In contrast to the two natural-science perspectives presented above, the understanding of “naturalness” and “wilderness” for the general public, but also for local stakeholders, is generally broader, but also individually very different, as studies by Rink (2005) and Bauer (2005) show. This runs the risk that significant qualitative differences between the different types of urban […]
Category: Wild Urban Woodlands
Naturalness from a prospective perspective
The retrospective approaches, which evaluate the naturalness of areas by comparing them with conditions that haven’t been influenced by humans, have a long tradition. This is due to the fact that the specific natural development of urban-industrial sites was recognized in ecological research relatively late. There are, however, a few authors, little-recognized today, that early […]
Scientific approaches to naturalness
For about one hundred years, numerous approaches for scientifically classifying the naturalness of vegetation types and ecosystems have been developed. They share the fact that they evaluate varying degrees of naturalness or, reciprocally, they evaluate the extent of human influence. They share the further characteristic that a defined reference point of maximum naturalness is often […]
Are urban-industrial woodlands natural?
The question of the naturalness of urban woodland types leads, undeniably, to starkly varying answers. The differences have to do with the different histories of the stands (Table 2), and also with differences in perceptions of naturalness, which vary dramatically across different geographic reference areas and between different social groups (e. g. Henderson 1992; Ewert […]
Species pool
A fundamental feature of the urban species pool is the prevalence of nonnative species that were introduced accidentally to urban habitats or that escaped from cultivation (Kowarik 1995). As a consequence, non-native species play a large role in reforestation processes on urban abandoned areas, but are significantly less important on peri-urban sites, for example, during […]
Agency of natural mechanisms
The leeway for the agency of natural mechanisms is significantly greater in urban-industrial woodlands than in woodlands used for forestry or in those resulting from urban greening. The latter two are usually heavily influenced by the initial plantings, and by use and maintenance. On urban – industrial abandoned areas, in contrast, the ecosystem dynamics are […]
Urban-industrial woodlands: a new woodland type emerges on specific urban sites
As post-industrial uses are often not possible in the areas affected by structural change, the abandonment of sites is a signal for the development of a new type of urban-industrial forest by natural colonization processes. In the German Ruhr, this new forest type is widely dispersed across sites of the iron and steel industries and […]
Woodlands that result from urban greening
Stands of trees that present forest characteristics can develop from large – scale planting of trees in park areas, but also from street trees and restoration plantings. Because such stands are determined based on functional goals and are often designed and maintained from artistic-aesthetic perspectives, woodlands resulting from urban greening are heavily culturally influenced. An […]
Woodlands as a part of the traditional cultural landscape
Virgin, natural woodlands were transformed into elements of the traditional cultural landscape when their structure and species composition were heavily influenced by historical or modern silvicultural uses (e. g. woodland pastures, reforestation partly with non-native species; Pott and Huppe 1991; Zerbe 2004). The habitat continuity of such woodlands can still be quite high when it […]
Remnants of pristine forests
Remnants of pristine forests are usually understood to be non-urban forests, far outside the impact area of cities. They can, however, occur as periurban woodlands and even as isolated urban woodlands in the centers of cities. An example of the latter is the oak-hemlock forest that today lies in the middle of the Bronx as […]