Smap Predicted Carbon August 2022

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162
3
Added
20 Aug 2022

This dataset was first added to LRIS Portal on 20 Aug 2022.

Spatial estimates of gravimetric soil carbon (%) for the 0–7.5 topsoil layer, over the land surface of New Zealand. It was derived using gradient boosting regression from a range of environmental classification, national soil classification, and climate layers as explanatory variables.

The model was calibrated on a large number of samples (approx. 17,000 laboratory samples) assembled from a range of different soil science projects, including data in the National Soil Repository Database (NSDR), the Land Management Index (LMI) dataset, and the GNS geochemical baseline dataset.

Estimates of soil carbon are made on a grid where each grid cell has dimensions 100 m x 100 m (1 ha). The value at each grid cell is our best estimate of the average soil carbon percent at the centre point of each grid cell.

Layer ID 110217
Data type Grid
Resolution 100.000m
Services Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed

S-map - a soil spatial information system for New Zealand (current)

Online
Only
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364
0
Added
17 Aug 2022

This dataset was first added to LRIS Portal on 17 Aug 2022.

This layer shows the coverage of S-map polygons, labelled with their Soil mapunit – a unique identifier of one or more polygons with the same soil information.
The S-map primary map layer of soil classes (i.e. delineated areas that are labelled with the soil family names) is no longer freely available to commercial users. Access to this data and associated soil attribute data for commercial use is by negotiation - contact Graeme Anderson (andersong@landcareresearch.co.nz).

ACCESS to publicly available S-map data is now at
Smap Soil Depth
Smap Soil Drainage
Smap Soil Texture
Smap NZ Soil Classification
Smap Nitrogen Leach Risk
Smap Relative Bypass Flow

Layer ID 110132
Data type Vector polygon
Feature count 386738
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Smap Nitrogen Leach Risk Aug 2022

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300
11
Added
17 Aug 2022

This dataset was first added to LRIS Portal on 17 Aug 2022.

The susceptibility of the soil to nitrogen leaching - the process whereby excess nutrients not held by the clay and organic matter complex of the soil leach beyond the root zone and contaminate groundwater. The susceptibility rating is based on the capacity of the soil to store water and the attenuation of nitrogen through denitrification associated with anaerobic conditions. It does not take into account the climate or land use but is limited to the effect of the soil characteristics. Please refer to document Smap Data Dictionary Dissolved Layers.pdf at lris.scinfo.org.nz/document/22129-smap-data-dictio...

Layer ID 110131
Data type Vector polygon
Feature count 170484
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Smap Relative Bypass Flow Aug 2022

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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

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116
1
Added
17 Aug 2022

This dataset was first added to LRIS Portal on 17 Aug 2022.

Relative bypass flow is the potential susceptibility of water infiltrating at the soil surface to bypass the soil matrix as it drains through the soil. This is where the infiltrating water rapidly ‘short circuits’ the soil by percolating along preferential pathways (i.e., macropores, cracks, fissures, decayed-root channels). The vulnerability of land to bypass flow is based on soil classification, soil structure, and soil attributes that promote ponding. It does not take into account climate or land use. Please refer to document Smap Data Dictionary Dissolved Layers.pdf at lris.scinfo.org.nz/document/22129-smap-data-dictio...

Layer ID 110128
Data type Vector polygon
Feature count 148721
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Smap Soil Depth Aug 2022

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165
10
Added
17 Aug 2022

This dataset was first added to LRIS Portal on 17 Aug 2022.

Soil depth is defined according to a traditional agronomic concept of soil depth (Webb &
Lilburne 2011). Note that while the layer defining soil depth may cause some restriction in root penetration, it does not necessarily define the base of the potential rooting depth. This layer is a "dissolved" representation of the soil depth attribute for S-map soils, where neighbouring S-map polygons have been combined if they have the same value of the attribute. Refer to document Smap Data Dictionary Dissolved Layers.pdf at lris.scinfo.org.nz/document/22129-smap-data-dictio...

Layer ID 110127
Data type Vector polygon
Feature count 65289
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Smap Soil Classification (Soil Order) Aug 2022

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318
45
Added
17 Aug 2022

This dataset was first added to LRIS Portal on 17 Aug 2022.

NZSC Order is the first level of the NZ soil classification (Hewitt, 2010). This layer is a "dissolved" representation of the NZSC soil order attribute for S-map, where neighbouring S-map polygons have been combined if they have the same value of the attribute. Refer to document Smap Data Dictionary Dissolved Layers.pdf at lris.scinfo.org.nz/document/22129-smap-data-dictio...

Layer ID 110126
Data type Vector polygon
Feature count 202871
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Smap Soil Drainage Aug 2022

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234
20
Added
17 Aug 2022

This dataset was first added to LRIS Portal on 17 Aug 2022.

Soil drainage is a relatively simple classification of the soil profile that describes the likelihood of seasonal wetness (Webb & Lilburne 2011). It is based on the occurrence within specific depths of redox segregation and low chroma colours indicative of waterlogging and reduction (Milne et al. 1995). This layer is a "dissolved" representation of the soil drainage attribute for S-map soils, where neighbouring S-map polygons have been combined if they have the same value of the attribute. Please refer to document Smap Data Dictionary Dissolved Layers.pdf at lris.scinfo.org.nz/document/22129-smap-data-dictio...

Layer ID 110125
Data type Vector polygon
Feature count 156646
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Smap Soil Texture Aug 2022

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119
9
Added
17 Aug 2022

This dataset was first added to LRIS Portal on 17 Aug 2022.

Soil texture is the dominant texture class in the control zone (usually the upper 60 cm) of the soil profile as defined in Webb & Lilburne (2011). This layer is a "dissolved" representation of the soil texture attribute for S-map, where neighbouring S-map polygons have been combined if they have the same value of the attribute. Refer to document Smap Data Dictionary Dissolved Layers.pdf at lris.scinfo.org.nz/document/22129-smap-data-dictio...

Layer ID 110124
Data type Vector polygon
Feature count 106646
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

NZEnvDS_Wind exposition index v1.0

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168
12
Added
09 Apr 2022

This dataset was first added to LRIS Portal on 09 Apr 2022.

New Zealand Environmental Data Stack (NZEnvDS) comprises a set of 72 spatial layers for environmental modelling and site characterisation. NZEnvDS includes the layers that informed the Land Environments of New Zealand (LENZ), additional layers generated for LENZ that were never publicly released, and additional layers generated since, all covering mainland New Zealand and surrounding inshore islands. The original/top copy of the dataset is available at (doi.org/10.7931/m6rm-vz40), but the layers are reproduced here for ease of access. See (newzealandecology.org/nzje/3440/) for a publication describing NZEnvDS. A measure for how exposed a location is to potential winds from all directions. The unit is a dimensionless index with values below 1 indicating wind shadowed areas, and values above 1 indicating wind exposed areas. Calculated from the NZEnvDS “elevation” DEM and the SAGA Morphometry module in SAGA GIS version 7.3.0.

Please cite the original paper as attribution when using these layers.

Layer ID 107416
Data type Grid
Resolution 100.000m
Services Raster Query API, Catalog Service (CS-W)

NZEnvDS_Topographic wetness index v1.0

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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

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191
15
Added
09 Apr 2022

This dataset was first added to LRIS Portal on 09 Apr 2022.

New Zealand Environmental Data Stack (NZEnvDS) comprises a set of 72 spatial layers for environmental modelling and site characterisation. NZEnvDS includes the layers that informed the Land Environments of New Zealand (LENZ), additional layers generated for LENZ that were never publicly released, and additional layers generated since, all covering mainland New Zealand and surrounding inshore islands. The original/top copy of the dataset is available at (doi.org/10.7931/m6rm-vz40), but the layers are reproduced here for ease of access. See (newzealandecology.org/nzje/3440/) for a publication describing NZEnvDS. Quantifies topographic control of hydrological processes by combining local upslope contributing area in the landscape with slope. Calculated from the “elevation” DEM and the SAGA Wetness Index module in SAGA GIS version 7.3.0.

Please cite the original paper as attribution when using these layers.

Layer ID 107415
Data type Grid
Resolution 100.000m
Services Raster Query API, Catalog Service (CS-W)
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