Cutting Edge > Geochemistry > Teaching Activities > Nitrous Oxide Transport and Transformation

Nitrous Oxide Transport and Transformation

Pierre-Andre Jacinthe
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Indiana University Purdue University Indianapolis
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Summary

In this laboratory exercise, students gain experience manipulating gas concentration data, determining soil properties related to transport of gases through porous medium like soils. This exercise is appropriate for soil physics and biogeochemistry courses.

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Context

Audience

I plan to use this activity in a senior / graduate course in Biogeochemistry.

Skills and concepts that students must have mastered

Skills

How the activity is situated in the course

- Part of a sequence to demonstrate link between soil physical conditions and biological processes

Goals

Content/concepts goals for this activity

Higher order thinking skills goals for this activity

Other skills goals for this activity

Description of the activity/assignment

In this laboratory exercise, students add nitrous oxide to pairs of undisturbed soil cores. One core in each set of cores is treated with acetylene to block nitrous oxide transformation. The bulk of this exercise involves, injection and drawing of air samples. Students gain experience manipulating gas concentration data, determining soil properties related to transport of gases through porous medium like soils. This exercise is appropriate for soil physics and biogeochemistry courses.

Determining whether students have met the goals

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