Vulnerability to Soil Structural Degradation

1775
83
Added
13 Oct 2011

This dataset was first added to LRIS Portal on 13 Oct 2011.

Untimely cultivation, grazing and forestry operations when the soils are wet give rise to a rapid and marked loss of soil structure and a reduction in soil permeability and aeration owing to the compaction, deformation and consolidation of the topsoil and upper subsoil. This degradation results from the pressure of heavy machinery or treading by stock. Some soils are more at risk than others due to their poor resistance and resilience to compacting forces, poor drainage, limited water holding capacity, or higher rainfall.

References
Parfitt, R. L.; Lilburne, L. R.; Shepherd, T. G.; Andrew, R. M. 2002: Vulnerable soils: national maps and models of resistance to pressures. Proceedings of Soil Quality and Sustainable Land Management conference, Palmerston North, New Zealand, 3-5 April, 2002.

Shepherd, T. G.; Lilburne, L. R.; Sparling, G. P. 2000: A rule-based assessment of soil structural vulnerability. Soil News 48(5):127-132.

Attachments
1. Soil Compaction Risk - ArcGIS Layer file 17.9 KB lyr
Technical Details
Layer ID 168
Data type Vector polygon
Feature count 139526
Attributes COMPACTRIS, DOMSOI, LUCNO, JAN_RISK, FEB_RISK, MAR_RISK, APR_RISK, MAY_RISK, JUN_RISK, JUL_RISK, AUG_RISK, SEP_RISK, OCT_RISK, NOV_RISK, DEC_RISK
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
History
Added 28 Oct 2010
Revisions 1 - Browse all revisions
Current revision Imported on Oct. 28, 2010 from Shapefile in NZGD49 / New Zealand Map Grid.

Embed

Copy and paste the following code to embed this layer as a single map in your blog or website: