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Ecological Processes
Figure 3 | Ecological Processes

Figure 3

From: Denitrification from nitrogen-fixing biologically crusted soils in a cool desert environment, southeast Utah, USA

Figure 3

Extractable soil NO 3 -and NH 4 +in light and dark biocrusts that experienced four levels of simulated rainfall events at different temperatures. (A) Light crust, soil NO3-, (B) dark crust, soil NO3-, (C) light crust, soil NH4+, and (D) dark crust, soil NH4+. Values are means ± 1 SE. There was a significant biocrust type × water addition and temperature × water addition effect on soil NO3-. There was a significant effect of biocrust type and temperature × water addition interaction on soil NH4+.

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