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County Wildife Site Criteria for Cornwall Appendices

County Wildife Site Criteria for Cornwall Appendices

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PONDS: SourcesDataset Description Owner Role in Inventory Access NotesA Study of theTrophic Status ofStandingFreshwater in<strong>Cornwall</strong>A report which givesan assessment of thetrophic state offreshwater in<strong>Cornwall</strong> (McCartney2006)EN Gives details of theTrophic Ranking Score(TRS) of every tetradin the countyERCCISOne otherOpen waterlandcover on GIS(1996)PONDS: CommentsMaps of open waterdrawn from acombination ofreferences and API.ERCCISShould be close to thePHT in many parts ofthe countyERCCISGood quality TrophicRanking Score (TRS)in<strong>for</strong>mation whichcorresponds to thetrophic state offreshwater n thecounty.Good qualityin<strong>for</strong>mationData SourcesA Study of the Trophic Statusof Standing Freshwater in<strong>Cornwall</strong>CommentA combination of these sources.One otherOpen water landcover on GIS(1996)The DefinitionProbably GoodReliability of PHTInterpretationProbably GoodOverall AssessmentProbably GoodCommentThere are no particular problems. The definition is clear, butwork needs to be done to identify which ponds are eligible <strong>for</strong>selection.ExplanationThe interpretation should cause no problemsCommentsThere are maps of te majority of the larger bodies of standoingfreshwater, but many bodies of

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