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          <title>Dalgylchoedd Mwy gyda phwysiad ar gyfer darparu gwasanaethau ecosystem</title>
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            <publish>Yr Is-adran Dŵr a Llifogydd</publish>
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          <themekey>Natural flood management</themekey>
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      <accconst>Cyfyngiadau Eraill</accconst>
      <descript>
        <abstract>Mae’r set ddata hon yn cynnwys dull blaenoriaethu, gyda phwysiad tuag at ddarpariaeth gwasanaethau ecosystem, ar gyfer nodi dalgylchoedd mwy, uwchlaw cymunedau sydd mewn perygl o lifogydd afonol lle gallai Rheoli Llifogydd Naturiol (RhLlN) fod yn ffordd addas o leihau perygl llifogydd a gallai hefyd ddarparu manteision amgylchedd amgylcheddol ychwanegol. Gellir defnyddio’r set ddata i gefnogi’r gwaith o nodi meysydd sy’n addas ar gyfer RhLlN ochr yn ochr â dadansoddiadau eraill a wneir gan berson â chymwysterau addas. Mae’r wybodaeth a ddarperir yn seiliedig ar ddull mapio ar raddfa genedlaethol, gan ystyried data ffynhonnell agored wedi’i fodelu’n bennaf, felly dylid ystyried y mapio hwn fel un dangosol yn hytrach na phenodol. Mae'n bosibl bod gan leoliadau a nodwyd ddefnydd mwy diweddar o adeiladau neu dir nag y mae data sydd ar gael yn ei ddangos. Mae’n bwysig nodi nad yw perchnogaeth tir a newid i berygl llifogydd wedi’u hystyried. Mae'r blaenoriaethu hwn wedi'i seilio ar set ddata sy'n bodoli eisoes sy'n amlygu dalgylchoedd â "Galw am Reoli Llifogydd Naturiol". Deilliodd y dalgylchoedd hyn fel rhan o'r Mapiau System Cymorth Cynllunio Adnoddau Naturiol (SCCAN) wedi’u creu gan Cyfoeth Naturiol Cymru. Mae’r dalgylchoedd mwy hyn uwchlaw cymunedau sydd mewn perygl o lifogydd afonol yn cael eu blaenoriaethu ar sail y ganran arwynebedd o botensial NFM fel y’i nodwyd mewn dwy ffynhonnell fapio, mapiau ardaloedd posibl Gweithio gyda Phrosesau Naturiol (GgPN) a mapiau’r System Cefnogi Cynllunio Adnoddau Naturiol (SCCAN). Crynhowyd y potensial ar gyfer y nodweddion canlynol yn y flaenoriaeth:  Potensial i ailgysylltu gorlifdir (GgPN) Plannu coetir yn y dalgylch ehangach (GgPN) Adfer cors (ac adfer tir comin) (SCCAN) Cyfle i wella cyflwr cynefinoedd – Blaenoriaeth uchel (SCCAN) Cyfle yn ymwneud â newid cynefinoedd – Blaenoriaeth uchel (SCCAN) Cyfle i gadw sofl gaeaf yn yr ardal sydd mewn mwy o berygl o lifogydd (SCCAN)  Rhoddwyd pwysiad dwbl i’r nodweddion canlynol ar gyfer darpariaeth gwasanaeth ecosystem posibl yn seiliedig ar ddadansoddiad o Gyfeirlyfr Tystiolaeth PCGC:  Coetir Torlannol (GgPN) Gwelliannau ymdreiddiad ar briddoedd athraidd araf (GgPN) Gwrychoedd (SCCAN) Adfer cors (SCCAN)  Mae’r dalgylchoedd wedi’u categoreiddio yn seiliedig ar ganran arwynebedd potensial NFM sef:  &lt;10% 10%-25% 25%-50% &gt;50%</abstract>
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            <begdate>2017-01-01</begdate>
            <enddate>2022-12-31</enddate>
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      <metd>2025-02-18</metd>
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