Collection of monitoring data continuously throughout the project to aid evaluation

The biotope Schladitz is the regenerated remains of a former installation for the dehydration of sewage sludge implemented in 1952 by the communal waterworks company which used to pump its sewage sludge into the municipality of Rackwitz North of Leipzig. Upon its termination (1990), the company conducted large regeneration works of the contaminated sites from 1991 until 2011. The area was renaturalized, a biotope was implemented with plants species to retain the toxic substances. Now the area is also used for nature experience, observation and environmental education for children and adults (4, 7).

The project involves the formation of a statutory Green Belt of 3,500 hectares as part of the broad strategy of the Tyne & Wear County Structure Plan to restrain the further spread of the built environment and to safeguard the city's countryside from encroachment (Ref 2). The Green Belt prevents small villages to merge with large towns, preserving their individual identities, and also accommodates a wide variety of the borough's environmental assets, including Local Wildlife Sites and wildlife corridors (ref 3). It is claimed to contribute significantly to the city's green infrastructure (Ref 1 & 4).
The Green Belt boundaries have not changed since 1998 (Ref 1), but it is currently (in 2020) under reassessment in response to the development needs of adjacent towns (Ref 1). Thus even though the intervention started almost 50 years ago, it is an ongoing process.

The Bahlui river was prone to floods especially during spring and autumn and as a result of the fact that for almost 40 years there has been no work for the decolouration and sanitation of the river and the industrial enterprises in the county have discharged polluting substances in water (mainly nitrogen and phosphates), Bahlu River has become a polluted river. In addition, some citizens of Iaşi have discarded waste in its bed (especially in peripheral areas). In 2011, a larger project funded by the EU, implemented the regularization of the river. (1)

The Institute of Landschaft and Freiraum together with Grün Stadt Zürich and ETH Zürich is developing a project on how plant biodiversity in the city of Zurich can be maintained through urban ecological design. In collaboration with the University of Lausanne, they will assess fragmentation effects on the species, functional and genetic diversity of wildflower patches, and, more specifically, on the population viability, evolutionary potential and connectivity of selected model species. These results will feed directly into the biodiversity programme at Zurich’s office of parks and open spaces (Grün Stadt Zürich). (Ref 1)

The NBS includes the establishment of a new country park, Elba Park, with the goal to create a haven for wildlife and a space for people to enjoy nature. 52 hectares of former coal-mined were transformed under the management of Groundwork NE (Ref 2 & 3).

This NBS comes as a reply against the municipality of Iasi which in 2013 cited lack of visibility and aesthetic preoccupation decided to cut over 100 linden trees and replace them with Japanese acacia in the city centre. The action enraged the inhabitants of the city who alongside local and national NGOs took the matter into their own hands and protested. As such in 2015 the municipality re-planted the linden trees (1).

MFO park is one of the green infrastructures in the city of Zurich. Instead of designated space between paved streets, MFO-Park uses the structure of an old factory building as its skeleton, taking the form of a multilevel building that seamlessly fits into the surrounding structures. The basis for MFO-Park comes from an old industrial building which used to be a weapons production and testing complex. MFO has received a series of awards, including recognition as the “Most Innovative Contemporary Park or Garden”– a prestigious designation from the European Garden Heritage Network (Ref 1).

The Project "Let's Open the Walls" is an integrated program of urban and social regeneration interventions that aimed to revitalize a portion of the Venice Commune (that is, one in the former neighbourhood Quartiere Due: Dorsoduro, Santa Marta, Giudecca, Santa Croce, San Basilio). The program, promoted by the City of Venice and funded by the Ministry of Infrastructure and Transport in 2004, provides for social inclusion and the weakest sections of the population and involved several interventions, including the planting of trees and the creation of green spaces for social activities. In particular, the Urban Italia program addressed to Venice is named: “Apriamo i Muri” (Opening the walls). It refers to the work-field “Quartiere 2” (District 2), in which are concentrated many actions that the city Administration has planned and approved during these last years. The Administration's objective was to transform and revitalize the degraded areas of the Venetian historical center, also through innovative actions. The program aims generally at urban, infrastructure and social regeneration of the Quartiere 2, moreover, it responds through articulated specific works to the critical complexity of the area. (1 and 4).

The Restoration of degraded wetlands in Wolfschlugen (in the administrative district of Stuttgart) was conducted within the wider regional level of sustainable urban development to enhance resilience, protect the city from flooding, support sustainable development, and safeguard biodiversity. Ditches and craters line the 700 metres long and 50 - 70 metres wide strip of landscape northeast of the development boundary behind the Wolfschlugen forest cemetery. This is formed by the Riederwiesen, which absorb water to protect the place from flooding. The wetland should protect people at least during a so-called hundred-year flood and at the same time offer animals and plants a habitat. (ref 3, 11)

The Garden Janine (formerly called Jardin Nouveau) group is participating in the "Aix en Transition" initiative, which wants to increase food and energy resilience in order to better prepare for the future. This group initiated and supported the establishment of a vegetable garden benefiting homeless people, hosted in the Humanitarian Division of the "Jas de Bouffan" district (Ref. 1). A garden was previously cultivated on the area, but had become dilapidated. In 2019, much of the area was repurposed as an orchard as the vegetable garden was deemed to require too much continual presence/labour (Ref. 6).