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?
A B
Site A: upland area
Site B: Lowland area downslope
Site: Lowland Site: Upland 54.5 mm
A B
A soil association common in the Puget Sound area showing soil type relative to different glacial deposits Indianola Kitsap Ragnar
Bulk Density Calculations: Bulk Density = dry soil mass/volume Mineral Soil: core volume of 2 rings = cm 3 (π r 2 h=vol) Organic horizons: average depth of 4 measurments x 18 cm x 11.5 cm (area of book) = volume bulk density = dry weight / volume
Site A HORIZONS UPLAND Depth (cm) and BD g/cm 3 Site B HORIZONS LOWLAND Depth (cm) and BD g/cm 3 Horizons Cont. Depth and BD Cont. O 11 – 0 cm.02 g/cm 3 Oi 1.5 – 0cm.01 g/cm 3 Cg4 43 – A 0 – A1 0 – Bs1 7 – A Bs2 22 – Cg1 21 – C 66 – Cg2 27 – Cg3 35 – Soil Horizons, depths and bulk densities
Chemical analysis: Total N using a CHN analyzer and dissolved ammonium and nitrate in solution using an Autoanalyzer
Chemical Analyses: Concentration of Total N in Soil Site A UPLAND mg N /g soil Site B LOWLAND mg N /g soil O15.0Oi18.0Cg40.2 A5.0A15.2 Bs10.9A24.9 Bs20.8Cg11.8 C0.3Cg20.1 Cg30.6
Site A HORIZONS UPLAND Depth (cm) and BD g/cm 3 Site B HORIZONS LOWLAND Depth (cm) and BD g/cm 3 Horizons Cont. Depth and BD Cont. O 11 – 0 cm.02 g/cm 3 Oi 1.5 – 0cm.01 g/cm 3 Cg4 43 – A 0 – A1 0 – Bs1 7 – A Bs2 22 – Cg1 21 – C 66 – Cg2 27 – Cg3 35 – Soil Horizons, depths and bulk densities
Site A HORIZONS UPLAND Depth (cm) and BD g/cm 3 Site B HORIZONS LOWLAND Depth (cm) and BD g/cm 3 Horizons Cont. Depth and BD Cont. O 11 – 0 cm.02 g/cm 3 Oi 1.5 – 0cm.01 g/cm 3 Cg4 43 – A 0 – A1 0 – Bs1 7 – A Bs2 22 – Cg1 21 – C 66 – Cg2 27 – Cg3 35 – Soil Horizons, depths and bulk densities
Throughfall Data: Site A (DF):42.6 mm Site B (RA): 54.5 mm
Chemical Analyses: Solution Ammonium and Nitrate Samplemg NH 4 + / Lmg NO 3 - / LSamplemg NH 4 + / Lmg NO 3 - / L Site A, upl. throughfall Site B, low. throughfall Site B groundwater Site B Streamwater Collectors installed Apr 6 Samples collected May 4 PPT: NH 4 =.01 mg L -1 NO 3 =.04 mg L -1
MONROE, WASHINGTON (455525) Period of Record Monthly Climate Summary Period of Record : 2/1/1929 to 12/31/2007 JanFebMarAprMayJunJulAugSepOctNovDec Annual Average Max. Temperature (F) Average Min. Temperature (F) Average Total Precipitation (in.) Average Total SnowFall (in.) Average Snow Depth (in.) 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.Station Metadata Metadata graphics Western Regional Climate Center,
Soils and Microclimate Report ~ 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)