Create a Zones Map Using Topography

Use elevation, slope, and terrain patterns to create management zones for drainage and input planning.

1. Select the field in the tree, click the Create Zones Map button, select Single-layer, and then click Next.

2. Select the Topography data type to proceed.

1. In the next step select the most appropriate Digital Elevation option:

• Elevation – absolute numbers

• Slope – the measure of steepness or the degree of inclination of a feature relative to the horizontal plane

• Aspect – the compass direction that a slope faces

• Hillshade – a shaded relief effect for terrain visualization

• Elevation and hillshades

• Slope and Aspect

• Relief Position – defined as the difference between a central pixel and the mean of its surrounding cells.

• Ruggedness – defined as the mean difference between a central pixel and its surrounding cells.

• Roughness – the degree of surface irregularity. It is calculated from the largest inter-cell difference between a central pixel and its surrounding cells.

After you have selected the required value, click Next.

1. In the next step, you can edit the title, change the number of zones, select a Data Classification Type, and define the Minimum Polygon Area in square meters. Click Run Analysis to proceed.

The analysis may run for up to 60 seconds, depending on the parameters you have specified.

1. Once it is finished, click Save & Finish.

After it is saved, you will see the following message:

You can create another zones map, assign rates, or open the Zones Map you just created. If you open it, you will see a similar view.