Tuesday, December 15, 2009

Yay me!  Last night I completed the last paragraph for the results.
I wanted to know if N2O production, a gas product of several N processes both biotically and abiotically mediated was different by upland hillslope position; summit, shoulder, backslope, footslope and toeslope and by landscape type; upland, lagg, alder and bog and by depth in the soil profile and by during the growing season versus after the growing season.
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So I made all of those comparisons in N2O production and soil physical and chemical properties that control and influence the production of N2O gas; pH, bulk density, SOC, soil total N, soil NH4+ and soil NO3-.
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The lab DEA treatments that I'm referring to are solutions added to soil samples and then incubated in the absence of oxygen to support denitrification.  The solutions are a control solution of only a very pure kind of water called "Type II" and then a mix of type II water with glucose (to simulate SOC) and then type II water and nitrate (NO3-, the stuff that gets turned into N2O gas) and then type II water + glucose+nitrate.
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1.  Soil chemistry A horizon upland hillslope positions

2. N2O production A horizon upland hillslope positions
a.  Comparison of N2O production by hillslope positions for each lab DEA treatment
b. Comparison of  N2O production by lab DEA treatment for each hillslope position
c. Comparison of N2O production by hillslope position for each sampling date; June and September 2008
3. Soil chemistry 10 cm below A horizon upland hillslope positions
4 N2O production 10 cm below A horizon upland hillslope positions
a.  Comparison of N2O production by hillslope positions for each lab DEA treatment
b. Comparison of  N2O production by lab DEA treatment for each hillslope position
c. Comparison of N2O production by soil depth for each hillslope position for each lab DEA treatment
5.  Soil chemistry A horizon upland, 0-25 cm lagg, 0-25 cm bog landscape types
6. N2O production A horizon upland, 0-25 cm lagg, 0-25 cm bog landscape tyoes
a.  Comparison of N2O production by landscape type for each lab DEA treatment
b. Comparison of  N2O production by lab DEA treatment for each landscape type
c. Comparison of N2O production by landscape type for each sampling date; June and September 2008 
7.  Soil chemistry 10 cm below A horizon upland, 25-50 cm lagg, 25-50 cm bog landscape types
6.  N2O production 10 cm below A horizon upland, 25-50 cm lagg, 25-50 cm bog  landscape types
a.  Comparison of N2O production by landscape type for each lab DEA treatment
b. Comparison of  N2O production by lab DEA treatment for each landscape type
c. Comparison of N2O by soil depth for each landscape type for each lab DEA treatment
8.  Soil chemistry 0-25 cm lagg, 0-25 cm alder, 0-25 cm bog landscape types
9.  N2O production by 0-25 cm lagg, 0-25 cm alder, 0-25 cm bog landscape types
a.  Comparison of N2O production by landscape type for each lab DEA treatment
b. Comparison of  N2O production by lab DEA treatment for each landscape type
c. Comparison of N2O production by hillslope position for each sampling date; June and September 2008 
10. Soil chemistry 25-50 cm lagg, 25-50 cm alder, 25-50 cm bog
11. N2O production by 25-50 cm lagg, 25-50 cm alder, 25-50 cm bog
a.  Comparison of N2O production by landscape type for each lab DEA treatment
b. Comparison of  N2O production by lab DEA treatment for each landscape type
c. Comparison of N2O production by depth for each landcape type for each lab DEA treatment
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Now I have to write the Discussion section where I explain why the results are what they are
There is another chapter where I sampled weekly N2O production out in the field for two years in each of those places and then the last sampling was after I amended the soil with a glucose+nitrate solution.

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