<div dir="ltr"><div><div><div>I'm not really suggesting replacing the tag, I just want to make it easier to find lowland heath.<br><br></div>For now these 2 pages by Alan Silverside (Uni of West Scotland) provide lots of good illustrations (names are still botanical though):<br><br></div><ul><li>Heathland 1: <a href="http://bioref.lastdragon.org/habitats/Heathlands1.html">http://bioref.lastdragon.org/habitats/Heathlands1.html</a></li><li>Heathlands 2: <a href="http://bioref.lastdragon.org/habitats/Heathlands2.html">http://bioref.lastdragon.org/habitats/Heathlands2.html</a></li></ul><p>Good examples of Acid Heath (D1.1 in Phase1) from Wales which may be familiar:</p><ul><li>South Stack, Holy Island, Anglesey</li><li>Yr Eifl & Mynydd Rhiw on Llyn<br></li><li>Rhinogs around Cwm Bychan (but not S part of range from Y Llethr towards Barmouth<br></li><li>Hills around World's End (N of Llangollen)</li><li>Much of Tryfan and the land to the S around Bwlch Tryfan</li><li>Moel Meirch (NW of Cnicht & S of Nant Gwynant)</li><li>Mynydd Mawr</li><li>Black Mountains S of Hay Bluff</li><li>Gray Hill, Gwent</li><li>Presellis</li><li>Radnor Forest and hills to S (SW of Gladestry)</li></ul><p>Of these areas Mynydd Rhiw and the S Rhinogs offer good examples of this heath in a mosaic with grassland.</p><p>Basic Dry Heath (D.1.2) is very rare in Wales.</p><p>Damp Heath (D.2):</p><ul><li>E side of the Rhinogs S of Coed y Brenin forestry</li><li>On the Migneint S of Ysbyty Ifan</li><li>A small patch SW of Sennybridge (Fforest Fawr), much of the rest a mosaic with grassland<br></li><li>Several patches on the S side of the Carneddau overlooking the A5</li></ul><p>Lichen Heath (D.3)</p><ul><li>Summits of the Glyderau</li></ul><p>Montane Heath (D.4)<br></p><p>None in the Welsh dataset</p><p>Mosaics (D.5 & D.6), see above where some have been noted under the core-heathland type.</p><p>Now I need to find more useful pics of these sites.</p><p>Jerry<br></p></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 25 September 2017 at 14:53, Andy Townsend <span dir="ltr"><<a href="mailto:ajt1047@gmail.com" target="_blank">ajt1047@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div class="m_465696818093082852moz-cite-prefix">On 25/09/2017 13:36, SK53 wrote:<br>
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<div dir="ltr">When this thread first started I thought we could
work to remove these multiple meanings, but having seen what
places with natural=heath from Corine imported-data in the
Cevennes, suspect that this is an unrealistic objective.</div>
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<br>
Well just because one bad import used "Tag A" is not necessarily a
reason to not use "Tag A" elsewhere. If we did that we'd never use
highway=residential post-TIGER :)<br>
<br>
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<div dir="ltr">
<p>The alternatives are to start sub-typing natural=heath, with
heath or heath:type. The main category to identify in the
short-term are the classic lowland heaths which are scarce
& threatened in the UK.</p>
<p>Wikipedia has a <a href="https://en.wikipedia.org/wiki/Heaths_in_the_British_National_Vegetation_Classification_system" target="_blank">partial tabulation</a> of the formal
heath categories in the National Vegetation Classification,
which may help as background reading. I'm sure that pretty
much all communities in the U-group (calcifugous grassland
& montane), several Mires (e.g., M15 & M16), and even
some calcicolous upland grasslands are included in current
natural=heath.</p>
<p>At a more practical level the <a href="http://jncc.defra.gov.uk/PDF/pub10_handbookforphase1habitatsurvey.pdf" target="_blank">JNCC Phase 1</a> guide recognises 6
heath categories, of which 4 are relatively common: wet &
dry heaths, and their respective mosaics with grassland.
Anything where the peat depth in the soil is NOT regarded as a
heath, but will be a Mire community (pennine moorland will be
largely blanket bog in this terminology).</p>
<p>Both <a href="https://wiki.openstreetmap.org/wiki/Key:plant_community" target="_blank">NVC</a> & <a href="https://wiki.openstreetmap.org/wiki/Proposed_features/Key:habitat" target="_blank">Phase1</a> have relevant pages on the
wiki for (slightly) further info. NVC is clearly far too
technical for just about everyone, but Phase1 is probably
usable with a small bit of guidance. <br>
</p>
<p>Probably the best way to take this forward is to compile good
examples of places people are likely to know (particularly in
National Parks) which have a known classification AND a
reasonable number of usable images on Geograph. Wales is the
easiest place to do this because the whole of the country was
mapped using Phase1.</p>
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</blockquote>
<br>
What would be useful to me would be to know what questions I should
be asking myself to allow something tagged sensibly down the line?
Can they be reduced from the 11 pages in
"pub10_<wbr>handbookforphase1habitatsurvey<wbr>.pdf" that you linked to and
phrased in ways that I could actually understand ("Ulex europaeus,
Cytisus scoparius and Juniperus communis scrub" is something that
would make Oleksiy in the Latin "talk@" thread very happy, but it's
all greek to me!)?<br>
<br>
Best Regards,<br>
<br>
Andy<br>
<br>
<br>
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