Urban Wilderness
From Wikipedia, the free encyclopedia
Where appreciation for the importance of biodiversity meets the New Urbanism movement, one can find the
pursuit of the creation of urban wilderness. Key traits of urban
wilderness that differentiate it from lawns and other ecologically questionable
forms of plantings are:
1.
Biodiversity - a wide range of species,
both of plants and animals
2.
Minimal maintenance required
for viability - plants that can survive without frequent watering, can
withstand local pollution levels, and do not depend on infusions of fertilizers
or other periodic soil amendments (see xeriscaping)
3.
Deep beds - deep soil
allowing the creation of mature root growth, protection from
drought and destructive temperature changes, and the
development of a healthy colony of microorganisms, worms, and other beneficial
small lifeforms
4.
Native species -
considered use of local varieties rather than exotic species
5.
Unstructured aesthetic
- plants allowed to grow as they wish, where they wish, with minimal space
devoted to paved walkways, trimmed grass, or other artificial environments
6.
Tolerance of ground-cover and thick undergrowth - healthy ecosystems depend on
"messy" micro-environments like decaying logs, thick brush, and muddy
ground.
Urban wilderness has been created by programs as varied as the New York
City Parks Department's Green Streets program (which converts median
strips and other micro-environments into
planted areas) and small programs in such places as Davis, California and Portland, Oregon to reintroduce native
species.
History
The nineteenth and twentieth centuries saw the creation of vast
regions of concrete and asphalt, with minimal space set aside for living things
beyond humans and their pets. Jacob Riis and other reformers fought for
parks in urban areas, but the resulting parks, while a vast improvement, were
formalized, rectilinear arrangements of artificially orderly lawns, bushes, and
walkways.
While many societies had traditions of intense urban plantings,
such as the famously lush rooftops of pre-conquistador Mexico City, such traditions did not reemerge
on a larger scale in the industrialized world until the creation by Calvert Vaux and Frederick Law Olmsted and
others of naturalistic urban parks. The rise of the City Beautiful
Movement enhanced this trend as American, European, and other
cities worked to bring natural settings back into urban areas.
In recent decades activists have sometimes seized the lead from
architects, social planners, and horticulturalists as groups like squatters and Reclaim the Streets
have engaged in guerrilla plantings, from work done in or on abandoned
buildings to more symbolic acts like tearing holes in highway asphalt and then
filling the holes with soil and flowers. These actions have been particularly
effective in creating new planted zones in economically decimated areas like
urban eastern Germany where abandoned buildings are
occasionally reverting to forest. However, this trend can carry its own doom as
beautified areas can work so well that they become targets for gentrification, with thirty foot (ten meter)
trees grown over building foundations being torn down for yet more high density
development.