6/15:
Started processing these soils at about 1815 today -- rather late for samples taken about 1100, so might be a bit too dry.
Dry weights taken 21 hours later.Dry weights taken 21 hours later
Comparison sensor measurements read by eye from WWW plot.
6/21: 1200
In both cases, should have driven the corer further in (collar was flush, but apparently had compacted) -- use 0-2cm in both cases. a.soil also still had some litter and b.soil had some roots.
6/26: 1015
A bit drier than before. Mike Daniels helped. I think we got the whole 3cm in the top sample, though the soil may have been compacted in the process.
7/3: 1015/1025
A bit wetter due to some rain last night. Note that the wetness profile probably isn't uniform, though Qsoils did show an uptick. b 0-3cm probably was compacted too much (too dense). Scales have been moved into base trailer (from AABC lab).
Date | Position | Tare (g) (g) | Wet (g) (g) | Dry (g) (g) Moist (%) | rho (g/cm^3) | Moist (%) rho | Moist (g/cm^3%) | |||
|---|---|---|---|---|---|---|---|---|---|---|
6/15 | soil.a 0-3cm | 7.981 | 74.357 | 48.354 48.354 39.2 | 0.61 | 39.2 0.61 |
| |||
6/15 | soil.a 3-6cm | 7.940 | 97.473 | 72.210 72.210 | 28.2 | 0.97 | 2838.2 0 0. | 97 30 | ||
6/15 | soil.b 0-3cm | 7.945 | 90.836 | 67.464 67.464 | 28.2 | 0.90 | 2835.2 0.90 |
| ||
6/15 | soil.b 3-6cm | 7.991 | 98.365 | 78.623 | 1.06 | 29.7 | 23 | |||
6/21 | soil.a 0-3cm | 7.972 | 51.536 | 29.353 | 0.48 | 50.1 |
| |||
6/21 | soil.a 3-6cm | 7.940 | 102.324 | 68.270 | 0.91 | 51.3 | 27 | |||
6/21 | soil.b 0-3cm | 7.927 | 59.973 | 42.641 | 0.78 | 39.623 1 |
| |||
6/21 | soil.b 3-6cm | 7.987 | 74.350 | 55.189 | 0.71 | 28.8 | 25 | |||
6/26 | soil.a 0-3cm | 7.972 | 116.089 | 79.391 | 1.06 | 21.8 | 1.06 | .08 | 55.2 |
|
6/26 | soil.a 3-6cm | 7.939 | 120.337 | 92.536 | 1.27 | 41.8 | 34 | |||
6/26 | soil.b 0-3cm | 7.926 | 78.270 | 59.924 | 0.78 | 27.6 |
| |||
6/26 | soil.b 3-6cm | 7.984 | 103.500 | 84.423 | 1.15 | 28.7 | 21 | |||
7/3 | soila 0-3cm | 7.990 | 73.581 | 46.360 | 0.58 | 41.0 |
| |||
7/3 | soila 3-6cm | 7.945 | 96.626 | 69.548 | 0.93 | 40.8 | 34 | |||
7/3 | soilb 0-3cm | 7.913 | 105.195 | 77.396 | 1.05 | 41.8 |
| |||
7/3 | soilb 3-6cm | 7.986 | 103.252 | 83.068 | 1.13 | 30.4 | 22 |
tare = c(tare = c(7.981,7.940,7.945,7.991)
> wet = ,c(747.357972,977.473940,90,836,98.365)
> dry = c(48.354,72.210,67.464,78.623)
tare = 7.927,7.987),c(7.972,7.939,7.926,7.984),c(7.981990,7.940945,7.945913,7.991985))
wet = c(74.357,97.473,90.836,98.365,51.536,102.324,59.973,74.350,116.089,120.337,78.270,103.500,73.581,96.626,105.195,103.252)-tare
dry = c(48.354,72.210,67.464,78.623,29.353,68.270,42.641,55.189,79.391,92.536,59.924,84.423,46.360,69.548,77.396,83.068)-tare
moist vol = 100*(wet-dry)/wetvol = 3c(2,3)*pi*(5.31/2)^2rho
moist = 100*(wet-dry)/vol
tare = c(7.981,7.940,7.945,7.991)
> wet = c(74.357,97.473,90,836,98.365)
> dry = c(48.354,72.210,67.464,78.623)
tare = c(7.981,7.940,7.945,7.991)
wet = c(74.357,97.473,90.836,98.365)-tare
dry = c(48.354,72.210,67.464,78.623)-tare
moist = 100*(wet-dry)/wet
vol = 3*pi*(5.31/2)^2
[c(2,2,2,2,1,2,1,2,2,2,2,2,2,2,2,2)]
rho = dry/vol[c(2,2,2,2,1,2,1,2,2,2,2,2,2,2,2,2)]
m = array(moist,c(2,2,4))
grav.moist = t(0.5*(m[1,,]+m[2,,]))
grav.comp = t(m[2,,])
ec5 = matrix(c(30,23,27,25,34,21,34,22),ncol=2,byrow=T)
matplot(grav.comp,ec5,xlim=c(0,60),ylim=c(0,60)); abline(0,1,lty=2); abline(-8,1,col=3,lty=2)rho = dry/vol