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Watershed 32
Physical Characteristics
STREAM: Cunningham Creek No.2
AREA: 41 ha
FIRST RECORD: 10/25/1941
NOTCH: 120 V-notch
ELEV. at WEIR: 920 m
MAX ELEVATION: 1236 m
MAX DISCHARGE: 1.35 m3sec-1km-2
ASPECT: ESE
Parameters from Swank and Crossly (1988)
Average Annual Nutrient (kg ha-1) and Water (cm) Budget:
|
|
Input
|
Output
|
Net Difference
|
|
Water
|
240
|
171
|
+69
|
|
NO3-N
|
3.77
|
0.04
|
+3.73
|
|
NH4-N
|
2.52
|
0.06
|
+2.46
|
|
PO4-P
|
0.11
|
0.02
|
+0.09
|
|
SO4-S
|
13.56
|
2.58
|
+10.98
|
|
Cl
|
8.35
|
8.48
|
-0.13
|
|
K
|
2.2
|
5.08
|
-2.88
|
|
Na
|
5.24
|
11.18
|
-5.94
|
|
Ca
|
4.25
|
8.25
|
-4.00
|
|
Mg
|
1.04
|
4.82
|
-3.78
|
|
SiO2
|
|
81.43
|
|
Volume-Weighted Mean Annual Concentrations (mg L-1) 1973-83:
NO-3-N = 0
NH+4-N = 0
PO3-4-N = 0
Cl- = 0.5
K+ = 0.3
Na+ = 0.65
Ca2+ = 0.48
Mg2+ = 0.28
SO2-4-S = 0.15
SiO2 = 4.77
Summary of Treatments
Control with mixed hardwoods stands remaining undisturbed since 1927. |