Root sampling in the Bear Creek watershed

March 15, 2006

Sampled roots of green ash tree (soil 0~100cm) with a intact soil coring method (D 5 cm, L 20 cm) and quadric method (100 x 100 x 100 cm) .

With Dr. Jin-Kie Yeo

Fig. 1 A plot (100x 100x 100 cm) was marked on soil surface.

Fig. 2 Collected intact soil core samples (D 5 cm, L 20cm, 3 each) on the soil surface.

Fig. 3 Soil (0cm ~20cm) was removed and collected intact soil cores on the soil surface (20cm~40cm). Coarse roots (0.5~2.5cm) was sortted in the removed soil.

Fig. 4 Soil (2 0cm ~40 cm) was removed and collected intact soil cores on the soil surface (60cm~80cm). Cores roots (0.5~2.5 cm) were sortted in the removed soil.

Fig. 5 A collected intact soil core was pulled out and then stored in a vinyl bag to transfer a lab.

Fig. 6 Cores roots (0.5~2.5 cm) were sortted in the removed soil and then were cutted to small size.

Fig. 7 Soil (60 0cm ~80 cm) was removed and then Cores roots (0.5~2.5 cm) were sortted in the removed soil.

Fig. 8 Collected intact soil cores on the soil surface (80 cm~100 cm).