2011091916151200FALSE20220310205517002022031020551700IIASA_007_HoldridgeLifeZones002-180.000000180.000000-56.00000083.5000001GeographicGCS_WGS_1984Angular Unit: Degree (0.017453)<GeographicCoordinateSystem xsi:type='typens:GeographicCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/2.8.0'><WKT>GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG",4326]]</WKT><XOrigin>-400</XOrigin><YOrigin>-400</YOrigin><XYScale>1111948722.2222219</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>8.983152841195215e-09</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><LeftLongitude>-180</LeftLongitude><WKID>4326</WKID><LatestWKID>4326</LatestWKID></GeographicCoordinateSystem>1.01500000005000INSPIREESRI ArcCatalog 9.3.1.3000enMap of Holdridge's life zone systemHoldridge’s work was aimed to correlate world plant formations with simple climatic data. The system embraces all major environmental factors in three hierarchical tiers.
Level I - The Life Zone. This is determined by specific quantitative ranges of long-term average annual precipitation, mean annual biotemperature and potential evapotranspiration ratio. These are modified for montane systems. Level II - The "Association". This is an area of land which, under undisturbed conditions, supports a distinctive natural community adapted through evolution to a specific narrow range of atmospheric and edaphic conditions. No Association can occur in more than one Life Zone.
Level III - The successional stage or cover type, which takes into account that the community may not be in its climax state, either through natural causes or through human intervention.
Level I – The Life Zone. This is determined by specific quantitative ranges of long-term average annual precipitation, mean annual biotemperature and potential evapotranspiration ratio. These are modified for montane systems. Level II - The "Association". This is an area of land which, under undisturbed conditions, supports a distinctive natural community adapted through evolution to a specific narrow range of atmospheric and edaphic conditions. No Association can occur in more than one Life Zone.
Level III – The successional stage or cover type, which takes into account that the community may not be in its climax state, either through natural causes or through human intervention.A map of the Level I Life Zones of the globe is available in digital form, usable at a scale of 1:30,000,000. It is however raster-based and quite coarse. It was prepared by Rik Leemans, who was then working in the Biosphere Project in IIASA, Laxenburg. The mapped classification does not differentiate montane communities as such but uses the major cooler climatic types to denote the montane progressions. This map was used for the non-tropical areas of the world in an exercise by the World Conservation Monitoring Centre (WCMC) and the Center for International Forest Research (CIFOR) to investigate global forest protection by forest type and ecological zone (Iremonger, S., C. Ravilious and T. Quinton (1997.). A statistical analysis of global forest conservation. In: Iremonger, S., C. Ravilious and T. Quinton (Eds.) A global overview of forest conservation. Including: GIS files of forests and protected areas, version 2. CD-ROM. CIFOR and WCMC, Cambridge, U.K. http://www.wcmc.org.uk/forest/data/cdrom2/).
Holdridge, L.R. collected and compiled by Leemans, R. 19901990Holdridge's life zones (polygon)holdridgevector digital datawithheldUnknownLeemans, R. 1992. Global Holdridge Life Zone Classifications. publication date1990None planned-180.000000180.00000083.500000-56.000000-180.000000180.000000-56.00000083.500000noneHoldridgeLife ZonesglobalworldApply to the UNEP-WCMC for terms and conditions of access.1) Adhere to terms and conditions of access, 2) acknowledge the source appropriately, 3) do not re-distribute part or all of data without contacting UNEP-WCMC.ShapefileUNEP-WCMCSpatial Analysis Unitmailing and physical address
219 Huntingdon Road
CambridgeCambridgehshireCB3 0DLUKspatialanalysis@unep-wcmc.org+44 (0) 1223277314+44 (0) 1223277136UNEP-WCMC will contact the third party originator before distributing data.enISO 19115v 2.0local timeUNEP-WCMCmailing and physical addressCambridgeCambridgeshireCB3 0DL
219 Huntingdon Road
UK+44 (0) 1223277314+44 (0) 1223277136spatialanalysis@unep-wcmc.orgUNEP-WCMC will contact the third party originator before distributing data.20110919Downloadable DataSpatial Analysis UnitUNEP-WCMCmailing and physical address
219 Huntingdon Road
CambridgeCambridgeshireCB3 0DLUK+44 (0) 1223277314+44 (0) 1223277136spatialanalysis@unep-wcmcUNEP-WCMC will contact the third party originator before distributing data.1.3301.330VectorSimpleFALSE4831TRUEFALSEGCS_WGS_1984Decimal degrees0.0000000.000000D_WGS_1984WGS_19846378137.000000298.257224Explicit elevation coordinate included with horizontal coordinates1.000000IIASA_007_HoldridgeLifeZonesFeature Class4831Holdridge's Life ZonesUNEP-WCMCobjectid_1objectid_1OID4100Internal feature number.EsriSequential unique whole numbers that are automatically generated.OBJECTIDobjectidInteger4100Internal feature number.ESRISequential unique whole numbers that are automatically generated.ZONEzoneInteger4100Numerical zones from 0 to 38HoldridgeSHAPEshapeGeometry800Feature geometry.ESRICoordinates defining the features.DESC_desc_String5000Description of ZoneLeemans, Rst_area_shst_area_shDouble8388st_area(shape)st_area(shape)Double000st_length(shape)st_length(shape)Double000Complete dataset for the terrestrial world.
It is useable at a nominal scale of 1:30,000,000 but it is however raster-based and quite coarse.30000000Data was prepared by Rik Leemans, 1990, who was then working in the Biosphere Project in IIASA, Laxenburg, Austria.Dataset copied.withheld20080305Dataset copied.withheld2011091916151200UNEP-WCMC+44 (0) 1223277314+44 (0) 1223277136219 Huntingdon RoadCambridgeCambridgeshireCB3 0DLUKspatialanalysis@unep-wcmc.orgUNEP-WCMC will contact the third party originator before distributing data.20220310ArcGIS Metadata1.0UNEP-WCMCSpatial Analysis Unit+44 (0) 1223277314+44 (0) 1223277136219 Huntingdon RoadCambridgeCambridgeshireCB3 0DLUKspatialanalysis@unep-wcmcUNEP-WCMC will contact the third party originator before distributing data.withheldEnterprise Geodatabase Feature ClassHoldridge's life zones (1992)1990Holdridge, L.R. collected and compiled by Leemans, R. 1990vector digital dataCitation: Leemans, R. (1992). Global Holdridge Life Zone Classifications. Laxenberg (Austria): IIASA.<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Map of Holdridge's life zone system</SPAN></P></DIV></DIV></DIV>Holdridge’s work was aimed to correlate world plant formations with simple climatic data. The system embraces all major environmental factors in three hierarchical tiers.
Level I - The Life Zone. This is determined by specific quantitative ranges of long-term average annual precipitation, mean annual biotemperature and potential evapotranspiration ratio. These are modified for montane systems. Level II - The "Association". This is an area of land which, under undisturbed conditions, supports a distinctive natural community adapted through evolution to a specific narrow range of atmospheric and edaphic conditions. No Association can occur in more than one Life Zone.
Level III - The successional stage or cover type, which takes into account that the community may not be in its climax state, either through natural causes or through human intervention.UNEP-WCMCSpatial Analysis Unit+44 (0) 1223277314+44 (0) 1223277136219 Huntingdon RoadCambridgeCambridgehshireCB3 0DLUKspatialanalysis@unep-wcmc.orgUNEP-WCMC will contact the third party originator before distributing data.globalworldHoldridgeLife ZonesHoldridgeLife Zonesglobalworld<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>1) Adhere to terms and conditions of access, 2) acknowledge the source appropriately, 3) do not re-distribute part or all of data without contacting UNEP-WCMC.</SPAN></P></DIV></DIV></DIV>Apply to the UNEP-WCMC for terms and conditions of access.ESRI ArcCatalog 9.3.1.3000true-180.000000180.00000083.500000-56.000000publication date1990A map of the Level I Life Zones of the globe is available in digital form, usable at a scale of 1:30,000,000. It is however raster-based and quite coarse. It was prepared by Rik Leemans, who was then working in the Biosphere Project in IIASA, Laxenburg. The mapped classification does not differentiate montane communities as such but uses the major cooler climatic types to denote the montane progressions. This map was used for the non-tropical areas of the world in an exercise by the World Conservation Monitoring Centre (WCMC) and the Center for International Forest Research (CIFOR) to investigate global forest protection by forest type and ecological zone (Iremonger, S., C. Ravilious and T. Quinton (1997.). A statistical analysis of global forest conservation. In: Iremonger, S., C. Ravilious and T. Quinton (Eds.) A global overview of forest conservation. Including: GIS files of forests and protected areas, version 2. CD-ROM. CIFOR and WCMC, Cambridge, U.K. http://www.wcmc.org.uk/forest/data/cdrom2/).
1-180.000000180.00000083.500000-56.000000Citation: Leemans, R. (1992). Global Holdridge Life Zone Classifications. Laxenberg (Austria): IIASA.Complete dataset for the terrestrial world.
It is useable at a nominal scale of 1:30,000,000 but it is however raster-based and quite coarse.Data was prepared by Rik Leemans, 1990, who was then working in the Biosphere Project in IIASA, Laxenburg, Austria.300000004831datasetEPSG6.2(3.0.1)