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Long-Term Soil Productivity Study:

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  (Treatments)

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  1. R1 - Priest River
    • Pre-Harvest
    • Immediate Post-Harvest
    • 3 Year Post-Harvest
    • 5 Year Post-Harvest
  2. R4 - Council Ranger District

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Microbial Processes > Long-Term Soil Productivity (LTSP) Study > Results to Date > Council Ranger District LTSP (Region 4) Pre-Harvest Soil Measurements

R4 Pre-Harvest % Soil Organic Matter

Graph showing pre-harvest % organic matter before implementing 9 treatments - C0OM0: 59.843743092117%; C0OM1: 65.1931952565937%; C0OM2: 61.5276984696957%; C1OM0: 63.1640761679703%; C1OM1: 55.4903926221303%; C1OM2: 60.2513165310433%; C2OM0: 53.7084094502188%; C2OM1: 57.4670295900832%; C2OM2: 63.2838438994189%


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R4 Pre-Harvest Soil pH

Graph showing soil pH before implementing 9 treatments - C0OM0: 6.38132075471698; C0OM1: 6.54645833333334; C0OM2: 6.20285714285714; C1OM0: 6.53260869565217; C1OM1: 6.47222222222222; C1OM2: 6.33584905660377; C2OM0: 6.44425531914893; C2OM1: 6.42875; C2OM2: 6.27361702127659


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R4 Pre-Harvest Mineral % Soil Carbon and Nitrogen

Graph showing % soil carbon and nitrogen before implementing 9 treatments - C0OM0: carbon = 16.1548275862069%, nitrogen = 0.533327586206897%; C0OM1: carbon = 16.4056140350877%, nitrogen = 0.504666666666667%; C0OM2: carbon = 14.598%, nitrogen = 0.440436363636364%; C1OM0: carbon = 17.26%, nitrogen = 0.531559322033898%; C1OM1: carbon = 16.5316923076923%, nitrogen = 0.452107692307692%; C1OM2: carbon = 16.6938983050847%, nitrogen = 0.49028813559322%; C2OM0: carbon = 18.005%, nitrogen = 0.515448275862069%; C2OM1: carbon = 16.7465454545455%, nitrogen = 0.477818181818182%; C2OM2: carbon = 15.7762264150943%, nitrogen = 0.486396226415094%


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R4 Pre-Harvest Soil Cations

Graph showing soil cations before implementing 9 treatments - C0OM0: MG = 430 mg/kg, CA = 5494.82142857143 mg/kg, K = 2485.10638297872 mg/kg; C0OM1: MG = 647.608695652174 mg/kg, CA = 6108.91304347826 mg/kg, K = 2510.21739130435 mg/kg; C0OM2: MG = 496.818181818182 mg/kg, CA = 6175.68181818182 mg/kg, K = 2800.32258064516 mg/kg; C1OM0: MG = 433.333333333333 mg/kg, CA = 6766.16666666667 mg/kg, K = 2924.66666666667 mg/kg; C1OM1: MG = 374.758064516129 mg/kg, CA = 5614.83333333333 mg/kg, K = 3261.33333333333 mg/kg; C1OM2: MG = 491.491228070175 mg/kg, CA = 6646.14035087719 mg/kg, K = 3122.39130434783 mg/kg; C2OM0: MG = 539.259259259259 mg/kg, CA = 6313.6 mg/kg, K = 2750.92592592593 mg/kg; C2OM1: MG = 526.279069767442 mg/kg, CA = 4310.46511627907 mg/kg, K = 2562.09302325581 mg/kg; C2OM2: MG = 708.181818181818 mg/kg, CA = 7123.5 mg/kg, K = 2495 mg/kg


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Pre-Harvest Bulk Density Summary

Graph showing pre-harvest bulk density data contained in table below


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R4 Pre-Harvest Bulk Density Summary Data
Treatment Minimum Bulk Density
(g per cm3)		 Maximum Bulk Density
(g per cm3)		 Median Bulk Density
(g per cm3)		 Average Bulk Density
(g per cm3)
C0/OM0 0.40 1.52 0.96 0.97
C0/OM1 0.58 1.62 0.94 0.94
C0/OM2 0.52 1.43 0.96 0.97
C1/OM0 0.40 1.51 0.92 0.94
C1/OM1 0.50 1.45 0.99 1.00
C1/OM2 0.54 1.54 0.97 0.99
C2/OM0 0.62 1.50 0.95 0.97
C2/OM1 0.64 1.52 1.04 1.02
C2/OM2 0.52 1.59 1.06 1.07


R4 Pre-Harvest Soil Water

Graph showing soil water before implementing treatments - Soil depth of 0-2 inches: Field Capacity = 42.0718895718854%, Permanent Wilting Point = 26.0756573119544%; Soil depth of 4-6 inches: Field Capacity = 33.5810327930977%, Permanent Wilting Point = 18.3305646136354%; Soil depth of 8-10 inches: Field Capacity = 28.8123557159115%, Permanent Wilting Point = 18.0936262465173%;


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Council Ranger District LTSP (R4) Pre-Harvest Downed Woody Debris Measurements >