Undisturbed Deforested Recovering 90 - -Watershed 2 Watershed 6 60 30 - 1963-64 1966-67 1969-70 1972-73 Year Annual Net Export (Kg/ha) Compled by the athorsusing data fom EH. Jomann

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Question

Consider the accompanying graph, which compares the
losses of calcium from the experimental and control sites
in the Hubbard Brook Experimental Forest (Core Case
Study). Note that this figure is very similar to Figure 2.5,
which compares loss of nitrates from the two sites. After
studying this graph, answer the following question

Does this graph support the hypothesis that cutting
the trees from a forested area causes the area to lose
nutrients more quickly than leaving the trees in
place? Explain.

Undisturbed
Deforested
Recovering
90 -
-Watershed 2
Watershed 6
60
30 -
1963-64
1966-67
1969-70
1972-73
Year
Annual Net Export (Kg/ha)
Compled by the athorsusing data fom EH. Jomann
Transcribed Image Text:Undisturbed Deforested Recovering 90 - -Watershed 2 Watershed 6 60 30 - 1963-64 1966-67 1969-70 1972-73 Year Annual Net Export (Kg/ha) Compled by the athorsusing data fom EH. Jomann
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