GeoNodeFeatureCatalogue
Generic Feature Catalogue
Generic Feature Catalogue
1.0
2016-01-11
DataMapWales
pointOfContact
geonode:pmfnfm_large_catchments_env_weighting
<p>This dataset comprises of a prioritisation method, with a weighting towards ecosystem service provision, for identifying larger catchments, above communities at risk from fluvial flooding where Natural Flood Management (NFM) may be a suitable means of reducing flood risk and may also provide additional environmental benefits. The dataset can be used to support the identification of areas suitable for NFM alongside other analyses undertaken by a suitably qualified person.</p>
<p>The information provided is based on a national scale mapping approach, taking into account largely modelled and open-source data, therefore this mapping should be viewed as indicative rather than specific. Locations identified may have more recent building or land use than available data indicates. It is important to note that land ownership and change to flood risk have not been considered.</p>
<p>This prioritisation has been based on an existing dataset highlighting catchments with a “Demand for Natural Flood Management”. These catchments were derived as part of the <strong>System Cynorthwyo Cunllunio Adnoddau Naturiol (SCCAN) </strong>maps created by Natural Resources Wales. </p>
<p>These larger catchments above communities at risk from fluvial flooding are prioritised based on the percentage area of NFM potential as identified in two mapping sources, the <a title="Maps for Natural Flood Management" href="https://naturalresources.wales/flooding/managing-flood-risk/maps-for-natural-flood-management/?lang=en" target="_blank" rel="noopener"><span style="color: #236fa1;"><strong>Working with Natural Processes (WwNP) potential area maps</strong></span> </a>and the <strong>System Cynorthwyo Cunllunio Adnoddau Naturiol (SCCAN)</strong> maps. The potential for the following features was summarised in the prioritisation:</p>
<ul>
<li><a title="Floodplain reconnection potential" href="/layers/inspire-nrw:NRW_WWNP_FLOODPLAIN_RECONECTION_POTENTIAL" target="_blank" rel="noopener"><strong><span style="color: #236fa1;">Floodplain reconnection potential </span></strong></a>(WwNP)</li>
<li><a title="Wider catchment woodland planting" href="/layers/inspire-nrw:NRW_WWNP_WIDER_CATCHMENT_POTENTIAL" target="_blank" rel="noopener"><span style="color: #236fa1;"><strong>Wider catchment woodland planting</strong></span></a> (WwNP)</li>
<li>Bog restoration (and restoration on common land) (SCCAN)</li>
<li>Opportunity to improve habitat condition – High priority (SCCAN)</li>
<li>Opportunity involving habitat change – High priority (SCCAN)</li>
<li>Opportunity for retention of winter stubbles in area at greater risk of flooding (SCCAN)</li>
</ul>
<p>The following features were given a double weighting for potential ecosystem service provision based on an analysis of the WwNP Evidence Directory:</p>
<ul>
<li>Riparian Woodland (WwNP)</li>
<li>Infiltration improvements on slowly permeable soils (WwNP)</li>
<li>Hedgerows (SCCAN)</li>
<li>Bog restoration (SCCAN)</li>
</ul>
<p>The catchments have been categorised based on the percentage area of NFM potential of:</p>
<ul>
<li><10%</li>
<li>10%-25%</li>
<li>25%-50%</li>
<li>>50%</li>
</ul>
<p> </p>
false
NFM Prioritisation for Larger Flood Risk Catchments with weighting for ecosystem service provision
id
1
1
xsd:int
wfd_id
1
1
xsd:string
wfd_name
1
1
xsd:string
catcharea
1
1
xsd:long
brarea
1
1
xsd:long
brclarea
1
1
xsd:long
spsarea
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1
xsd:long
rwarea
1
1
xsd:long
hrarea
1
1
xsd:long
hcarea
1
1
xsd:long
hiarea
1
1
xsd:long
wsarea
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xsd:long
froparea
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1
xsd:long
rafarea
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1
xsd:long
allnfmarea
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1
xsd:long
allnfmper
1
1
xsd:double
dbl_br_a
1
1
xsd:long
dbl_brcl_a
1
1
xsd:long
dbl_sps_a
1
1
xsd:long
dbl_rw_a
1
1
xsd:long
dbl_hr_a
1
1
xsd:long
w_allnfm_a
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1
xsd:long
w_allnfm_p
1
1
xsd:double
geom
1
1
gml:MultiPolygonPropertyType