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Layer: Land Environment New Zealand - Level 4 (ID: 11)

Parent Layer: Ecosystem Mapping

Name: Land Environment New Zealand - Level 4

Display Field: AREA_

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Date :First published: 2016Data Captured: N/ALast Updated: Updates are based on the availability of data.Creator: Manaaki Whenua Landcare ResearchPublisher: TRCSubject: Biodiversity, Ecosystem MappingPurpose: To be utilized for Open Data within the Web Map on Local Maps.Language: EnglishFormat: Feature Layer (hosted)Type: Vector (Polygon)Coverage: Top (Latitude) -38.668783, Bottom (Latitude) -39.879076, Left (Longitude) 173.745239, Right (Longitude) 175.103509Full ExtentXMin: 1664813.7010000004YMin: 5585311.012XMax: 1771372.6069999998YMax: 5713332.813Spatial Reference: 2193 (2193)Spatial Coverage: Taranaki Region, New ZealandProjection: New Zealand Transverse Mercator 2000 (NZTM2000)Description: This item displays Land Environments New Zealand (LENZ) Level4 in Taranaki Region. The dataset is classified based on Threat Level (%). It is included within the Ecosystem Mapping in Biodiversity group layer and serves as a feature layer for web maps in local mapping applications covering the Taranaki Region.LENZ is an environment-based land classification aimed at enhancing the management of New Zealand's environmental, conservation, and land resources. The classification process utilized fifteen spatially explicit data layers that describe various aspects of New Zealand's climate, landforms, and soils. These layers were selected based on their demonstrated functional and statistical relationships with the geographic distributions of widespread indigenous tree species.The classification itself involved a two-stage multivariate procedure. Initially, a non-hierarchical procedure was used to allocate data points to nearly 800 environments across the nation. Subsequently, relationships among these 800 environments were analyzed using a hierarchical classification procedure, enabling the presentation of results at different levels of classification detail. Four classification levels were ultimately defined and extensively documented, encompassing 20, 100, 200, and 500 environments nationally. "The classification process utilized fifteen spatially explicit data layers that describe various aspects of New Zealand's climate, landforms, and soils. These layers were selected based on their demonstrated functional and statistical relationships with the geographic distributions of widespread indigenous tree species.To classify the data, a two-stage multivariate procedure was employed. Initially, a non-hierarchical procedure allocated data points to nearly 800 environments across the nation. Subsequently, relationships among these 800 environments were analyzed using a hierarchical classification procedure, allowing for results to be displayed at various levels of classification detail. Four classification levels were ultimately defined and extensively documented, comprising 20, 100, 200, and 500 environments nationally.Documentation for the classification layers can be found in two referenced documents. The first document provides an overview of the foundational concepts of the classification, a description of the biological relevance of the underlying data layers, an overview of the first two classification levels, and practical examples of LENZ applications. The second document, more technically oriented, offers detailed descriptions of the processes used to derive the underlying data layers, the techniques employed in their classification, and case studies related to Levels II, III, and IV environments described in the initial volume."Leathwick, J., Wilson, G., Rutledge, D., Wardle, P., Morgan, F., Johnston, K., McLeod, M., Kirkpatrick. R. 2003. Land Environments of New Zealand - Nga Taiao o Aotearoa. David Bateman Ltd. Auckland. 184 pp.Leathwick, J., Morgan, F., Wilson, G., Rutledge, D., McLeod, M., Johnston, K. 2003. LENZ Technical Guide. Ministry for the Environment, Wellington. 237 pp. https://lris.scinfo.org.nz/#/file/290-lenz-technical-guide/Fields:OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )AREA_ ( type: esriFieldTypeDouble, alias: AREA )PERIMETER ( type: esriFieldTypeDouble, alias: PERIMETER )LEV4_POLY_ ( type: esriFieldTypeInteger, alias: LEV4_POLY_ )LEV4_POLY1 ( type: esriFieldTypeInteger, alias: LEV4_POLY1 )GRID_CODE ( type: esriFieldTypeInteger, alias: GRID_CODE )VALUE ( type: esriFieldTypeInteger, alias: VALUE )COUNT_ ( type: esriFieldTypeInteger, alias: COUNT )LVL_4 ( type: esriFieldTypeString, alias: LVL_4, length: 5 )HECTARES ( type: esriFieldTypeInteger, alias: HECTARES )ELEVATION ( type: esriFieldTypeSmallInteger, alias: ELEVATION )ANNUAL_TEM ( type: esriFieldTypeSingle, alias: ANNUAL_TEM )MIN_TEMP ( type: esriFieldTypeSingle, alias: MIN_TEMP )ANNUAL_SOL ( type: esriFieldTypeSingle, alias: ANNUAL_SOL )WINTER_SOL ( type: esriFieldTypeSingle, alias: WINTER_SOL )OCT_VPD ( type: esriFieldTypeSingle, alias: OCT_VPD )WAT_BAL_RA ( type: esriFieldTypeSingle, alias: WAT_BAL_RA )WATER_DEFI ( type: esriFieldTypeDouble, alias: WATER_DEFI )SLOPE ( type: esriFieldTypeSingle, alias: SLOPE )DRAINAGE ( type: esriFieldTypeSingle, alias: DRAINAGE )AGE ( type: esriFieldTypeSingle, alias: AGE )CHEM_LIMIT ( type: esriFieldTypeSingle, alias: CHEM_LIMIT )ACID_SOL_P ( type: esriFieldTypeSingle, alias: ACID_SOL_P )EXCH_CALCI ( type: esriFieldTypeSingle, alias: EXCH_CALCI )INDURATION ( type: esriFieldTypeSingle, alias: INDURATION )PARTICLE_S ( type: esriFieldTypeSingle, alias: PARTICLE_S )Z_IND_COVE ( type: esriFieldTypeSingle, alias: Z_IND_COVE )Z_PROTECTE ( type: esriFieldTypeSingle, alias: Z_PROTECTE )IND_COVER_ ( type: esriFieldTypeString, alias: IND_COVER_, length: 9 )THREAT_CAT ( type: esriFieldTypeString, alias: THREAT_CAT, length: 25 )Shape ( type: esriFieldTypeGeometry, alias: Shape )Shape_Length ( type: esriFieldTypeDouble, alias: Shape_Length )Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )Relation: https://trcnz.maps.arcgis.com/home/item.html?id=8c336441e5d44a699354ef777d8ac868Layer file K:\CS\COMPUTER_TECHNOLOGY\GIS\LENZ\LENZ_level4.lyrSource: Data collection and processing were conducted by Manaaki Whenua Landcare Research, with subsequent clipping by TRC GIS Specialist to include only features that intersect with the Taranaki Region boundary. Publication and distribution have been managed by TRC since 2016. The item was created by the TRC GIS TeamIdentifier: c2f9b54a0aab49afbf5e63def2b08ef0Version Control: None. Users should take note of the date on which they downloaded the data.

Copyright Text: Manaaki Whenua Landcare Research

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