Data: How to Read It How to Use It

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Data How to Read It How to Use It
Data How to Read It How to Use It
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2
Look at the GIS maps of Petersham in
Massachusetts in 1830 and in 1999. What is the
most significant change that occurred?
3
Based on these pictures found at
http//harvardforest.fas.harvard.edu/museum/landsc
ape.html and the previous GIS maps,
summarize the changes that have occurred in
Massachusetts?
Pre Settlement , 1700
Settler clears homestead
Forest clearing for agriculture, 1830
Farm abandonment
White Pine forest on abandoned farmland
Hardwoods succeed White Pine
Forest growth
Today
4
Here is a series of pictures displaying central
Arizonas land use over time. Describe what
happened to agriculture and desert land as people
moved in.
Regional land use, 1912 Regional land
use, 1934 Regional land use, 1955
Regional land use, 1975 Regional land
use, 1995 Regional land use, 2000
5
Looking at the previous maps of Arizona, why do
you think the natural land (desert) was
being taken away in Arizona and the natural land
(forest) is continuing to grow in
Massachusetts?