cl_maintenanceAndUpdateFrequency

asNeeded

753 record(s)

 

Type of resources

Topics

Contact for the resource

Provided by

Years

Formats

Representation type

Update frequencies

Status

draft

From 1 - 10 / 753
  • This table provides Tolerable Fire Interval (TFI) information for Ecological Fire Groups and Ecological Vegetation Divisions on public land

  • Vicmap Imagery represents a suite of statewide aerial photography and satellite image products. The satellite imagey datasets are statewide Landsat 7 products. Datasets in the series are listed below. See their metadata entries for more detailed metadata. 2001 SPOT Panchromatic/Monochromatic - Vicmap Imagery (Satellite) (SPOTP- 2001VI10); Satellite Image Colour Mosaic (30 metre pixel) - Vicmap Imagery (Satellite) (TM7-2000VI30); Satellite Image Colour Mosaic (300 metre pixel) - Vicmap Imagery (Satellite) (TM7-2000VI300); Satellite Images Individual Scenes (30 metre pixel) - Vicmap Imagery (Satellite) (LANDSAT7ETM+);

  • This layer contains the line and polygon features depicting the Land Conservation Council Study Area boundaries according to the Statewide Assessment Report of 1989, with additional information showing historic studies. There are no boundaries for Special Investigations included in this dataset. An additional layer has been created showing later Environment Conservation Council Boundaries and the boundaries of some of the special investigations. Refer to ECC500

  • This layer contains the line and polygon features depicting the Land Conservation Council Study Area boundaries according to the Statewide Assessment Report of 1989. There are no boundaries for Special Investigations included in this dataset.

  • This layer shows the modelled Tolerable Fire Interval (TFI) status of vegetation on Victorian public land between years 2002 and 2015. TFIs are the minimum and maximum recommended time intervals between fire events for a particular vefetation community (see below for full definitions). The time interval is derived from the vital attributes of plant and animal species that occupy the vegetation community. The dataset categorises the landscape into five categories: Below minimum tolerable fire interval; Within tolerable fire interval; Above maximum tolerable fire interval; Public land with no recorded fire history; and Private land is also mapped. For a full understanding of the concepts on which this dataset is based, please see DSE Fire and adaptive management report no. 84, "Growth stages and tolerable fire intervals for Victoria's native vegetation data sets", David Cheal, 2010. Minimum TFI describes the minimum time required between two successive fire events at a site in order that a vegetation community or its constituent species can persist and have every reasonable chance of reaching maturity and setting seed. Expressed in years. Maximum TFI describes the maximum time required between two successive fire events at a site in order that a vegetation community or its constituent species can persist in the absence of fire. Expressed in years. The layer was created by the Fire and Emergency Management Division in the Department of Environment, Land, Water and Planning, and completed September 30th 2015.

  • This layer represents the spatial extent of fires recorded since 1903 to 2012 primarily on public land. The layer includes wildfire and DSE prescribed burn information. The layer is derived from fire100_{YEAR} dataset, and is a composite of individual fire100_{YEAR} layers from 1900 season to current forming a single dataset. This data set includes fire history records up to 2012 fire season. From 2013 the dataset design has been upgraded and the new data set is called FIRE_HISTORY.

  • Water Frontages are a subset of the VMPROP.V_PARCEL_MP_CROWN_APPROVED dataset. From the LIMS database, water frontage licences were selected and the associated parcels were selected on the SPI number or the P Number. The parcels selected were compared to the list of streams reserved under the 1881 reservation of water frontages for public purposes. A majority of streams were identified. Some stream beds and banks have not yet been parcelised, so any unidentified parcels were selected which aligned with the hydrology layer and had an irregular shape and were added to the layer. The VicMap hydrology layer was used to label water frontages.

  • This layer shows the modelled Growth Stage Structure (GSS) status of vegetation on Victorian public land between years 2002 and 2015. Vegetation GSS relates to the stages of vegetation succession. The GSS status of vegetation depends on when it was last burnt. For a full understanding of the concepts on which this dataset is based, please see DSE Fire and adaptive management report no. 84, "Growth stages and tolerable fire intervals for Victoria's native vegetation data sets", David Cheal, 2010. The dataset categorises the landscape into six categories: Juvenile; Adolescent; Mature; Old; Public land with no recorded fire history; and Private land. The four growth stages are a simplification from those provided in Cheal (2010) and encompass these groupings: (1) Juvenile (Renewal, Juvenility, Founding) - from immediate post-fire renewal to establishment, including the period before which the full floristic complement of species is reproductive (1) Adolescent (Adolescence) - the vegetation is relatively young, and the full complement of species is reproductive, but not at the rate characterising mature vegetation (3) Mature (Early Maturity, Maturity, Vigorous Maturity, Stasis, Established) - including when dominant species are fully reproductive through to stasis, when vegetation structure and reproductive capacity stabilise (4) Old (Waning, Senescence) - characterised by declining reproduction of the dominant species and decreasing propagule banks; if left undisturbed, vegetation may become senescent and is then unlikely to be reconstituted following fire. The layer was created by the Fire and Emergency Management Division in the Department of Environment, Land, Water and Planning, and completed September 30th 2015.

  • This layer represents polygon coverage Bushfire Risk Engagement Areas (BREA) across the entire State of Victoria, generally on both public and private land. BREA is broad land categorisation which provides a prioritisation framework for fuel management engagement and delivery where fire is suitable for managing risk. Generalised boundary layer aligned to areas of bushfire risk and may not correlate to natural, manmade or administrative features. Dataset was created 18 September with from the statewide strategic bushfire management planning process 2017-2019 Dataset last updated 20 April 2017 with changes from WCBRL (per A Boak). Dataset updated 30 Jan 2017 with changes from ECBRL (per F Wilson). Dataset updated 19 August 2016 with changes from MMGBRL (per D Prior).

  • This layer shows Ecological Fire Groups (EFG) and Ecological Vegetation Divisions (EVDs) on Victorian public land, as defined in Cheal (2010). EFGs are groupings of EVCs for the purpose of fire management. They are similar to EVDs, except that they enable for finer scale classification of vegetation based on fire response characteristics. It is recommended that fire ecology analyses are carried out in terms of EFGs rather than EVDs. For a full understanding of the concepts on which this dataset is based, please see DSE Fire and adaptive management report no. 84, "Growth stages and tolerable fire intervals for Victoria's native vegetation data sets", David Cheal, 2010. The relevant terms are explained in more detail below. An EVC is a native vegetation classification unit that is described through a commonality of its floristic, life form, and ecological characteristics, and through an inferred fidelity to particular environmental attributes. There are approximately 600 EVCs statewide. An EVD is a native vegetation classification unit based on grouping multiple EVC units that share similar ecological responses and relationships (including fire responses). There are 32 EVDs as of 2010. An EFG is a native vegetation classification unit which provides for the recoding and updating of more specific fire response characteristics for EVDs. For example particular EVCs within an EVD grouping may be known to exhibit different fire response characteristics, such as minimum tolerable fire intervals (see below). There are 37 EFGs as of 2010. Tolerable fire intervals are the minimum and maximum recommended time intervals between fire events for a particular vegetation community. The time interval is derived from the vital attributes of plant and animal species that occupy the vegetation community. Maximum TFI describes the maximum time required between two successive fire events at a site in order that a vegetation community or its constituent species can persist in the absence of fire. Expressed in years. A minimum TFI may be assigned for both low severity fire and high severity fire. Minimum low severity TFI describes the minimum time required between two successive fire events at a site, the first of which is a low-severity fire with a high proportion of unburnt landscape scattered within the fire perimeter, in order that a vegetation community or its constituent species can persist and have every reasonable chance of reaching maturity and setting seed. Minimum high severity TFI describes the minimum time interval required between two successive fire events at a site, the first of which is a high-severity fire, in order that a vegetation community or its constituent species can persist and have every reasonable chance of reaching maturity and producing propagules before the following fire event. Expressed in years. The dataset was compiled November 2010.