Nutrient Values

The following figures display the summaries of numeric distributions from 200 observations per nutrient variable based upon results from Ward Lab.

Nitrogen

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   390.0   968.5  1242.0  1381.1  1587.8  4512.0

Carbon

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   0.540   1.371   1.698   2.036   2.248   6.297

Nitrate

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   0.100   0.400   0.700   1.179   1.300   9.100

Ammonium N

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   0.990   2.688   3.505   4.090   4.532  21.990

Phosphorus

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   1.300   3.000   4.200   5.359   5.900  23.000

Soil Nutrient Pivot Table

The average nutrient values in relation to fire severity for both early (May) and late (July) season.

Fire_Severity Month Avg_Nitrogen_ppm Avg_Carbon_pct Avg_Nitrate_ppm Avg_Nitratelbs Avg_P_ppm Avg_AmmoniumN_pp Avg_Ammoniumlbs
High July 1482.7941 2.136029 2.0941176 4.941177 7.985294 4.943529 11.941176
High May 1391.0606 1.788879 0.9939394 2.303030 6.272727 4.607273 11.090909
Low July 930.4545 1.976909 1.3818182 3.363636 4.100000 2.157273 5.181818
Low May 839.1818 1.958182 0.8727273 2.090909 3.181818 3.764546 9.000000
Medium July 1327.3333 1.990704 0.8555556 2.148148 4.907407 3.057778 7.296296
Medium May 1223.8214 1.811893 1.1500000 2.785714 4.114286 4.272143 10.214286
Unburned July 1622.8235 2.295118 0.7882353 1.764706 3.117647 3.724118 9.058824
Unburned May 1488.9412 2.257588 0.5529412 1.352941 3.864706 4.165882 10.058824
Very high July 1566.2727 2.273364 1.8363636 4.363636 5.472727 3.830909 9.272727
Very high May 1836.1818 2.307909 0.7909091 1.818182 7.872727 4.927273 11.818182

Nutrient Distributions

Given the number of observations for each nutrient value, these distributions indicate some outliers to be identified. However the frequency outside the distribution curve appears to be relatively low.

Notable outliers/outside normal distribution

Nitrogen : May (Plots 4, 6, 50, 51) | July (Plots 6, 50, 95)

Carbon: May (Plots 4, 6, 18, 50) | July (Plots 6, 40, 42, 50)

Nitrate: May (Plot 72) | July (Plots 16, 29, 71, 74, 81,)

Phosphorus: May (Plots 72, 74) | July (Plots 43, 60, 61)

Ammonium: May (Plot 4) | July (Plots 60, 72, 73, 86)

Box plots reflecting the averages of Nitrogen (pp) and Carbon (%) to fire severity

Box plots for Nitrate, Ammonium and Phosphorus vs Fire severity

Scatterplot comparing N to C and separated by month

Soil Nutrient mean values vs Fire severity

Forage Data Summary

Forage Quality (Averages) Taken from Dataframe “ForageAmended”

129 Total observations

Focused on Protein, Fiber, TDN and Net Energy

An overview of nutritional content in relation to Month, Fire and Ecological setting

Fire Month Ecosite Plot Avg_Moisture Avg_DM Avg_ProteinAR Avg_ProteinDW Avg_ADFAR Avg_ADFDW Avg_TNDAR
Burned August sandy 901 6.230000 93.77000 5.430000 5.790000 40.60000 43.30000 49.90000
Burned August shallow 914 6.350000 93.65000 4.320000 4.610000 43.00000 45.90000 47.00000
Burned August silty 905 6.075000 93.92500 4.612500 4.910000 47.65000 50.72500 42.02500
Burned August silty 909 6.510000 93.49000 6.630000 7.090000 45.20000 48.30000 44.40000
Burned August silty 903907913 6.180000 93.82000 5.390000 5.740000 41.30000 44.00000 49.20000
Burned August steep 906 6.570000 93.43000 5.230000 5.595000 47.30000 50.60000 41.90000
Burned July sandy 901 7.050000 92.95000 5.873333 6.316667 39.36667 42.36667 50.43333
Burned July shallow 914 7.170000 92.83000 6.740000 7.260000 39.70000 42.80000 49.90000
Burned July silty 903 6.610000 93.39000 6.420000 6.875000 38.35000 41.05000 52.10000
Burned July silty 905 6.617500 93.38250 5.615000 6.015000 42.07500 45.07500 47.75000
Burned July silty 907 6.500000 93.50000 6.840000 7.320000 38.50000 41.20000 52.00000
Burned July silty 909 6.570000 93.43000 5.290000 5.660000 47.00000 50.30000 42.20000
Burned July steep 906 7.376000 92.62400 8.874000 9.562000 34.56000 37.30000 55.60000
Burned July steep 915 6.665000 93.33500 5.885000 6.305000 38.15000 40.85000 52.25000
Burned July steep 917 6.620000 93.38000 7.920000 8.480000 37.10000 39.70000 53.50000
Burned June sandy 901 7.015000 92.98500 8.350000 8.980000 33.95000 36.50000 56.65000
Burned June shallow 914 7.240000 92.76000 10.400000 11.200000 33.70000 36.30000 56.80000
Burned June silty 903 7.190000 92.81000 14.200000 15.300000 33.80000 36.40000 56.60000
Burned June silty 905 7.130000 92.87000 9.054000 9.746000 36.74000 39.56000 53.32000
Burned June silty 907 7.820000 92.18000 9.930000 10.800000 32.90000 35.70000 57.00000
Burned June silty 909 7.057500 92.94250 7.362500 7.920000 39.57500 42.57500 50.17500
Burned June silty 913 7.370000 92.63000 8.450000 9.120000 33.20000 35.80000 57.20000
Burned June steep 906 7.548000 92.45200 8.838000 9.562000 34.50000 37.30000 55.46000
Burned June steep 915 6.845000 93.15500 8.695000 9.335000 36.85000 39.55000 53.50000
Burned May shallow 914 7.070000 92.93000 12.800000 13.800000 34.10000 36.70000 56.40000
Burned May silty 903 7.465000 92.53500 16.500000 17.850000 29.50000 31.85000 61.30000
Burned May silty 905 7.730000 92.27000 13.100000 14.150000 32.15000 34.85000 57.90000
Burned May silty 907 7.330000 92.67000 10.400000 11.200000 32.90000 35.50000 57.50000
Burned May silty 909 6.750000 93.25000 7.800000 8.360000 41.70000 44.70000 48.10000
Burned May silty 913 7.130000 92.87000 13.800000 14.800000 30.40000 32.70000 60.60000
Burned May steep 906 7.860000 92.14000 13.700000 14.900000 35.00000 38.00000 54.50000
Burned May steep 915 7.240000 92.76000 11.700000 12.600000 34.10000 36.80000 56.20000
Burned September shallow 914 6.410000 93.59000 5.970000 6.380000 44.00000 47.00000 45.80000
Burned September silty 905 6.890000 93.11000 6.220000 6.680000 43.55000 46.80000 45.75000
Burned September silty 909 6.850000 93.15000 8.330000 8.940000 44.10000 47.30000 45.30000
Burned September steep 906 7.065000 92.93500 5.870000 6.315000 46.70000 50.25000 42.05000
Unburned August sandy 910 6.010000 93.99000 5.980000 6.360000 50.80000 54.00000 38.50000
Unburned August shallow 912 6.205000 93.79500 4.155000 4.430000 48.05000 51.25000 41.35000
Unburned August silty 904 6.016667 93.98333 5.126667 5.453333 42.46667 45.16667 47.96667
Unburned August silty 918 6.105000 93.89500 5.280000 5.625000 44.90000 47.80000 45.10000
Unburned August steep 908 6.370000 93.63000 5.700000 6.090000 45.70000 48.80000 43.90000
Unburned August steep 916 6.390000 93.61000 6.290000 6.720000 41.65000 44.45000 48.55000
Unburned July sandy 902 6.995000 93.00500 6.680000 7.180000 38.15000 41.05000 51.85000
Unburned July sandy 910 6.447500 93.55250 5.235000 5.595000 45.57500 48.72500 43.97500
Unburned July shallow 911 6.370000 93.63000 5.290000 5.650000 44.30000 47.30000 45.50000
Unburned July shallow 912 6.565000 93.43500 5.765000 6.170000 42.20000 45.15000 47.70000
Unburned July silty 904 6.397500 93.60250 5.162500 5.515000 43.50000 46.47500 46.37500
Unburned July silty 918 6.393333 93.60667 6.000000 6.410000 42.23333 45.10000 47.83333
Unburned July steep 908 6.455000 93.54500 4.820000 5.150000 44.30000 47.35000 45.50000
Unburned July steep 916 6.865000 93.13500 5.350000 5.745000 44.10000 47.35000 45.20000
Unburned June sandy 902 7.165000 92.83500 8.420000 9.060000 35.70000 38.45000 54.50000
Unburned June sandy 910 6.880000 93.12000 5.730000 6.155000 41.10000 44.10000 48.70000
Unburned June shallow 911 6.810000 93.19000 5.980000 6.420000 40.30000 43.20000 49.70000
Unburned June silty 904 6.600000 93.40000 6.670000 7.140000 42.60000 45.60000 47.30000
Unburned June silty 918 6.260000 93.74000 4.920000 5.250000 43.40000 46.30000 46.70000
Unburned June steep 908 7.115000 92.88500 7.730000 8.330000 36.95000 39.80000 53.10000
Unburned May sandy 902 7.280000 92.72000 15.200000 16.400000 27.70000 29.90000 63.50000
Unburned May sandy 910 6.735000 93.26500 6.575000 7.050000 43.15000 46.25000 46.45000
Unburned May shallow 912 6.930000 93.07000 8.130000 8.740000 40.60000 43.60000 49.10000
Unburned May silty 904 6.845000 93.15500 8.970000 9.625000 37.65000 40.40000 52.60000
Unburned May silty 918 7.070000 92.93000 7.610000 8.190000 36.46667 39.20000 53.73333
Unburned May steep 908 7.060000 92.94000 9.050000 9.740000 38.50000 41.40000 51.40000
Unburned May steep 916 7.170000 92.83000 8.410000 9.060000 38.30000 41.20000 51.60000
Unburned September sandy 910 6.655000 93.34500 6.520000 6.985000 48.45000 51.90000 40.50000
Unburned September shallow 911 6.530000 93.47000 6.800000 7.280000 43.70000 46.80000 46.00000
Unburned September shallow 912 6.540000 93.46000 5.210000 5.570000 44.60000 47.70000 45.00000
Unburned September silty 904 6.720000 93.28000 6.000000 6.430000 43.50000 46.60000 46.10000
Unburned September silty 918 7.530000 92.47000 8.910000 9.640000 34.90000 37.70000 55.10000
Unburned September steep 908 6.680000 93.32000 6.370000 6.820000 43.30000 46.40000 46.30000
Unburned September steep 916 6.390000 93.61000 6.170000 6.590000 45.10000 48.15000 44.60000

Forage Quality Distributions

Moisture Content (few outliers observed)

Distributions seem typical of early vs late seasons

Dry Matter

Protein

As Received vs Dry Weight comparison, No significant differences in distribution patterns

Notable outliers (May: Plots 903, 904) (June Plot 903)

Fiber (acid detergent)

May and June has a somewhat uniform distribution/no outliers to note

September outlier Plot 918

Total Digestible Nutrients

May and June has a somewhat uniform distribution/no outliers to note

September outlier Plot 918

Net Energy Distributions

Lactation ~ September outlier Plot 918

Maintenance ~ September Plot 918 outlier

Gain ~ September Plot 918 outlier

Forage Quality measurements (mean+-SE)

By burn treatment (“Burned”, “Unburned”), ecosites, and month. Suspect that some of the distributions (ex. May/Unburned) and the overall sample size could be affecting this, given the amount of variables used

When Ecosite is removed