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University of Colorado at Boulder
Schlesinger, W. H.: BIOGEOCHEMISTRY: An Analysis of Global Change
This course is a quantitative investigation of the physical, chemical, and biological processes that determine the hydrology and hydrochemistry of headwater catchments (watersheds). A watershed is a natural unit of land from which the surface, subsurface and ground water runoff drain to a common outlet. In this course, the emphasis in on the movement and storage of water, nutrients, and solutes on and in the context of a natural land unit, the watershed. My intent with this course is to provide a process-level understanding of watershed biogeochemistry such that students will be able to understand the consequences of our planned and inadvertent human activities on water flow and quality at the catchment scale.
This course builds on and complements existing courses in Geography, particularly Introduction to Hydrology (Geography 3511). Specific topics include: hydrograph separation, isotopic and geochemical hydrologic tracers, water quality, pollution, geochemistry, nutrient cycling, field experiments, and simulation modeling. These processes will be applied to a range of geographic regions, emphasizing headwater catchments in montane environments.
The emphasis of the course will be primarily on material presented in class. Regular attendance is therefore suggested, since much of the material presented in class is not covered in the text. Exams will emphasize understanding, quantitative analysis, and to a large extent the ability to apply knowledge in a new context. The exam format will consist of quantitative problems, short answer, and essay questions.
| Tests | 0% | There are no tests |
|---|---|---|
| Paper | 40% |
The paper will be due at the normal
final times for this class. Instructions on writing your paper |
| Presentation | 20% | Leading discussion on topic or paper in class |
| Homework | 20% | There will be several homework assignments |
| Participation | 20% | Participation in class discussions |
Date | Topics |
|---|---|
| 23 January | Case studies: Kesterson reservoir, acid rain, cyanide-leach mines. |
| 30 January | Chemical reactions in water; carbonate equilibrium Mark's ppt |
| 6 February | Review of hydrologic processes Discuss Garrels and Mackenszie, 1967 Williams et al., 1993 Kate, Ken, Kendra, and Corey's talk |
| 13 February | Isotopes in Hydrology Nice overview SARHA isotope notes Kendall notes; very complete |
| 20 February | 2- and 3-component mixing analysis Critical Loads powerpoint Modeling critical loads at NWT Sueker et al., 2000 Burns 2002 Feng et al. Taylor et al. Taylor_mixingmodels Hill and McFadden Abood and Roberts |
| 27 February | End-Member Mixing Analysis (EMMA) Burns et al., 2001 Liu et al., 2004 rock glaciers Leadville Matt and Nick |
| 2 March | Strontium/calcite/dust White et al., 1999 Clow et al., 1997 Ley et al., 2004 Corey, Nick, and Chris |
| 9 March | Climate; Nitrogen High Country News Article Properties of Nitrogen Nitrogen Cycle |
| 19 March | Nitrogen cycling and N-saturation Aber et al., 1989, Nsat paper Stoddard, 1994 Williams et al., 1995 Williams et al., 1996 |
| 20 March | Nitrogen Isotopes Kendall et al., 2002 Campbell et al., 2002 Michaelski et al., 2002 Williams et al, in prep |
| 23-25 March | Spring Break |
| 3 April | Individual meetings about papers |
| 10 April | Nitrogen Isotopes |
| 17 April | Lithogenic N, Golf courses rock_nitrogen golf_courses phosphorus |
| 24 April | Mercury and POPs Blais et al. (POPs) mercury in mountains |
| 27 April | Modeling: MMS, CENTURY, PnET |
| 29 April | FINAL: in class |
| 8 May (Saturday) | Paper due |