HANCHAO ZHANG
Negative Carbon Growth in the Atmosphere

 

 

 

Image

The Infrastructure Complex

The Infrastructure Complex

 

Urban reforestation can be integrated with transportation corridors and future wind farms. It is a layer of green infrastructure to transfer carbon dioxide from the atmosphere to the biomass and soil for sequestration. The original slope next to the expressway could be modified to fit a larger volume of biomass. The transit station could function not only for railroad but also as a connection between the hill-top and the valley.


 

Image

GHG Emissions Timeline

 

 

 

 

 

 

 

 

 

 

 

Greenhouse Gas Emissions Timeline

 

Since the beginning of the Industrial Revolution,  energy consumption, transport and industrial emissions, deforestation have become important sources of carbon emissions. Especially after 1950, the total amount of carbon in the atmosphere increased dramatically as urban areas sprawled.


 

Image

Section

The Integration of Urban Reforestation

 

The city of the future may be embedded in the tree layer, above the roots and soil, below the tree canopy. The parking lot and streets could be integrated with the reforestation grid, permeable surfaces, and rain garden. 

 


 

Image

Nursery Perspective

Tree Nursery Field Perspective

 

The tree nursery field could include multiple species rather than a single one, which makes it not only serve as different plant communities with ecological effects but also bring a lot of management significance and economic benefits.