Special Area of Conservation (SAC) Monitoring: European Dry Heath in Cwm Doethie-Mynydd Mallaen candidate Special Area of Conservation (cSAC) (2003)
The Cwm Doethie-Mynydd Mallaen candidate Special Area of Conservation (cSAC) supports dry heath and sessile oak woodland, both of which are features of international importance. This dataset includes data collected during a survey and monitoring programme of the dry heath feature at Cwm Doethie-Mynydd Mallaen cSAC, undertaken in 2003 and 2004. The purpose of the contract was to assess the condition, extent and distribution of the dry heath or potential dry heath within the boundary of the cSAC and to monitor the condition of selected plots against a set of performance indicators. The monitoring result would establish the present condition of the feature.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS115578
- Alternative Title
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- Monitro ACA Rhostiroedd Sych Ewropeaidd
- Metadata Language
- English
- Lineage
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Survey methodology consisted of a desk-study to identify potential search areas followed by site survey. The mapping was carried out primarily in October 2003 by R. Birch, with assistance for remote areas from K. Baukham; a small additional area was surveyed in January 2004. Homogeneous stands of heath were mapped in the field onto 1:10,000 scale ortho-rectified aerial photographs. Digital photographs of some stands were taken and these are included as target notes. Target notes were also taken of scattered bracken Pteridium aquilinum; scattered scrub; heavily disturbed areas and rare or notable species. A hand-held GPS was used to mark the locations of each target note. The condition of each stand was described using condition classes provided by CCW. The course followed in each plot was produced as an overlay in MapInfo (Mynydd Mallaen Dry Heath GPS_route). Each monitoring plot was then confirmed or reassessed as the category of heath mapped at original survey. The field mapping was completed between October 2003 and January 2004, and the data transferred to GIS. Monitoring plots against performance indicators included the following methodology; Eight monitoring plots across the site within selected vegetation stands were used to undertake sampling points whereby the vegetation was assessed within a 1metre radius against the criteria defining good quality dry heath.
- Dataset Reference Date (Publication)
- 2004-03-31
Extent
Extent
- Geographic Extent
- SIR CEREDIGION - CEREDIGION
- Geographic Extent
- SIR GAERFYRDDIN - CARMARTHENSHIRE
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Distribution
- Format Type and Description
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Image
()
- Specification
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[A] The final report in Microsoft Word and Adobe PDF formats. [B] A set of images produced in JPEG format [C] A series of GIS layers including survey boundaries, monitoring blocks, target notes, wet heath, grazing categories.
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Image
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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Survey methodology consisted of a desk-study to identify potential search areas followed by site survey. The mapping was carried out primarily in October 2003 by R. Birch, with assistance for remote areas from K. Baukham; a small additional area was surveyed in January 2004. Homogeneous stands of heath were mapped in the field onto 1:10,000 scale ortho-rectified aerial photographs. Digital photographs of some stands were taken and these are included as target notes. Target notes were also taken of scattered bracken Pteridium aquilinum; scattered scrub; heavily disturbed areas and rare or notable species. A hand-held GPS was used to mark the locations of each target note. The condition of each stand was described using condition classes provided by CCW. The course followed in each plot was produced as an overlay in MapInfo (Mynydd Mallaen Dry Heath GPS_route). Each monitoring plot was then confirmed or reassessed as the category of heath mapped at original survey. The field mapping was completed between October 2003 and January 2004, and the data transferred to GIS. Monitoring plots against performance indicators included the following methodology; Eight monitoring plots across the site within selected vegetation stands were used to undertake sampling points whereby the vegetation was assessed within a 1metre radius against the criteria defining good quality dry heath.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- Special Areas of Conservation (SAC) - SAC monitoring
- Sessile Oak
- quercus petraea
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
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Cwm Doethie mynydd mallaen cSAC European dry heath condition assessment monitoring
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW 2004 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313135353738 XML
- Metadata Language
- English
- Parent Identifier
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Condition monitoring of Special Areas of Conservation (SACs) in Wales
NRW_DS110194
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:22:11.029Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0