This decision tree has been designed with the purpose of application with the Australian Soil Classification, which was created by R.F.Isbell. This work takes no credit for the creation of the classification system, it is simply a tool to be used to aid the process of classification. I recommend that any user has access to a copy of the book. Click here to order one online. I am using the 1st addition.
How the use the tool?
Read the questions in italics, than answer yes or no for the soil you are classifying.
Keep answering the questions until you get to a bold soil sub-order, of soil you are classifying.
Sub-Order Decision Tree Tool
Are soils not highly saline?
Yes, than it is Hypergypsic
No,
Are the soils highly saline?
Yes, than it is Hypersaline
No,
Does the soil calcareous made of shells and aquatic skeletons?
Yes, than it is Shelly
No,
Is there carbic material in top 0.5m?
Yes, than it is Carbic
No,
Is the upper 0.5m non-gravelly?
Yes, than it is Arenic
No,
Is the top 0.5m unconsolidated mineral material?
Yes, Is soil sandy in texture?
Yes, than it is Lutic
No, Is the soil gravelly?
Yes, than it is Clastic
No, than it is Stratic
No, than it is Leptic
SoilSarah 