The above figure indicates CO2 flux in a farmland system over one growing season. The researchers monitored CO2 flux for corn (NEE-maize), soil near the corn (SR- maize), and soil in a barren field (SR-barefield). Based on this figure, which of the following statements is TRUE? None of these statements is true The corn (NEE-maize) is a carbon sink for part (probably the peak) of the growing season The corn (NEE-maize) is the biggest carbon source Both soils (SR-maize and SR-barefield) are carbon sinks over the entire growing season

Biology 2e
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ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter46: Ecosystems
Section: Chapter Questions
Problem 1VCQ: Figure 46.8 Why do you think the value for gross productivity of the primary producers is the same...
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The above figure indicates CO2 flux in a farmland system over one growing season.
The researchers monitored CO, flux for corn (NEE-maize), soil near the corn (SR-
maize), and soil in a barren field (SR-barefield). Based on this figure, which of the
following statements is TRUE?
O None of these statements is true
O The corn (NEE-maize) is a carbon sink for part (probably the peak) of the growing
season
The corn (NEE-maize) is the biggest carbon source
Both soils (SR-maize and SR-barefield) are carbon sinks over the entire growing
season
Transcribed Image Text:The above figure indicates CO2 flux in a farmland system over one growing season. The researchers monitored CO, flux for corn (NEE-maize), soil near the corn (SR- maize), and soil in a barren field (SR-barefield). Based on this figure, which of the following statements is TRUE? O None of these statements is true O The corn (NEE-maize) is a carbon sink for part (probably the peak) of the growing season The corn (NEE-maize) is the biggest carbon source Both soils (SR-maize and SR-barefield) are carbon sinks over the entire growing season
4
0.
-2
-4
NEE-maize
ed
SR-maize
-6
SR-barefield
-8
153
173
193
213
233
253
273
Day of the year
Carbon exchange (g C m² d')
Transcribed Image Text:4 0. -2 -4 NEE-maize ed SR-maize -6 SR-barefield -8 153 173 193 213 233 253 273 Day of the year Carbon exchange (g C m² d')
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