Sites and Ecosystems
Growth responses: How does your garden grow?
The Paradox Clones respond to their climate, soil conditions, environmental
stressors (inc.air quality), and tending. Together the trees of the OneTrees
project will render the diverse microclimates of the San Francisco Bay
The OneTrees proposed and confirmed sites include:
- City Sidewalks - fronting property owners placing them
on the sidewalks
- select San Francisco School District Schools - a pair
of trees at the entrance to the school.
- Bay Area Rapid Transport - pairs of trees at BART stations
- Golden Gate Park - in pairs at the top, mid and base
of the park
- Union Square - as part of the redesign project
- Stairways - the stairways of San Francisco are public
- a tree at top and bottom of the stairs.
Pairwise comparison: Why are the trees planted in pairs?
The trees will be planted in pairs to demonstrate, not only
the effects between the sites, but also record the differences within
the trees that arise even when they are at the same site.
The OneTrees sites will be selected to fulfill the
Planting the Trees:
- Public Accessibility:
The sites for OneTrees need to be publicly accessible. This include
public parks, streets and sidewalks etc. San Francisco tree planting
policy is that the fronting property owner is responsibility for the
trees on the sidewalk in front of their homes - not the city. They are
responsible for their care and any damage they cause. Other counties
have similar policy. Consequently, the project requires people (rather
than sites per se) who will collect this project be taking responsibility
for a pair of trees. Please see the Planting subsection for more infomation
on this and the organizations, Friends
of the Urban Forest and POND,
who are working with us to find sites.
The sites will represent diverse environmental conditions and social
environments. The growth responses of the trees will be most interesting
if they capture the diversity of the Bay Area. Therefore, representation
sites are sought. The tree's growth will respond to variations in: precipitation,
humidity, heat and access to light, soil conditions, particulate matter,
carbon dioxide levels, CO2 levels, and many other polutants and environmental
stressors. The trees will also capture attitudes towards trees as the
respond to care. These slow interactions gradually acrete the different
- Longitudinal Feasibility (and compatible
The long term feasibility of this project depends on aligning the trees
with institutions and infrastructure that have longitudinal stability
i.e. urban features that will be around in 50 years. It is for this
reason that the project is in negotiation with the Bay Area Rapid Transport
Authority; San Francisco School Districts and the Dept of Public Works
amongst others. However, Friends of the Urban Forest (and other similar
organizations nation wide) have demonstrated that private citizens (residential
fronting property owners) are effective stewards of public trees (see
Friends of the Urban Forest), hence the OneTrees project depends on
the active and ongoing participation of local community members.
The planting of the paradox clones has been graciously
facilitated by Friends of the Urban Forest
and POND. FUF is a non-profit
neighborhood tree planting organization that has planted over a third
of San Francisco's street trees and greatly improved the urban environment.
San Francisco has a division of urban forestry that maintains
street trees in some of the parks and on major boulevards. Most of the
public street trees are planted and maintained by the community.
The diversity of local conditions in the Bay Area is not
captured by environmental variation alone, dramatic as it is. In addition
to radically different microclimates the Bay Area has highly balkanized
The biological sameness of the trees will render both the
environmental and social differences to which they are exposed. The trees
will become evidence, witness, and mediator of these differences.
Micro-Climates and Global Climate Change:
Changes in local climate conditions are difficult to relate
to Global Climate change. This project explores how we can link the direct
experience of local conditions with this global concern, and make sense
of our shared environmental conditions. The OneTree
Artificial Life (A-life) section describes this in detail.
Map of the San
Fransisco Bay Area where the clones are being planted.