FSL New Zealand Soil Classification

26 May 2010

This dataset was first added to LRIS Portal on 26 May 2010.

The soil fundamental data layers (FDLs) contain spatial information for 16 key attributes, each of which is measurable (i.e. is given a numeric value rather than being assigned to a descriptive class or category) and is recorded in appropriate units of measure. Since attributes have measurable values, FDLs are particularly useful in computer modelling and have enabled researchers and resource management decision-makers to make the most of rapid developments in GIS technology. Key soil attributes were selected through a consultation process with stakeholders, and generally fall into three groups: soil fertility/toxicity, soil physical properties (particularly those related to soil moisture), and topography/climate (T). Parameters include slope, potential rooting depth, topsoil gravel content, proportion of rock outcrop, pH, salinity, cation exchange capacity, total carbon, phosphorus retention, flood interval, soil temperature, total profile available water, profile readily available water, drainage, and macropores (shallow and deep).

Regional soil databases were the key to generating FDLs. New Zealand was subdivided into several geographic regions and soil scientists were allocated a region for which they developed a ‘regional legend’, i.e. database. Regional data were correlated using the New Zealand Soil Classification (NZSC), referenced to the National Soils Database (NSD) and other relevant data sources, and then linked to the soil polygons in the New Zealand Land Resource Inventory (NZLRI). This layer holds the NZSC data upon which the remaining FSLs were based.

1. LRIS Data Dictionary - v3 994 KB doc
2. NZ Soil Classification ArcGIS layer file 37.9 KB lyr
Technical Details
Layer ID 79
Data type Vector polygon
Feature count 107298
Attributes nzsc_class, nzsc_group, nzsc_order, SHAPE_fid
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
Added 26 May 2010
Revisions 1 - Browse all revisions
Current revision Imported on May 26, 2010 from Shapefile in NZGD2000 / New Zealand Transverse Mercator 2000. 102 geometries modified to be OGC compliant. Changelog.


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