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Forests, Mining Carbon from the Air
model1
 ASL | Ask your teacher if you will be using the Excel version or "CO2fix". This is the model made by Wageningen University and Research Center , or the Excel version. |
ASL | If you are using "CO2fix", open the model named "WUR-ex1". When "WUR-ex1" opens, you see the carbon stock table. This is the run for the forest plot. Each row shows one year's data. |
ASL | How many years does this run model the forest? What parts of the tree does the model monitor? What is the total dry mass of the trees when the simulation starts? What is the total mass of the trees at the end of the simulation? |
ASL | Copy the Biomass dry weight column into an Excel spreadsheet. Graph the column to see how the mass changes over time. |
ASL | . What percentage of the Biomass is carbon? |
ASL | Find the column that shows the total carbon in the soil. Copy this column to your spreadsheet and graph it. |
ASL | . Which year has the most carbon in the soil? Explain why the soils carbon dips then increases then decreases again. |
ASL | Explore the data on your own to answer these questions. |
ASL | . Which year has the largest amount of carbon in the forest? How much carbon is in the forest this year? |
ASL | . Which year is the most carbon being sequestered? |
ASL | . Which year does the forest start producing more CO2 than it is sequestering? |
ASL | . After the year when the largest amount of carbon is in the forest what is the relationship between the forest and the atmosphere? Is the forest removing or adding CO2 to the atmosphere. The trees are getting bigger and older why doesn't the forest contain more CO2? |
ASL | . Which age range of forest would we need to help balance the CO2 that we are adding to the atmosphere? |
ASL | . What implications would this have on our national forest policy if we want the forests to help deal with our CO2 responsibilities. |
ASL | . What are the product values in the model? |
ASL | (all 0) this forest isn't harvested. It is managed like a wilderness area. They leave it alone. Lumber is removed from most of our forests. This model allows us to simulate harvesting of products from the forest. |
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Developed by
The Shodor Education Foundation, Inc.
Copyright © 2002 by The Shodor Education Foundation, Inc
This project is supported, in part, by the National Science Foundation
Opinions expressed are those of the authors and not necessarily
those of the National Science Foundation.
