Secondary parent material
The image displays a classification of secondary soil parent material.
As with the primary parent material there are approximately 100 different
classes of rock which have been be broadly grouped into 9 classes for display
purposes. The actual SPS input will use the most detailed level of definition.
The large amount of NoData space is apparent as in many areas there is
only one type of parent material. Again this input was simply created by
converting the polygons in the source data into the required resolution
grid using ArcInfo.
Source data=Soils geographical
database of Europe at scale 1:1M version 3.2
Soils are closely related to the parent material which weathers and supplies
minerals and inorganic nutrients to help fertilise the soil.
25th February 1998