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Nitrogen biogeochemistry of headwater catchments underlain by discontinuous permafrost

In this TIEE data set, students answer the question of what influences flux of nitrogen from catchments underlain by discontinuous permafrost.

Students work with a large dataset describing nitrogen dynamics in the Caribou-Poker Creeks Research Watersheds, small watersheds in the boreal forest that are underlain with various extents of permafrost cover. Students use spreadsheet and graphics software to investigate responses of N cycling to permafrost, seasonal patterns, and inter-annual variation by 1) making observations concerning long (inter-annual) and short-term (seasonal) patterns in nutrient concentrations in streams, 2) hypothesizing about physical and biological conditions influencing nitrogen chemistry, and 3) testing predictions using graphical analyses.
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Format
Primary or BEN resource type
Discipline Specific Core Concepts
Life science discipline (subject)
Keywords Catchment biogeochemistry, boreal forest, discontinuous permafrost, nitrogen (N)
Audience
Intended End User Role
Language
Educational Language
Pedagogical Use Description Skills used include drawing observations from graphical data, hypothesizing, calculations and preparation of figures from large datasets, graphical analyses, facilitated group learning, and written presentation of results. Student-active approaches include investigating causal relationships, calculations, preparation of graphs, and interpretation of data. Communication activities include think-pair-share, class discussion, and presentation of findings with the class or in written reports. Assessable outcomes include
formative assessment via small-group and class discussion; display-quality figures; written and verbal presentation of observations, analyses, and interpretation.
Primary Author Controlled Name
Primary Author Affiliation Institute of Arctic Biology, University of Alaska, Fairbanks AK
Primary Author email tharms@ualaska.edu
Secondary Author Name(s) Samuel T. Norlin, Jeremy B. Jones
Secondary Author Affiliation(s) Geophysical Institute, University of Alaska, Fairbanks AK

Institute of Arctic Biology, University of Alaska, Fairbanks AK
Rights Copyright 2011 by Tamara K. Harms, Samuel T. Norlin, Jeremy B. Jones, and the Ecological Society of America
Date Of Record Submission 2011-08-29

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