Regional government

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).

"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 park acts as a source of biodiversity for the whole Padana Plain. Many species are threatened by the loss or degradation of their habitats and the invasion of alien species. Of particular concern are the loss and degradation of wetlands and the degradation of streams, springs and secondary water courses. This project aims at restoring the natural habitat and reintroducing the original plant an animal species, while keeping under control invasive alien species. (1). The project is set to end on 31st of October 2020. (1)

A previous mining site was redeveloped into the Puits Couriot Park-Museum of Mining. "A first part of the park was opened to the public in 2006. Since then, the developments have followed one another and others are to come in the near future, among others, the footbridge spanning the railway line" (Ref. 5). The park was redesigned from 2014-2017 with the intention to preserve the historical heritage of this museum of the mine. "The park Joseph Sanguedolce (or also mentioned as Couriot Park) is designed to meet the usages of all, in a gentle logic of appropriation of the site by nature, conducive to walking and relaxation. The large lawn is maintained for sporting activities or relaxing in the grass, in the sun ..." (Ref. 3).

The green area which surrounds the famous museum has been renewed in the last years. It is an interesting site of botanic interest, as there are more than 400 species of plants living there, and more than 150.000 trees. In particular, the company Slow Food Campania cultivated a small vegetable garden. Is a project of small- scale agriculture, in order to enhance a variety of cultivation and biodiversity conservation. The company Slow Food has been supported by the company Lande srl, specialized in the revitalization of historical green areas at the urban level (Ref.1).
The interventions include the restoration and re-functionalization of 10 areas: the Garden and Casamento Torre, the Giardino della Fruttiera di basso, the Fagianeria, the Capraia, the Porta di Mezzo, the Cisternone, the Cellaio, the Vallone di San Gennaro, the ex Eremo dei Cappuccini (Ref.1).

"Tirone Alto Vesuvio" is a park situated within the Vesuvio area in Naples, this area was recently qualified as an eco-campus (green infrastructure), a project realized in 2011 according to the European guidelines for sustainable tourism. In particular, the eco-campus has the goal to promote sustainable and zero-impact sports activities, in order to spread awareness on ecological issues. In addition, it provides important health benefits and social and cultural advantages (Ref.1).

"In order to make this center area attractive and dynamic, the EPASE (Saint-Etienne Public Development Agency) and the town hall of Saint-Etienne have set up an ambitious eco-neighborhood project. This project is based on public spaces that are built on an original urban park model where nature is the driving force behind the site. Nature is at the heart of this "park city" project, realized in record time: in a year and a half, the vast majority of the park's work has been carried out and the neighborhood has begun to change."(Ref. 1)

The urban development project between Little Lungegård Lake and Big Lungegård Lake (Store Lungegårdsvann) involves the creation of a canal between the two lakes as a means of runoff management, among other things. Water quality and flood protection are fundamental issues that are considered in this project as the city is expecting increased levels of precipitation due to climate change. The rest of the urban area will be transformed into an attractive modern city centre area with water as the most important element (Ref 1, 4).

The Braid Burn is a highly urbanised watercourse that has been significantly modified to improve drainage. Prior to re-meandering of the Braid burn, it was constrained in a narrow, brick-lined channel with little character, offering a poor habitat and possessing low species diversity. The restoration work reintroduced diversity to allow natural morphological and ecological processes to take place (ref. 2). A new wetland habitat was created, along with a flood storage area. It was a small component of a wider flood alleviation scheme by the City of Edinburgh (ref. 1).