protect and enhance urban habitats

The lagoon has a great local significance for its biodiversity with the presence of certain species of rare birds regularly stationed in this area. Much of the biotope was degraded in the last decade by systematic embankments, constructions, as well as the inconvenience caused by various man-made pressures. A project was developed to reconstruct the area within the framework of a collaboration of the Institute of Marine Biological Resources, Inland Waters of HCMR, and Hellenic Ornology Company. The project offers directions for completing a protected region and proposes specific projects and actions of scientific monitoring, ecological rehabilitation, regeneration, and promotion. (Ref 3)

A significant expansion of the summer water level in the biggest local natural river, Giber River, was carried out in Aarhus. The increase in water flow in Giber River was achieved by a range of different measures, such as pumping purified wastewater into the river and building a string of rainwater collection ponds that will be allowed to slowly drain into the river. (Ref. 1)

The botanical garden of Athens was reconstructed in 2004 to protect and maintain the biodiversity of the area. Covering a land of 1,860 sq.m., this Botanical Garden hosts over 2,500 different kinds of plants from all over the world and a rich variety of flora. All the plants and trees are protected in the park. The community also sends seeds all over the country to spread and maintain biodiversity throughout the region and hold agroecological events to increase the concern and educate the locals (Ref 1,3). The park also has a lake and a library inside it. (Ref 2)

The intervention included the renovation of lake Jarun and its surrounded park and recreational centre. Efforts were made to improve the amenities at the lake and park in order to bring it closer to the citizens, particularly to disadvantaged groups. It provides facilities for walking, bicycling, various outdoor sports, trim-track of 6500 meters of length, roller skating, etc. Sports facilities are related to an impressive 2250 meters long regatta path where international and world rowing, canoe and kayak contests are held. With daily training and performances, they give Jarun a special, sporting atmosphere (Ref 1, 2, 3, 4).

The Green Bridge at the D2 motorway in Moravian Svätý Ján (Dúbrava locality) is a project under the Alpine Carpathian Corridor Project (ERDF). The project deals with biodiversity and is focused on building a safe and efficient passage for migrating animals over the D2 motorway connecting Bratislava and Brno (Czech Republic). The mountain ranges of the Alps and the Carpathians, which straddle the border of Austria and Slovakia, are the largest sources of biodiversity in Central Europe. The Corridor’s structure has created a forum for the managers of these regions to share ideas and develop solutions that can be applied within the entire region, instead of only per protected area. To ensure long-term continuity, key stakeholders are party to a Memorandum of Understanding that can contribute to sustainability in their area of responsibility. (1, 5, 6)

This project was implemented on the rooftop of a ten-floor building with a floor space of 1.4 hectares, with the implementation of a green roof of 650m2. The motivation behind this was to study the thermodynamic impact of a green roof in hot Athens. Results concluded that the greenroof significantly affected the thermal performance of the building. Energy savings of 50% were observed for air conditioning on the floor directly below the installation. In addition to the energy-saving benefits, the study also found increased biodiversity in the area. A plethora of birds and beneficial insects were observed on the roof, ranging from robin redbreasts, yellowhammers, yellow tits, coal tits, and sparrows to kestrels hovering high above eyeing up the smaller birds. Other species such as honey bees, tiger swallowtail, monarch butterflies, dragonflies and ladybugs were also seen (Ref 1). The study suggested in improved micro-climate and biodiversity of the constitution square (Ref 1, 6, 7).

Opened in 2019, the René-Dumont Park which runs adjacent to a railway is "a centerpiece of the urban composition of the Nouveau Saint-Roch neighborhood" in Montpellier. (Ref. 1 and 2). This north/south 1.2-1.3 ha vegetation corridor represents a major of the city's urban renewal plan and "allows a great articulation among existing habitats, infrastructures and a contemporary neighborhood" (Ref. 2). The large area is considered to be exceptional for dense urban centres (Ref. 2). "The Nouveau Saint-Roch district is an example of a social, generational and functional diversity" (Ref. 2).

In 2009, the city of Montpellier launched a large census project to valorize its abandoned areas. The study gives guidance on the management of abandoned areas in Montpellier, particularly in connection with environmental education and awareness objectives (Ref. 2). The strategy aims to preserve and promote the natural heritage of Montpellier; promote wastelands as reservoirs of biodiversity, tools for connecting natural spaces; protect and enhance the great green flows accompanying watercourses (biological links and privileged sites for fauna and flora); and develop a network of soft transport throughout the city based on the green network (rivers, agricultural, natural and park areas) (Ref. 4). "The spaces have been classified according to their context, their origin, their potential. This sometimes subjective typology presents a classification of the wasteland and makes it possible to take a particular look on each land. Surfaces of all shapes and sizes fall within this operational classification." Four Experimental projects include: Zenith Friche, Promenade of the Lironde, Pastourelle, Combemale" (Source: uploaded document).

"The Lez is a small Mediterranean river 28.5 km long, born from a karstic exurgence whose supply zone extends north of the source, over more than 150 km2. The “Le Lez” site was proposed in February 2001 because of the presence of several species and natural habitats protected at European level. The designated part concerns the upstream course of the Lez river, its riparian forest and associated agricultural environments. Covering an area of ​​144 hectares, the area stretches over 14 km from the Lez sources in Saint-Clément-de-Rivière to the Concorde bridge, in the town of Montpellier" (Ref. 4). Strong economic and demographic development near Le Lez implies urban pressure on peripheral sectors, particularly north of Montpellier where many residential areas are developing. The river became protected thanks to the "Natura 2000 European network" which aims to reconcile human activities and the conservation of biodiversity on the basis of the main principles of sustainable development (Ref. 4).

The agriparc of the Mas Nouguier is an agricultural reserve entirely maintained by the city of Montpellier. Conducted in organic agriculture, the estate contributes to the preservation of the identity of the territory and to the valorization of the living environment. Accessible to all, it offers a beautiful walk in the middle of the vineyards. Apiaries are used to develop educational workshops and to collect honey with school children. Olive trees, centennial pines and a large meadow come to embellish this little bit of countryside in town (Ref. 1).