{"title":"Afon Gwy - United Kingdom","id":{"prefix":"https:\/\/deims.org\/","suffix":"22a26965-bb9c-4ec4-b149-f815fdeb86ac"},"type":"site","created":"2013-12-09T15:55:21+01:00","changed":"2023-07-28T11:17:38+02:00","attributes":{"affiliation":{"networks":[{"network":{"name":"UK Eutrophying and Acidifying atmospheric Pollutants network (UKEAP)","id":{"prefix":"https:\/\/deims.org\/networks\/","suffix":"47ccb7a9-ba65-4dd9-a564-4623d016d0ec"}},"siteCode":null,"verified":false},{"network":{"name":"UK Upland Waters Monitoring Network","id":{"prefix":"https:\/\/deims.org\/networks\/","suffix":"421275c4-acb7-4d5e-8cd8-929707ba28bd"}},"siteCode":"UWMN_18","verified":false}],"projects":null},"contact":{"siteManager":[{"type":"person","name":"Don Monteith","email":"donm@ceh.ac.uk","orcid":null}],"operatingOrganisation":null,"metadataProvider":[{"type":"person","name":"Andrew Sier [Primary ECN contact]","email":"arjs@ceh.ac.uk","orcid":null},{"type":"person","name":"Don Monteith","email":"donm@ceh.ac.uk","orcid":null}],"fundingAgency":null,"siteUrl":[{"title":"Afon Gwy on UWMN","value":"https:\/\/uwmn.uk\/afon-gwy-wye"}]},"general":{"abstract":"UK Upland Waters Monitoring Network (UK UWMN) site. The Afon Gwy lies to the east of Plynlimon in central Wales and forms part of the headwater system of the River Wye. The catchment area is 389 ha and rises from 380 m at the sampling station to a maximum altitude of 730 m. Catchment soils are dominated by peats and stagnopodsols. The underlying geology is Lower Palaeozoic mudstones, shales and grits of the Gwestyn and Van formations, overlain in places by locally-derived glacial drift. The catchment consists of moorland grasses, notably Molinia and Nardus, with Eriophorum and the moss Racomitrium on areas of wetter land and Pteridium on the lower slopes. The majority of this grassland supports rough grazing for sheep and in summer, on the lower land, cattle. The local area is crossed with tracks used for rally testing, one of which passes through the southern edge of the catchment. Some data are managed by UK ECN Data Centre. Note: The area is the size of the catchment. Note that Afon Gwy is within the Plynlimon Experimental Catchments (see http:\/\/data.lter-europe.net\/deims\/site\/EXPEER-UK-02). ","citation":null,"relatedIdentifiers":null,"status":{"label":"Operational","uri":"http:\/\/vocabs.lter-europe.net\/elter_cl\/10772"},"yearEstablished":1991,"yearClosed":null,"relatedSites":[{"typeOfRelationship":{"label":"belongs to","uri":"null"},"listOfSites":[{"type":"site","title":"Plynlimon - United Kingdom","id":{"prefix":"https:\/\/deims.org\/","suffix":"6d47f4ca-8621-49a4-8240-3021429d1db5"},"changed":"2025-01-07T11:14:56+0100"}]}],"siteName":"Afon Gwy","shortName":"UWMN_18b","siteType":"Stationary land-based site","protectionLevel":null,"landUse":null,"images":[{"url":"https:\/\/deims.org\/sites\/default\/files\/photos\/afon-gwy-united-kingdom_5218.jpg","alt":"Gwy flume"}]},"environmentalCharacteristics":{"airTemperature":{"yearlyAverage":10,"monthlyAverage":null,"unit":"\u00b0C","referencePeriod":null},"precipitation":{"yearlyAverage":2600,"monthlyAverage":null,"unit":"mm","referencePeriod":null},"biogeographicalRegion":"atlantic","biome":"freshwater_rivers","ecosystemType":[{"label":"Rivers","uri":null}],"eunisHabitat":[{"label":"Inland surface waters (C)","uri":null},{"label":"Surface running waters (C2)","uri":null}],"landforms":null,"geoBonBiome":["Fresh water rivers"],"geology":"The underlying geology is Lower Palaeozoic mudstones, shales and grits of the Gwestyn and Van formations, overlain in places by locally-derived glacial drift.","hydrology":"The altitude range is from 440 m to 700 m in the headwaters. The channel section utilised for biological sampling is 3-4 m wide and comprises a series of bedrock ledges, falls and boulder strewn riffles.","soils":"Peats and stagnopodsols","vegetation":"The catchment consists of moorland grasses, notably Molinia and Nardus, with Eriophorum and the moss Racomitrium on areas of wetter land and Pteridium on the lower slopes."},"geographic":{"boundaries":"POLYGON ((-3.7317699943882 52.453509084942, -3.7318234947057 52.453372311638, -3.7320515398259 52.453124526858, -3.7321288575217 52.452809550205, -3.7325483565893 52.452331092369, -3.7331186065029 52.451897345309, -3.734220779334 52.451424606558, -3.735298184959 52.451106192775, -3.7364168317157 52.450936358798, -3.7372801774429 52.450659844383, -3.7384140723197 52.450363892416, -3.7393552240194 52.450218555866, -3.7403342783296 52.450078273276, -3.7409018716309 52.449964552835, -3.7415928360761 52.449924031601, -3.7422023541565 52.449998780733, -3.7424526627079 52.450316803679, -3.7425295270103 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Biological measurements made annually ","siteVisitInterval":30},"notes":"Accommodation in nearby villages","collection":[{"label":"Relational database","uri":null}],"data":{"policy":{"url":null,"rights":["The data provider must be offered co-authorship for publications using this dataset at least within the metadata description"],"notes":null}}},"relatedResources":null,"projectRelated":{"lter":{"lterSiteClassification":"Extensive Site"}}}}