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Changes in Soil Stability in the Waikato Region from 2002 to 2007

TR 2009/30
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Report: TR 2009/30

Author:  A B Thompson, Thelton Environmental Ltd and D. L. Hicks

Executive summary

This report compares surveys of soil stability (intactness and disturbance) undertaken for Environment Waikato (EW) in 2003 and 2009.   Data were point-sampled from aerial photographic cover of the region in 2002 and 2007 respectively.   Both surveys were undertaken primarily to provide information about soil stability (intactness and disturbance) for state of environment reporting.

The monitoring was defined by the boundaries of the area that EW has statutory responsibility for.   Within this area, soil stability was assessed at 6122 sample points, distributed at 2 kilometre intervals on the map grid, using digital orthophotos taken for EW in 2002 and 2007.   Data recorded were land use, associated vegetation, soil stability, soil disturbance (if present), and area freshly disturbed (where present).

Changes in Soil Stability in the Waikato Region from 2002 to 2007 [PDF, 186 KB]