WIA16

Yellow gum on prior stream levee		Site Code	WIA16	Calcic, Mesonatric, Red Sodosol
		Location	Corkers Creek Rd, Longerenong, Western Victoria
		Landform	Floodplain (prior stream).
		Geology	Quaternary Shepparton Formation: fluvial silt, sand and minor gravel.
		Element	Levee
		Slope	0–1%

Horizon	Depth (cm)	Description
A1	0–5	Dark yellowish brown (10YR4/4); light fine sandy loam; hard setting surface condition; weak coarse granular structure; very strong consistence dry; pH 5.9; sharp and irregular boundary to:
A2e	5–20	Dark brown (7.5YR4/4) conspicuously bleached (7.5YR7/3); light fine sandy loam; weak coarse granular structure; weak consistence dry; pH 6.0; sharp boundary to:
A3e	20–25	Dark brown (7.5YR4/4) conspicuously bleached (7.5YR7/3); fine sandy loam; massive (structureless); very strong consistence dry; pH 8.5; sharp and wavy change to:
B21	25–45	Yellowish red (5YR4/6); medium clay; weak very coarse prismatic structure; pH 9.0; gradual boundary to:
B22	45–70	Strong brown (7.5YR5/6); light clay; weak coarse prismatic structure; pH 9.5; gradual boundary to:
B23k	70–95	Strong brown (7.5YR5/6); medium clay; weak coarse prismatic structure; few (2-10%) soft carbonates; pH 9.7; sharp and wavy boundary to:
B32k	95–130	Brown (10YR5/3) with distinct yellowish red (5YR4/6) mottles; sandy clay; weak coarse subangular blocky structure; few (210%) soft carbonates; pH 9.7.
Management Considerations
Texture contrast soil with clay dominant in upper subsoil Possible buried soil at depth Slightly acidic surface soil, becoming alkaline into the subsoil Light surface soil, may be susceptible to sheet and wind erosion Subsoil weak structure and red mottling, indicating, some restriction to internal drainage Subsoil is sodic with high salinity levels at depth (below 45cm) Landform element, levee; moderate site drainage

Site WIA16	Sample depth cm	pH		EC dS/m	NaCl %	Ex Ca cmol-/kg	Ex Mg cmol-/kg	Ex K cmol-/kg	Ex Na cmol-/kg	Ex Al mg/kg	Ex acidity cmol-/kg	FC -30^okPa	PWP -1500^okPa	KS %	FS %	Z %	C %
Horizon	Sample depth cm	H₂O	CaCl₂	EC dS/m	NaCl %	Ex Ca cmol-/kg	Ex Mg cmol-/kg	Ex K cmol-/kg	Ex Na cmol-/kg	Ex Al mg/kg	Ex acidity cmol-/kg	FC -30^okPa	PWP -1500^okPa	KS %	FS %	Z %	C %
A1	0–5	5.9	NA	0.06	0.01	1.4	0.4	0.3	2.7	NA	2.7	NA	2.2	13	71	7	9
A2e	5–20	6	5.2	0.02	0.01	2.2	0.7	0.2	0.1	NA	0.7	11.7	1.4	12	71	11	6
A3e	20–25	8.5	NA	0.09	0.02	1.3	2.3	0.3	1.2	NA	0.5	NA	5.4	9	62	11	16
B21	25–45	9	NA	0.17	0.04	6.4	8.0	1.0	4.0	NA	1.0	NA	15.1	4	46	9	40
B22	45–70	9.5	NA	0.67	0.1	2.6	7.6	1.0	4.7	NA	NA	30.5	13.7	2	45	18	33
B23k	70–95	9.7	NA	0.85	0.13	2.6	7.3	0.9	4.7	NA	NA	NA	12.8	11	27	28	30
B31k	95–130	9.7	NA	0.72	0.11	2.4	8.6	1.0	5.6	NA	NA	NA	13.1	23	42	5	29
B32	130–165	9.6	NA	1.08	0.16	NA	NA	NA	NA	NA	NA	NA	18.9	16	31	5	41
B33	165–205	9.6	NA	1.08	0.16	NA	NA	NA	NA	NA	NA	NA	19.5	14	29	7	44

Note: NA=not assessed

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