Earmarked public budget

In Frankfurt, on the banks of the Main, visitors are surrounded by a breath of the Mediterranean. In the Park called "Nizza”, Mediterranean plants thrive on 4.42 hectares thanks to its south-facing position, sheltered from the wind, the favourable solar radiation and the heat storage of the Main (2).
Between 1999 and 2006, the Mediterranean park was reconstructed based on a historical model (6). The renovation project was carried out by the Green Space Office of Frankfurt according to the concept of Rainer Gesell-Schulte as part of the green development project of the inner city (1,6). The Frankfurt Green Spaces Office has been in operation since 1999 with urban qualification and refurbishment entrusted to the banks of the Main. The project aim was to transform the inner city area called Mainufer into a contiguous open space system. The project comprises many different sub-area developments that have different uses, especially on the central promenade and include green spaces, museums, sports and leisure facilities. The spatial anchor point of the project was the “Nizza” Mediterranean Park.
As part of this redevelopment, the "Nizza" was redesigned and renovated. This process included the plantation of winter-resistant Mediterranean plants and other plants with a migration background that have been delighting walkers and visitors to the Main metropolis ever since. (2).

The project revitalized beaches around three lakes near Poznan: Kierskie, Strzeszynskie, and Rusalka. Over 1000-ha of forest and three lakes located within the city borders make this a unique recreational area for the inhabitants of Poznan and its surroundings. The project aims to modernize the neglected beaches and build basic infrastructure and communication paths. The plans involved cleaning of the area, planting greenery, regulation of the lake beachline, introducing environmentally friendly solutions (e.g. solar lamps), open-air playgrounds and gyms, and renovation/installation of the new bridges over the lakes [1].

In 1995 the city of Munich decided to implement a new green residential district in the derelict area of the former Munich-Riem airport which was closed in 1992. (Reference 9) The area was designed to have an intensively used residential area in the north and an extensively used green recreational area in the south. The project was completed in 2005. It is 210 hectares large, making it the third-largest public park in Munich. (Reference 1) The park includes a 10-hectare large artificial lake, a 15-hectare large forest and two 20 meter high artificial observation and toboggan hills made from the demolition material of the former airport. (Reference 9) The park is appreciated by people but concerns about the loss of biodiversity have been raised. Citizens use the park for walking, cycling, swimming in the lake or simply for relaxation. (Reference 4)

The Green Belt in Frankfurt am Main spans in the inner area of the city and covers almost a third of the city's wider area which is around 80 square kilometres, around half of which is the city forest (6). In 1991, as stated in the city council's Green Belt Constitution, the Belt has been declared a protected open space while it also outlined the long term goal of securing and developing it (1). The green belt with its landscapes, excursion destinations and the large network of paths is important for the quality of life in Frankfurt and at the same time offers a place of retreat for plants and animals. It is essential for a good urban climate (1).

The Desjoyaux ZAC in the Crêt-de-Roc district, was created in 2005. Since then, this three-and-a-half-hectare site, which is involved in the process of receiving the "eco-district" national label certification since 2015, has metamorphosed (Ref. 1). Some works aim to renew and embellish the public spaces located near the residences of the street and the impasse Desjoyaux to preserve biodiversity in the city center of Saint Etienne and for the well-being of citizens. (Ref. 1, 2 and 3). Community gardens, park, ephemeral gardens, swales and sustainable water filtration system are being developed in this project (Ref. 1, 2 and 3).

The Brunton Park residential area in the northern part of Newcastle had a history of flooding as a result of urban growth in the local area and developments in the upper parts of the Ouseburn catchment. A total of 62 properties were at risk of sewer flooding whilst 74 properties were located within a flood zone. In 2014, the collaboration of the Northumbria Water, the Environmental Agency and the Newcastle City Council created the Brunton Park Flood Alleviation Scheme with the strategic objective to reduce the potential for flooding of adjacent properties from surface water and the Ouseburn, whilst also developing a sustainable, self-maintaining channel which supports environmental, social and economic purposes at the same time. (12)

The project included physical measures of embankment building, diverting part of the Ouseburn river, installation of sewage storing tank, and creating new water-dependent habitat (12)

"On June 1st 2017, Saint-Etienne Métropole officially committed itself to the implementation of measures to promote the circulation of wildlife between the different green spaces with important biodiversity in its territory" (Ref. 3). "Saint-Etienne Métropole has signed with 13 partners a new contract called "green and blue". It is a new blue and green framework for the whole territory, a regulatory tool for the protection of biodiversity" (Ref. 2). "It aims to continue and reinforce the actions already undertaken with a transversal and urban dimension" (Ref. 2).

Grassland habitats are considered among the most threatened ecosystems in Europe, in particular, dry grasslands which are being constantly and significantly reduced (ref.9).
The NBS intervention consists of the restoration and conservation of two priority habitats of dry grassland (protected areas):(i) Festuco-Brometalia grasslands, are among the most species-rich plant communities in Europe and contain a large number of rare and endangered species; (ii) Pseudo-steppe of Thero-Brachypodietea (ref.1).
The project will take place in three sites on the Apennines: two within the Rome Province and one within the Potenza province, both part of the Mediterranean biogeographical region (ref.9).

The project focuses on the conservation of a locally rare plant (Dictamnus albus L.) and the community of its natural pollinators. At present, European natural populations of Dictamnus albus are declining because of the scarcity of pollination service; in addition to this, suitable habitats (woodland fringes and clearings) are becoming rare due to land-use changes as a result of the abandonment of traditional agro-sylvo-pastoral activities. This project assesses these issues by re-introducing and monitoring the plant in its natural habitat while re-establishing a suitable habitat for the plants and their natural pollinators (1).

The "PROSIT" project aimed at undertaking a series of actions based on environmentally compatible mechanisms to protect and recover the coastal rural territory of Cinque Terre. Today, the terraced landscape is characterised by intense processes of land abandonment and disuse, caused both by practical and economic difficulties of maintenance and by social changes. There is a risk that the damage caused by land abandonment can compromise the area's delicate hydrogeological balance, especially in an area where landslides and floods are highly common (1). A demonstration project to recover abandoned terraces was carried out in five areas of the park (1).