Intact soil core sampling and C2H2 incubation experiment

October 25-26, 2006

October 25:
1 m depth intact soil cores sampling in RCF and RCG

October 25~26;
C2H2 treatment (no, 10 Pa, 10 K Pa) incubation experiment, Soil moisture, bulk density, inorganic-N exraction and store residual soils in 4oC cooler.

gas sampling time
October 25, 10:00 pm (3hrs later)
October 26, 01:00 am (6hrs later)
October 26, 11:00 am (16hrs later)


With Kris, Jason, Francisco, Mustafa, Phil, Zack, Grant, Paulos, Leigh Ann, Paulos, and Martine.

Fig. 1 1m intact soil core

Fig. 2 Divide 4 pieces (0-15, 15-30, 30-60 and 60-100cm) and sample 8cm soil core in each piece and put the soil cores into Mason jars.

Fig. 3 Analyze nitrate and ammonia using residual soils.

Fig. 4 Incubate soils in 12oC

Fig. 5 Collect gas samples from Mason jars 3, 6 and 16hrs later after starting incubation.