Land resource information system

1
Land resource information system

• A collective term that embodies
• The NZ Land Resource Inventory
• The National Soils Database
• The Fundamental Soil Layer
• Digitised soil maps
• Climate Layers

2
NZ Land Resource Inventory
Physiographic units Single polygon set multiple
attributes

Rock type Surface rock Underlying rock
1st Ed 1973-79 163,360 scale 90,000 polygons MMU
40ha Digital / 320 maps
Soil code Soil survey
2nd Ed 1982-98 (20) 150,000 scale 100,000
polygons MMU 10ha Digital
LUC Unit Potential erosion P radiata site
index Stock Carrying Capacity
3
NZ National Soils Database
New Zealand, Antarctic Pacific

gt1500 soil samples Point multiple attributes
Analytical Notes (e.g. taxonomy)
Moisture retention (e.g. water )
Horizon data (e.g. colour)
Analytical Method (e.g. Ph-H2O)
Soil Pit Site Description (e.g. locality)
Sample Index (e.g. sample No.)
XRF Analyses (e.g. lead ppm)
Chemistry (e.g. carbon )
Particle Size (e.g. fine clay )
Mineralogy (e.g. mica )
4
NZ Fundamental Soil Layer
Physiographic units Single polygon set multiple
attributes

pH Salinity CEC Carbon P retention Gravel
content Rock boulders Depth Drainage Available
water Macroporosity
1st Ed 1999 163,360 /150,000 scale 100,000
NZLRI polygons MMU 10ha Digital
Soil survey code
Soil series, type, phase
Soil set genetic group
NZ Soil Classification
2nd and successive editions plan to incorporate
detailed soil maps and soil models.
5
Digital soil maps
Polygon data multiple attributes

• Numerous
• But not geographically comprehensive
• 15,000 1100,000 scale
• Generally better soil data than NZLRI
• Digital, not all surveys published as maps

6
NZ Monthly Climate Layers
Derived from 100m DEM coupled with a thin-plate
spline surface fitted to meteorological station
data from 1950-1980

Mean average daily air temperature Mean max daily
air temperature Mean min daily air
temperature Earth temp normals (10cm depth) Mean
daily rainfall Mean daily rainfall
variability Mean 9am VPD Mean 9am humidity Mean
daily solar radiation Mean av.daily wind speed
.. And more.
7
Drivers Users

• Climate Change
• Biodiversity
• Sustainable Natural Resource Use
• Peri-urban
• Antarctic Treaty

• Scientists Landcare other researchers
• Central, Regional Local Government
• Land-based industries consultants
• General Public

8
Aspirations

• To deliver
• raw data,
• applications (e.g. environmental process models),
• derived data (e.g. output from applications),
• Efficiently and transparently

9
Proposed System Architecture
Being implemented 2003-2004