Tree Fund header image

Effects of different sidewalk designs on soil characteristics and on the growth and physiology of shade tree species

2013 | Dr. Alessio Fini, University of Florence
The project is aimed at comparing four different profile designs for parkings lots, sidewalk, and other paved areas. Treatments compared are: A) impervious pavement (asphalt on concrete sub-base); B) pervious (curb on crushed stone sub-base); C) permeable (resin bound pavement on crushed stone sub-base); D) unpaved. In 2011, an experimental plot with these treatments (and 6 replicate) was built in Vertemate con Minoprio (CO, Italy). Two urban tree species (Fraxinus ornus and Celtis australis) were planted in a 1 x 1 m planting pit, in the differently paved subplots in spring 2012.
The project is then aimed at evaluating the effects of different profile designs and soil cover on:
• Soil temperature, which will be measured at 25-30 cm below grade, where most of roots are located
• Soil moisture (v/v), which will be measured at 25 cm (5 cm below the sub-base) and at 45 cm below grade, in order to describe how moisture varies at different depths within the rootzone
• Soil O2 content and CO2 efflux from soil
• Leaf gas exchange (photosynthesis, transpiration, water use efficiency), water relations (pre-dawn water potential) and growth of trees planted in pits surrounded by the different materials
• Air temperature and humidity in the different plots

Categories 2013, Grant Archive, Jack Kimmel International Grant | Tags: | Posted on March 27, 2014

Social Networks: RSS Facebook Twitter Google del.icio.us Stumble Upon Digg Reddit

Leave a Reply

Your email address will not be published. Required fields are marked *

*


5 − two =

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Current day month ye@r *

Thank You

The 2014 STIHL Tour des Trees and Raise Your Hand for Research Auctions were outstanding successes! We appreciate all your support!

Trees are not an amenity that can be neglected when the economy gets tight. This is a way to provide for their care into the future, and to make sure that the safety programs that protect our workforce continue to evolve. I didn’t make this decision [to become a Heritage Oak Society member] because I was asked; I did it because it’s important. We all have a role to play in planning for the future of our trees.

close window