The buttons under the "Navigation" tab allow you to move around
the map. You can also create and save bookmarks to use whenever
you visit the Agricultural Information Atlas website.
Maps are created with a static legend. Layers will appear in the
legend even when they are not turned on in the map.
You can add text, and draw points and shapes directly on your map.
Click the "Point" button under the "Markup & Printing" tab to see
all of the tools available. See the glossary section below for more
information about each tool.
You can add text, latitude/longitude coordinates and points to
your map. Right-click your mouse on the part of the map you would
like to label and select the tool you would like to use.
Takes you to a web page with contact information and important
Gives an overview of the AgMaps.
Create and save a bookmark of a map location to use at a later
Zooms in on the map view.
Zooms out from the map view
Returns the map view to its original location or region.
Go back to previous map view
Go forward through sequence of map views.
Map Information Tab
Allows you to choose layers to include or exclude from the map.
Allows you to click on a location and see layer information.
you to search for an area using different methods.
Allows you to search for specific features on the map.
Measure the distance and area of a feature on the map.
When you click the "Measure Distance" or the "Measure
Area" button, a drop-down menu will appear that allows you
to choose a unit of measurement.
When you click on the "Measure Area" button, the "Enable
Snapping" button will appear. If you click on it then a circle
with a point
will follow your cursor allowing you to "snap" the vertices
of your markup features, or points you want to measure, to other
you turn off the labels after you have measured an area or a distance.
Lets you erase markings made on the map.
Deletes all markings made on the map.
you to load your data into the map for viewing.
Markup and Printing Tab
Allows you to create a map using different pre-loaded templates.
Contains tools for drawing on maps.
Let's you edit an existing drawing on your map.
These tools are available in the drop-down menu of the "Edit"
button. You can edit a markup, erase a markup or clear all markups
on your map.
Allows you to choose the style of a drawing tool, such as colour
and type of line.
Allows you to download, in shp file format, the points, lines,
or polygons, you created on the map.
Allows you to export an image of the map, in various formats,
and include georeference data if you choose.
Markup Tools drop-down menu
Adds a point on the map.
Adds text to the map.
Draws straight lines on the map
Allows you to draw your own lines shapes not using straight lines.
Allows you to draw your own polygon shape not using straight lines.
ovals on the map.
circles on the map.
straight line polygons on the map.
rectangles on the map.
Ontario Soil Survey Complex Lay Labels
Outlines the boundaries of different soils
found throughout Ontario.
Soil Code, Slope Class, and Stoniness
A component of the SOILTYPE Soil code was created by the federal
government under the Canadian Soil Information Service (CanSIS).
Non-mineral soil codes begin with Z and are as follows: ZAL =
Bottom Land, ZUR = Urban, ZZZ = Water, ZBH = Beach, ZCR = Breypen
variable, ZDL = Disturbed Land, ZDN = Dune, ZER = Eroded Channel,
ZES = Escarpment, ZMD = Man Made, ZMH = Marsh, ZMK = Muck, ZML
= Marl, ZNM = Not Mapped, ZOR = Organic, ZPT = Peat, ZQY= Quarry
or Gravel Pit, ZRD = Ridge, ZRL = Rockland, ZRV = Ravine, ZSC
= Scarp, ZST = Stream Channel/Course, ZUN = Unclassified (Island),
ZVC = Valley Complex.
A letter designation commonly used in soil surveys, which symbolizes
both the slope magnitude and relative slope length. Each letter,
be it upper or lower case, represents a range of slope magnitude
commonly expressed as a percent. If the letter is upper case it
represents a simple slope meaning that it is >50m in length.
If the letter is lower case it represents a complex slope meaning
that it is <50m in length. CLASS A, a B, b C, c D, d E, e F,
f G, g H, h I, i J, j.
Occurrence of surface stoniness. Field manual for describing
soils in Ontario (Department of Land Resources, University of
Guelph, 4th Edition): Class Meaning - Not Applicable, 0 = Non-stony
1 = Slightly stony, 2 = Moderately stony, 3 = Very stony, 4 =
Exceedingly stony, 5 = Excessively stony In Peterborough, Leeds
and Grenville Rockiness was also included: Class Meaning 5 = Rockfree,
6 = Slightly rocky, 7 = Moderately rocky, 8 = Very rocky, 9 =
The original map symbol used on original
hardcopy soil survey maps. This character symbol is an abbreviation
of the soil name. For example, the symbol for TAVISTOCK LOAM is:
Hydrologic Soil Group
Hydrologic Soil Groups are used to estimate runoff from precipitation.
Classification of soils by their reference to intake rate of infiltration
of water, which is influenced by texture, organic matter content,
stability of the soil aggregates and soil horizon development.
Soils are assigned to one of four groups. They are grouped according
to the infiltration of water when the soils are thoroughly saturated.
Class Description A Soils having a high infiltration rate (low
runoff potential) when thoroughly wet. These consist mainly of
deep, well drained to excessively drained sands or gravelly sands.
These soils have a high rate of water transmission. B Soils having
a moderate infiltration rate when thoroughly wet. These consist
chiefly of moderately deep or deep, moderately well drained or
well drained soils that have moderately fine texture to moderately
coarse texture. These soils have a moderate rate of water transmission.
C Soils having a slow infiltration rate when thoroughly wet. These
consist chiefly of soils having a layer that impedes the downward
movement of water or soils of moderately fine texture or fine
texture. These soils have a slow rate of water transmission. D
Soils having a very slow infiltration rate (high runoff potential)
when thoroughly wet. These consist chiefly of clays that have
high shrink-swell potential, soils that have a permanent high
water table, soils that have a claypan or clay layer at or near
the surface, and soils that are shallow over nearly impervious
material. These soils have a very slow rate of water transmission.
Indicates classification of how well the
soil drains. Drainage Classes - VR = Very Rapidly, R = Rapidly
W = Well MW = Moderately Well I = Imperfectly, P = Poorly, VP
= Very Poorly, WA = Water, VA= Variable.
Soil Capability for Agriculture (Canada Land
Inventory Rating for Soil)
Canada Land Inventory (CLI) rating for the soil component. The
Canada Land Inventory for agriculture is an interpretative system
for assessing the effects of climate and soil characteristics
on the limitations of land for growing common field crops (corn,
soybeans, small grains, forages). In the CLI rating system there
are seven classes: Class Descriptions: Class 1 No significant
limitations in use for Crops Class 2 moderate limitations on use
for crops Class 3 moderately severe limitations on use for crops.
Class 4 Severe limitations on use for crops. Class 5 Very severe
limitations preclude annual cultivation; improvements feasible.
Class 6 Natural grazing only; no improvements feasible. Class
7 No capability for agriculture. O Organics. W Water. 0 not rated
(example: urban land). Classifying Prime and Marginal Agricultural
Soils and Landscapes: Guidelines for the Application of the Canada
Land Inventory in Ontario.
Surface Texture (Soil texture)
Soil texture of the surface or 'A' horizon. Soil texture is determined
by the relative proportion of sand, silt and clay found in a given
soil. The term "texture" refers to the size of the individual
soil particles and has nothing to do with the amount of organic
matter present in the soil. ATEXTURE Description: C = Clay, CL
= Clay Loam, CSL = Coarse Sandy Loam, FS = Fine Sand, FSL = Fine
Sandy Loam, GL = Gravelly Loam, GRAV = Gravel, GS = Gravelly Sand,
GSL = Gravelly Sandy Loam, L = Loam, LFS = Loamy Fine Sand, LS
= Loamy Sand, LVFS = Loamy Very Fine Sand, ORG = Organic, S =
Sand, SIC = Silty Clay SICL = Silty Clay Loam, SIL = Silt Loam,
SL = Sandy Loam, VFSL = Very Fine Sandy Loam, VAR = Variable
Three component label separated by dashes. Component percentages
are a superscript of the Texture. Component 1 has Texture GL with
component percentage 60, Component 2 has Texture FSL with component
percentage 20 and Component 3 has Texture SL with component percentage
*Note: Some soil polygons will have the same
attributes for more than one component. These polygons will present
a label like the Drainage label example below. The first component
Drainage attribute has an "R" value representing 50%
of the polygon, while the second component takes up 30%, and the
third component takes up 20%. Both component 2 and component 3
have the same Drainage attribute value, so they were combined
to represent one value with the combined percentage to show that
50% of the polygon represents a Drainage value of "W",
even though it consists of two components.
Geographical Information Services at the Ministry of Agriculture
and Food and Ministry of Rural Affairs