Field Trip Sites: (Field Report due next Wednesday?) Tuesday: Upland = Site A Lowland = Site B. Report: Introduction (briefly summarize methods used), Results (include N data in kg/ha, soil series and map accuracy, productivity, land use)
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Field Trip Sites: (Field Report due next Wednesday?)
Tuesday: Upland = Site A
Lowland = Site B
Report: Introduction (briefly summarize methods used), Results (include N data in kg/ha, soil series and map accuracy, productivity, land use)
Soils: think about productivity, appropriate uses, inappropriate
uses, sensitive areas, water quality….
Microclimate: any effects with land use changes?
Lowland area downslope
A soil association common in the Puget Sound area showing soil type relative to different glacial deposits
Bulk Density = dry soil mass/volume
Mineral Soil: core volume of 2 rings = 137.4 cm3 (πr2 h=vol)
Organic horizons: average depth of 4 measurments x 18 cm x 11.5 cm
(area of book)
bulk density = dry weight / volume
Total N using a CHN analyzer
dissolved ammonium and nitrate in solution using an Autoanalyzer
Concentration of Total N in Soil
Site A (DF): 42.6 mm
Site B (RA): 54.5 mm
Samples collected May 4
PPT: NH4 = .01 mg L-1
NO3 = .04 mg L-1
Solution Ammonium and Nitrate
Period of Record Monthly Climate Summary
Period of Record : 2/1/1929 to 12/31/2007
Percent of possible observations for period of record.Max. Temp.: 97.6% Min. Temp.: 97.5% Precipitation: 97.7% Snowfall: 97.4% Snow Depth: 96.1% Check Station Metadata or Metadata graphics for more detail about data completeness.
Western Regional Climate Center, http://www.wrcc.dri.edu/summary/climsmwa.html
~ 2 pages
Include: Introduction with brief review of methods
Paragraph about soils found on site vs. soils map
Calculate TOTAL SOIL N Content for the 2 soils of your lab day
Be sure to briefly show your calculations!
Paragraph on productivity of the 2 soils (be sure to consider the N content as well as other factors)
(You will use some other N data later in the water module)