Increased conservation or restoration of ecosystems

"Since August 2004, the city of Montpellier has allowed residents to rent plots of garden, called "Les jardins Familiaux"(family gardens). The first plots were located in the Mosson district, but in view of the success of this operation, the city decided to open additional gardens at the Grands Grès site in the Port Marianne district, then at the Rieucoulon in the Croix- Money. The enthusiasts of green spaces can thus indulge in the pleasure of gardening in family thanks to these brackets of greenery. They grow vegetables and fruit as they please"(Ref. 1). Seventeen gardens (as of August 3, 2020) are located in different areas across the city (Ref. 6). "These gardens are urban planning tools favoring the social bond and the preservation of biodiversity and the urban landscape, for the gardeners interviewed these are essentially places of nature and well-being in the city"(Ref. 4)

The intervention was planned to revitalize and clean a derelict area close to the university hospital in Blato. Before the project was implemented, the area was an informal waste disposal site for the locals. The area was neglected for more than 30 years. Initially, Mayor Milan Bandić planned a large urban park with a thermal spa in the spot. The area was cleaned and some of the constructions had begun, but later it stopped due to some political hurdles (Ref 1, 2).
The first phase, cleaning the shrubs and waste from the area has been completed in 2015, but the use of the area has not been determined yet, therefore the project has not been completed (Ref 1).

With its parking areas, ponds, the Lutter stream, playground facilities, walking and jogging paths, the green corridor of Bielefeld, called Luttergrünzug offers recreation opportunity to around 36, 000 people, living in the surrounding areas. As a link between the eastern city center and the district of Heepen, it also enables walking and cycling routes for commuting and shopping away from the busy streets of the city (7). However, the green corridor has been showing some structural and functional defects such as the silting up of the ponds, conflicts between pedestrians and cyclists and the increasing overgrowth of the green belt (8). In order to solve these problems, the renovation and redesign of the Green Corridor was proposed. The regeneration project addresses different needs and requirements of the municipality, namely providing the comfortable infrastructure for pedestrians and cyclists, and the increase of attractiveness of the neighbouring residential areas. In the planning process, special attention was paid to the improvement of the draining system and the reservoirs of the area that will protect the Belt from flooding. (8)

Two regeneration plans were developed with citizens' involvement and presented to the political committee. In 2017, the implementation of the "smaller" variant was voted for, which was already presented in the first citizens' workshop (1, 4).

The landscape in the Bielefeld agglomeration is exposed to stress from high settlement pressure and expansion of the infrastructure as well as in parts of intensive agricultural use (2). Since 2003, the Senne and neighbouring areas of the Teutoburg Forest which is protected under the Europe-wide protected area system, Natura 2000, become part of the funding program of the Federal Agency for Nature Conservation (BfN) and become one of Agency's Large-scale nature conservation projects (NGP) (2, 5,13).
The project area lies in the transition area between two major German landscapes: the Senne as part of the north-west German lowlands and the Teutoburg Forest as part of the Central European low mountain range. The juxtaposition and close interlocking of numerous habitats such as species-rich beech forests, remains of acidic deciduous mixed forests, dry and humid heathland or natural sandy streams form the basis for diverse flora and fauna. Many of the numerous rare plant and animal species are rarely found in North Rhine-Westphalia outside of the NGP area (13).

The natural area complex Senne and Teutoburg Forest was declared by the Federal Agency for Nature Conservation (BfN) to be one of the 30 hotspots of biological diversity in Germany due to its nationwide uniqueness ( overview map ). These “Treasure Chests of Nature” (BfN 2015) distinguish regions in Germany that have a particularly high density and diversity of characteristic habitats, species and populations.(13)
The NGP was funded by the Federal Republic of Germany, the State of North Rhine-Westphalia with contribution of participating municipalities and the North Rhine-Westphalia Foundation (13). The Teutoburg Forest / Eggegebirge Nature Park is also sponsoring the project (12).

In 2014, the Bielefeld Botanical Garden was expanded with a 2,700 land, previously owned by the local municipality. The extension area and the “old” part of the Botanical Garden were visually and functionally separated by the dense, sometimes gloomy woody vegetation of the "new" area where the watercourse and the small reservoirs were barely noticeable. The aim of the redevelopment is to integrate the entire extension area into the old botanical garden using pathways between the old and the new areas of the botanical garden, the improvements of water body and vegetation areas. The redevelopment also includes the renovation of buildings in the "old" area of the botanical garden, the installation of new recreation facilities and the building of a pharmacy garden. The planning and implementation process is lead by the Friends of the Botanical Garden Bielefeld Association (Verein Freunde DesBotanischen Gartens Bielefeld e.V) in close cooperation with the Environmental Agency of the local municipality (1,2, 7,10,11)

"Flowers in the city' is a small project in the northern district of Szczecin to plant multi-species flowers in the green belt between two big city roads. The preparation of the meadow consists of removing the layer of turf and planting the corresponding species of flowers in different colours in different periods of the year so that the flower carpet flourishes for most of the vegetation season. The justification for the project highlights its esthetical effects, its role in serving as a food area for pollinators as well as a cost reduction for the lawn care units due to less annual mowing [1].

The Green and Blue Network in France is a national policy which "aims to restore ecological continuity in order to promote the migration of species and the resilience of ecosystems to face habitat threats and climate change. It also aims to strengthen the place of nature in the city and public awareness." In Montpellier, implementation of "this project has improved knowledge of the city's natural heritage and enhanced ecological continuity, as well as protecting, and sustainably managing high-potential sites and integrating the social dimension, raising public awareness, the observation of nature"(Ref. 2).

El Paseo de Canalejas is "an alley of trees inside the city tracing a central green corridor which exhibits its old ficus whose shades provide a pleasant refuge to the visitors during the hottest days of the year. Those ficus trees are considered as natural heritage." (Ref. 1). "In order to protect the Monumental Arboreal Heritage, Alicante City Council has worked on the elaboration of a Catalog of Unique and Monumental Trees of Local Interest that reflects the inventory of this heritage and provides these specimens with protective measures" (Ref. 3).

“Xarxa de Sendes Urbanes de Alacant(Catalan)/Red de senderos urbanos (Spanish)” (Red of Urban Trails) is a network project developed by the city council consisting of urban trails classified into three types: environmental or natural trails, cultural or heritage trails and city trails, the latter as network connectors. The NBS focus on the first type (environmental and natural trails). (Ref 1) With the implementation of interconnected trails system and signage, the trails offer walks, educative explanation on the different species found in the area and provide leisure, relaxing and physical (running, hiking) opportunities to visitors and citizens. (Ref 2)

The Port of Alicante is finalizing the installation of a new environmental barrier at Pier 17, where bulk unloading is carried out, based on a water atomization method that allows dust particles to fall to the ground of the port area and not arrive by air to the city. (Ref 11) This initiative comprises activities to reduce pollution in the port, such as a vegetable barrier against the air pollution produced by the dust during the unloading of bulk materials, supplied by an irrigation system that recovers non-drinkable water from a nearby plant. It includes the extension of the Parque del Mar, to recover historical points for tourism and the funding of a research project on air pollution (Ref. 12). “This measure is integrated within the Plan of Urban Integration of the Port of Alicante, improving the landscape impact and the port-city boundary zones from the southern access of the urban environment, along with the “Parque del Mar”, to the west zone with the installation of vegetal screens in the inner zone of the port, contributing to an important particle retention and CO2 reduction.” (Ref. 1). Inside the park, which can be traversed through paths, there is a small ornamental lake with rockery and it has children's games and petanque courts, gymnastics courts and recreational areas. The green corridor has been created with the creation of artificial mounds, for which 65,000 cubic meters of earth have been necessary, which act as a vegetal screen and visually and acoustically isolate the port facilities of the city. (Ref 7)