Biodiversity Vegetation (BIOVEG) 2012 - GIS Layer

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BIODIVERSITY.sdeadmin.BIODIVERSITY_VEGETATION_2012

File Identifier: 4958A80F-F425-4519-91CF-6914F5FD991B Parent Identifier: E146F8FD-20D5-4FD2-8AF1-303F799F980B Hierarchy Level: feature Hierarchy Level Name: Feature of Biodiversity Vegetation (BIOVEG) 2012 - GIS Layer Abstract: Terrestrial vegetation, sand dunes and wetlands mapped off 2012 WRAPS imagery using a simplified version of the Land cover database (LCDB) classifications for the Waikato Region. Statement: The dataset currently contains mapped polygons representing terrestrial vegetation, palustrine wetlands, mangroves, and saline wetlands within Waikato Regional Council boundary. The data set was digitised off the 2012 WRAPS imagery using a simplified version of the Land cover database (LCDB) classifications. The capture scale for digitising was 1:5,000 although the imagery may have been used at up to 1:2,5000 for classifying wetland polygons. Despite this the recommended scale of use is no greater than 1:5,0000. The LCDB classifications were used because a survey of potential data set users at Waikato Regional Council found the classification adequate to meet most users’ needs and also because it was the most nationally consistent land use/cover classification available at the time. It is acknowledged that there are many other vegetation classifications out there (such as Leathwick et al (1995), Atkinson (1962) and Nicholls (1976)) that may be more suitable and/or detailed for some users such as ecologists but the goal of this project was to create a data set that had strong temporal and spatial consistency, was easily recognised nationwide and that met the needs of most users. As at 30/11/2018 the 2012 data is considered 99% complete for the Waikato Region. There may be further changes or refinements to the data sets pending current and future Bioveg and SNA contracts and feedback from local authorities and other users. There may be some minor modifications to a few polygons during biodiversity inventory work in the future. The data for the 2012 bioveg was undertaken by the Waikato Regional Council, contractors, and Wildland Consultants who completed Taupo District. The dataset is based on detailed specifications provided by Waikato Regional Council. Quality assurance was carried out by the Waikato Regional Council. The data set is seen as an indicative version representing vegetation cover in the Waikato Region as at 2012. It is possible that the data set may undergo minor modifications in the future based on more accurate feedback and field work. It is intended that an equivalent data set will be created every five years or so for change analysis but this is dependent on resource and budget availability and relevant policy requirements. The methods used for updating the data set may be different depending on technological advancements (such as the use of remote sensing) and resources available. Methods used in the development of this current data set are well documented and will be closely followed in order to achieve consistency between this and future data sets. Other Information: For the purposes of this project “Wetland” areas that are mapped are the palustrine wetlands (permanently or intermittently wet areas with vegetation emergent over shallow or subsurface freshwater, swamps, bogs and marsh), mangroves, and herbaceous saline wetlands. These areas can be queried out in the 'Wetland' attribute field where wetland = 'Yes'. 'Yes' indicates the polygon is a wetland. It should be noted that some non-mapped classes were mapped if they were identified as being wetland. For example, Low Producing Grassland areas that were identified as being a degraded wetland with some native wetland plants still present were mapped but the only attribute field populated was the “WETLAND” or a “MINOR_CLS” field. Coastal vegetation (Mangroves and Herbaceous Saline Vegetation) are mapped but for a more comprehensive data set on estuarine vegetation GIS_ALL.ESTUARINE_VEGETATION (DOCS# 628521 for the metadata). Keywords: Biodiversity,Conservation,Download,SNA,Waikato Data Portal Topic Category: biota:flora and/or fauna in natural environment environment:environmental resources, protection and conservation Resource Reference Date: 09/07/2015 Metadata Constraints Access Constraints: copyright Use Constraints: copyright Maintenance Information Maintenance frequency: notPlanned Last Load Date: 22/01/2019 Spatial Representation Information Recommended Scale: 1:5000 Reference System: EPSG2193 Spatial Representation Type: vector Vector Grid Geographic Bounding Box GeometricObjectType : surface geometricObjectCount : 46722 topologyLevel : geometryOnly Number of Dimensions : 2 Cell Geometry : Transformation Param Available : N westBoundLongitude : 1906114.0698 eastBoundLongitude : 1740399.205 southBoundLatitude : 5646086.9778 northBoundLatitude : 5966767.8279 Responsible Parties Role: owner Position: Organisation: Waikato Regional Council Delivery Point: 160 Ward Street City: Hamilton Central Postal Code: 3204 Country: New Zealand Phone: Fax: Email: Data Constraints Data Access Constraints : copyright Data Use Constraints: copyright Data Distribution: Unrestricted Licence Type : Creative Commons Attribution 4.0 International (CC BY 4.0) Licence: https://creativecommons.org/licenses/by/4.0/ Licence Expiry: Licence Conditions: Copyright : This work is licensed under a Creative Commons Attribution 4.0 International License. © Waikato Regional Council 2014. Biodiversity Vegetation (BIOVEG) 2012 Data. Licenced under CC BY 4.0. Data Disclaimers : “While Waikato Regional Council has exercised all reasonable skill and care in controlling the contents of this information, Waikato Regional Council accepts no liability in contract, tort or otherwise howsoever, for any loss, damage, injury or expense (whether direct, indirect or consequential) arising out of the provision of this information or its use by you.” If the data set is used in analysis the following acknowledgment must be used: “Derived from Waikato Regional Council Biodiversity Vegetation (BIOVEG) data dated 2012. Copyright Reserved.” If the data set is used in digital or hard copy maps the following acknowledgment must be used: “Biodiversity Vegetation (BIOVEG) data sourced from Waikato Regional Council dated 2012. Copyright Reserved.” The data should be considered indicative only and any use of the data for legal proceedings or purposes should be backed up by field checking of the relevant areas. Data Use Limits : Anyone using the data should be aware of the recommended scale of use. Short of having a multi-million dollar budget, it is impossible to achieve 100% accuracy in classifications or to consistently delineate the boundary to within a few meters of where that boundary actually lies on the surface of the earth. The data should be considered indicative only and any use of the data for legal proceedings or purposes should be backed up by field checking of the relevant areas. For this reason the UNCERTAIN1 and UNCERTAIN2 fields were created (see “Content of Data Set” above). Maps or carrying out analysis on this data at any scale greater than 1:5,000 may result in the inaccuracies being much more evident, or obvious errors in the analysis. It is advised data sets derived off this data set also should not be used at any scale greater than 1:5,000. Download Links URL Format Notes  dca6feb91810474ab4aba78be410954f Download @ Waikato Data Portal Supporting Information Links URL Format Notes General Notes: Terrestrial vegetation, sand dunes and wetlands mapped off 2012 WRAPS orthophotography using a slightly simplified version of the LCDB (1 and 2) classifications for the Waikato Region. Only classes relevant to regional terrestrial vegetation and wetland biodiversity have been mapped. Attribute Information Name Description Notes Restricted Primary Key LCDB2_NAME The dominant (at least 51% of area) LCDB2 class in a polygon The dominant (at least 51% of area) LCDB2 class in a polygon N N LCDB1_NAME The dominant (at least 51% of area) LCDB1 class in a polygon The dominant (at least 51% of area) LCDB1 class in a polygon N N GEN_VEG The generalised vegetation group (Predominantly Indigenous; Mixed Indigenous and Exotic; Predominantly Exotic; Uncertain or Boggy Pasture) assigned to the polygon by the Council. This is derived by running a nested IF functional attribute query on the LCDB2_NAME attribute Refer to table in WRC document DM#3226401 for reference to table for Generalised Vegetation class N N WETLAND Is the polygon wetland or contain wetland? (Yes/Null) Is the polygon wetland or contain wetland? (Yes/Null) N N MINOR_CLSA A minor LCDB2 class also found within the boundaries of the polygon. A minor LCDB2 class also found within the boundaries of the polygon. N N MINOR_CLSB A second minor LCDB2 class also found within the boundaries of the polygon. A second minor LCDB2 class also found within the boundaries of the polygon. N N MINOR_CLSC A third minor LCDB2 class also found within the boundaries of the polygon. A third minor LCDB2 class also found within the boundaries of the polygon. N N UNCERTAIN1 Indicates if the classifier was uncertain about the classification used, the boundary delineated for the polygon, whether the polygon is wetland or not, or a combination of any of these three things. Indicates if the classifier was uncertain about the classification used, the boundary delineated for the polygon, whether the polygon is wetland or not, or a combination of any of these three things. N N UNCERTAIN2 Indicates if the classifier was uncertain about any, or a combination of any, of the minor classes assigned. Indicates if the classifier was uncertain about any, or a combination of any, of the minor classes assigned. N N COMMENTS Any comments contributed by the classifier. Any comments contributed by the classifier. N N DISTRICT N N PRIMARYIND N N AREA_HA N N LCDB2_RGB N N ID The unique identifier for the polygon. The unique identifier for the polygon. N N GEOMETRY N N