Environmental quality

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 intervention will be carried out in the Zen neighbourhood, as part of an overarching project which includes the care of green areas and plantation of new trees in the parks, especially those close to public schools. There will be 11 specific areas of intervention within the Zen neighbourhood. In addition, it is underlined the specific service provided by those new areas, such as the positive impact of the green view, the mitigation of effects such as urban pollution and human impact on the environment. (Ref.1.)

Allotment gardens have a long tradition in Hannover, with approximately 20.000 gardens stretching around the city as a green belt. In the last decades, some gardens were threatened by disappearance due to investment interests (Reference 1). With the goal to protect these gardens, the city employed a so-called "Kleingartenkonzept" (allotment concept) in 2016 with the help of the association of allotment gardens (Bezirksverband Hannover der Kleingärtner e.V.). The concept aims to keep the number of existing gardens for social and ecological considerations while allowing for new residential investments which is vital for the growing city. (Reference 2).
As part of the concept, extensive inventory examinations were conducted on areas affected by conversion and restructuring, along with the start of implementation of smaller development projects for housing and the creation of replacement gardens in some areas. Because the need for residential spaces has been covered for until the end of 2019, the conversion of allotments for the said land use has been stopped; it will be revisited in 2024. (Reference 2)
To address the problem of future allotment garden losses, gradual elimination of permanent vacancies has started by creating new smaller and more attractive gardens from oversized ones, by improving accessibility and optimizing spaces, and by modernizing allotments (Reference 2).

The Belvoirpark has its origins in the 19th century and is one of the oldest landscaped gardens in the region. Set on a beautiful location close to the lake with views of the city and the mountains, the Belvoirpark has retained its specific topography with large level differences and exotic trees. Since the twenties, Gastrosuisse operates here a Hotel Management School with an upscale, publicly accessible restaurant. The former school building was spatially and functionally not integrated into the parkA huge transformation of the Belvoirpark area was done to make the park more green from 2004 – 2015. The transformation of the area around the new construction of the replacement building allowed a reappraisal of the previous situation. (Ref 1)

The Generalunternehmung Losinger Marazzi AG is developing a sustainable city quarter with Greencity, incorporating alley trees, pocket parks, house gardens, and green areas attached to the buildings (Ref 2). The landscape concept contrasts the new concentration of urban housing, services, and businesses with the landscape’s natural geomorphological features. The place is very close to the Sihl river. The river landscape defines western and eastern Manegg which benefit from other characteristic natural features, forests and the grasslands of the Entlisberger embankment. The newly erected, densely built “GreenCity” dovetails with the natural landscape it’s nested in (Ref 1).

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)

An ongoing extensive expansion of park Lauta in Plovdiv has been carried out. The primary nature-based means used in the project is tree planting. However, animals were also introduced to the habitat. The project aims at creating a suitable place for recreation, purifying the air of Plovdiv, and enriching the park's fauna (Ref. 2; Ref. 3; Ref. 7).

Renovations were conducted on Bayard Street, an artery in Toulouse, between 2016 and 2017 Rue Bayard, in anticipation of the arrival in 2024 of a new metro station and the complete overhaul of the Matabiau district (Ref. 10). Renovations included introducing vegetation to the commercial street leading to Matabiau station (Ref. 5) and its newly renovated city centre via planting 81 trees (44 pear trees and 37 hazel trees of Byzantium) (Ref. 2). Furniture was also added and sidewalks were widened for greater pedestrian comfort (Ref. 2).

Iasi is a city with a relatively high number of parks and this NBS is part of an initiative of the municipality of Iasi to restore green area affected by the passage of time. The green space in the Orăşel Park was inhomogeneous as vegetation with unpopulated areas of trees (the centre of the park) in contrast to agglomerated vegetation areas.
The growth of woody vegetation had in some respects changed the appearance of the landscape ensemble, creating agglomerations of shrubs and trees. As such the municipality took the decision to rehabilitate the area (1)

This NBS was developed in 2015 by the Romanian Association of Permaculture in order to bring nature and its benefits in the middle of the city. The approach was to implement a vegetable garden in a high school in Iasi located in a quarter dominated by building blocks. The implementers had in mind to reconnect children with nature, to present to them the organic process of how food is produced and to teach them basic occupational skills (1)