The New Zealand Fundamental Soil Layer originates from a relational join of features from two databases: the New Zealand Land Resource Inventory (NZLRI), and the National Soils Database (NSD). The NZLRI is a national polygon database of physical land resource information, including a soil unit. Soil is one in an inventory of five physical factors (including rock, slope, erosion, and vegetation) delineated by physiographic polygons at approximately 1:50,000 scale. The NSD is a point database of soil physical, chemical, and mineralological characteristics for over 1500 soil profiles nationally. A relational join between the NZLRI dominant soil and derivative tables from the NSD was the means by which 14 important soil attributes were attached to the NZLRI polygons. Some if these attributes originate from exact matches with NSD records, while others derive from matches to similar soils or professional estimates. This layer contains best available, as at 2000, profile available water (PAW) data which estimates total available water for the soil profile to a depth of 0.9 m, or to the potential rooting depth (whichever is the lesser). Values are weighted averages over the specified profile section (0-0.9 m) and are expressed in units of mm of water.

Technical Details
Layer ID 100
Data type Vector polygon
Feature count 107298
Attributes GEOMETRY, DOMSOI, MAINSOIL, SOIL, SERIES, DOMNZSC, PAW_CLASS, PAW_MIN, PAW_MAX, PAW_MID, PAW_MOD, PAW_VAR, PAW_EST
Services Vector Query API, Web Feature Service (WFS), data.govt.nz Atom Feed
History
Added 28 May 2010
Revisions 1 - Browse all revisions
Current revision Imported on May 28, 2010 from Shapefile in NZGD2000 / New Zealand Transverse Mercator 2000.

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