File:Gwaith cwympo coed arloesol yn llwyddo i ddiogelu mwyngloddiau aur hynafol.webm

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Original file(WebM audio/video file, VP9/Opus, length 2 min 24 s, 1,920 × 1,080 pixels, 9.61 Mbps overall, file size: 165.16 MB)

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Cymraeg: Mae ymgyrch cwympo coed arloesol a drefnwyd i symud coed heintus gan ddiogelu cloddfeydd Rhufeinig hynafol yng Nghoedwig Mwyngloddiau Aur Dolaucothi, de Cymru, wedi cael ei chwblhau'n llwyddiannus.

Mae Coedwig Mwyngloddiau Aur Dolaucothi yn cael ei phrydlesu i Cyfoeth Naturiol Cymru gan yr Ymddiriedolaeth Genedlaethol ac mae'n rhan o'r mwyngloddiau aur Rhufeinig cyfagos. Mae'n ardal ffrwythlon o ran archaeoleg, gyda Henebion Cofrestredig dynodedig gan gynnwys dyfrffosydd Rhufeinig, tanciau dŵr, cafnau golchi a chloddfeydd yn croesi’r safle.

Cafodd ardal naw hectar o faint yn y goedwig a reolir gan CNC ei heintio gan glefyd coed llarwydd (Phytophthora Ramorum) ac roedd angen cael gwared â’r coed. Roeddent yn sefyll yn farw ac yn fygythiad i ddiogelwch aelodau'r cyhoedd a'r nodweddion archaeolegol.

Roedd nifer o heriau’n perthyn i’r safle gan nad oedd mynediad i gymryd pren o'r goedwig ac roedd yn hollbwysig gwneud yn siŵr na fyddai’r nodweddion hanesyddol pwysig yn cael eu difrodi ar ddamwain gan beiriannau trwm.

Gweithiodd Cyfoeth Naturiol Cymru yn agos gyda Cadw, yr Ymddiriedolaeth Genedlaethol, Ymddiriedolaeth Archaeolegol Dyfed a thirfeddianwyr lleol i ddeall ble roedd yr olion ac i weithio o'u cwmpas fel bod modd eu gwarchod.

Aeth Thompson Brothers Timber Harvesting ati i gwympo’r coed a llunio system arloesol ar gyfer torri a symud y pren. Cafodd coed eu torri’n ddarnau mân a'u hanfon mewn sypiau ar draws y tir ar gebl sawl metr uwchben y gweithfeydd Rhufeinig, i lawr y bryn at ardal lanio islaw.

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Source YouTube: Gwaith cwympo coed arloesol yn llwyddo i ddiogelu mwyngloddiau aur hynafol – View/save archived versions on archive.org and archive.today
Author Natural Resources Wales / Cyfoeth Naturiol Cymru

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Date/TimeThumbnailDimensionsUserComment
current08:45, 6 December 20222 min 24 s, 1,920 × 1,080 (165.16 MB)Llywelyn2000 (talk | contribs)Imported media from https://www.youtube.com/watch?v=aN0fTXLQbV0

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Format Bitrate Download Status Encode time
VP9 1080P 5.13 Mbps Completed 08:59, 6 December 2022 13 min 41 s
Streaming 1080p (VP9) 5.03 Mbps Completed 14:23, 7 February 2024 5.0 s
VP9 720P 2.63 Mbps Completed 08:53, 6 December 2022 8 min 8 s
Streaming 720p (VP9) Not ready Unknown status
VP9 480P 1.37 Mbps Completed 08:51, 6 December 2022 5 min 33 s
Streaming 480p (VP9) 1.26 Mbps Completed 18:41, 14 March 2024 3.0 s
VP9 360P 737 kbps Completed 08:50, 6 December 2022 4 min 28 s
Streaming 360p (VP9) Not ready Unknown status
VP9 240P 420 kbps Completed 08:49, 6 December 2022 3 min 19 s
Streaming 240p (VP9) 315 kbps Completed 12:23, 22 December 2023 2.0 s
WebM 360P 573 kbps Completed 08:48, 6 December 2022 2 min 27 s
Streaming 144p (MJPEG) 833 kbps Completed 10:46, 14 November 2023 19 s
Stereo (Opus) 103 kbps Completed 17:27, 23 November 2023 4.0 s
Stereo (MP3) 128 kbps Completed 04:13, 9 November 2023 5.0 s

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