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.
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.
|1.||Soil Compaction Risk - ArcGIS Layer file||17.9 KB||lyr||
|Category||Environment > Lithosphere > Pedosphere > Soil process > Soil compaction|
|Tags||Downloadable Data, degredation, Soil, compaction, structural|
|Metadata||ISO 19115/19139, Dublin Core|
|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|