a river meander through wetlands as seen from above.

Biogeocemeg priddoedd, gwlyptiroedd ac amgylcheddau morol

Rydym yn gwneud ymchwil i'r hyn sy'n dylanwadu ar y broses cylchredu maetholion a llygryddion mewn priddoedd, gwlyptiroedd, dyfroedd croyw a chynefinoedd morol ledled y byd.

Ar y dudalen hon:
Earth

Ein Hymchwil

Ein prif ffocws yw deall tynged, llif a thrawsffurfiad maetholion a llygryddion mewn gwahanol ecosystemau a rheoliad y prosesau hyn gan ficro-organebau, planhigion ac anifeiliaid. 

Rydym yn gweithio ym mhrif fïomau’r byd, o'r Arctig i goedwigoedd glaw trofannol. Rydym hefyd yn astudio'r amgylcheddau mwyaf eithafol ar y Ddaear i ddeall sut mae bioleg yn gwthio ffiniau bywyd. Mae ein hymchwil gymhwysol yn mynd i’r afael â’r bygythiadau mwyaf sy’n wynebu ein hamgylchedd a’n hecosystemau ledled y byd.

Lle rydym yn gweithio

Mae ein lleoliad unigryw ar garreg drws Parc Cenedlaethol Eryri yn rhoi cyfle gwych i ddeall llif maetholion a llygryddion o ddalgylchoedd afonydd hyd yr arfordir. Rydym hefyd yn cydweithio ag amrywiaeth eang o wyddonwyr eraill ledled y byd. Mae ein hymchwil yn dilyn pob trywydd posibl.

Y maetholion a'r llygryddion rydym yn astudio 

Yng nghyd-destun newid hinsawdd, defnydd cynaliadwy o dir a llygredd dŵr, mae llawer o’n gwaith yn canolbwyntio ar gylchredau carbon, ffosfforws a nitrogen. Rydym hefyd yn astudio llif metelau trwm ac elfennau prinfwynau mewn ecosystemau pridd, afonydd a llynnoedd, yn enwedig mewn perthynas â gweithgareddau mwyngloddio a gwerthuso llwyddiant mesurau adfer. Ategir y gwaith hwn gan ymchwil ar ddiraddiad, tynged ac effaith llygryddion organig sy'n dod i'r amlwg yn yr amgylchedd, gan gynnwys plastigion, cemegau sy’n ymyrwyr endocrin a chynhyrchion fferyllol.

Defaid yn crwydro Parc Cenedlaethol Eryri
A sea campion on the coast.
Y gludlys arfor yn ei safle naturiol ar yr arfordir.

Cyfleusterau labordy a chyfleusterau maes rhagorol

Mae hyn yn cynnwys gorsaf faes arbrofol Henfaes sydd wedi’i lleoli ger y Brifysgol, ac sy’n caniatáu astudiaethau integredig o arfordir Môr Iwerddon i fynyddoedd Eryri. Gerllaw, mae gennym hefyd ddalgylch 'Labordy Byw' afon Conwy, sef parth arfordirol ac aberol sy'n ganolbwynt i'n hastudiaethau ar newid defnydd tir ac effaith llygredd amaethyddol a threfol. Mae gennym hefyd wlyptiroedd, coedwigoedd a gweithfeydd trin dŵr gwastraff i gynnal arbrofion ynddynt. Dramor mae gennym safleoedd maes tymor hir mewn ecosystemau pegynol, coedwigoedd trofannol/boreal/tymherus, anialwch, glaswelltiroedd ac amrywiaeth eang o ecosystemau amaethyddol.

Mae gennym labordai maes cludadwy a rhwydweithiau synwyryddion ar gyfer astudio ansawdd dŵr ac allyriadau nwyon tŷ gwydr (CO2, N2O, CH4). Ategir hyn gan ein cyfleusterau dadansoddol canolog sy'n cynnwys yr offer diweddaraf ar gyfer nodweddu a meithrin cymunedau microbaidd (e.e., GridIon, qPCR, dPCR, NextSeq, MiSeq, RABIT, Bioadweithyddion, didolwr cell Sysmex), olrhain isotopau (e.e., 3H, 13C, 14C, 15N, 32P, 33P, 35S), dadansoddiad elfennaidd (e.e., TXRF, pXRF, ICP, Dionex) a dadansoddi llygryddion organig a metabolomeg (e.e., Orbitrap LC-MS/MS, Synapt G2-Si IMS LC-MS/MS, Xevo TQ-XS UPLC, HPLC). Cefnogir ein biowybodeg gan Uwchgyfrifiadura Cymru.
 

Newyddion diweddaraf

Gweld Mwy

Ein hymchwilwyr

Dysgwch fwy am rai o'n hymchwilwyr. Mae rhestr lawn o staff a myfyrwyr isod.

Llun aelod o staff, Ewa Krzyszczyk, yn sefyll ar gwch yn dal camerâu

Dr Ewa Krzyszczyk

Swolegydd morol yw Ewa sydd â diddordeb mewn ymddygiad a chadwraeth mamaliaid y môr, pysgod, ac amrywiaeth o ecosystemau morol (riffiau, mangrofau, morwellt).

Llun aelod o staff, John Healy, yn cymryd mesuriadau o foncyff coeden

Yr Athro John Healey

Ecolegydd coedwigoedd yw John sy'n gweithio i sicrhau rheolaeth gynaliadwy, cadwraeth ac adfer adnoddau coedwigoedd.
Llun aelod o staff, Farnon Ellwood yn dringo ystol

Dr Farnon Ellwood

Ecolegydd cymunedol yw Farnon sy'n arbenigo mewn datblygu fframweithiau damcaniaethol i’w defnyddio i warchod bioamrywiaeth drofannol trwy hysbysu arferion rheoli cynaliadwy.

Ymchwilwyr Biogeocemeg priddoedd, gwlyptiroedd ac amgylcheddau morol

Ein projectau

Dysgwch am ein projectau cyfredol drwy ddarllen ein tudalennau project a’n blogiau:

Tri ymchwilydd yn paratoi treialon tomenwellt plastigau mewn caeau

Microblastigion
Defnyddir rhwyd i hel microplastigion yn yr afon Conwy

Fectorau plastig
Ymchwilydd yn gwisgo mwgwd gwyneb a menyg glas yn yn cymryd samplau am ddadansoddiad firaol a phlastigau mewn gwaith gwastraff dŵr trefol

Dŵr gwastraff

Cyhoeddiadau diweddaraf

Caiff detholiad o gyhoeddiadau diweddar ymchwilwyr y grŵp Biogeocemeg Priddoedd, Gwlyptiroedd, ac Amgylcheddau Morol eu rhestru yma, ond ar gyfer yr holl gyhoeddiadau diweddaraf, darllenwch dudalennau’r ymchwilwyr unigol trwy ddilyn y dolenni uchod.

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