Dynamics of the aeolian landform at the coastal geosite of Parangtritis sand dune area, Yogyakarta
In 2014, Kelud, an active volcano in East Java, ejected ashes (hereafter termed KA; Kelud ash) that reportedly reached as far as Central Java and the Special Region of Yogyakarta (DIY). The KA deposits are observable in, among others, the coastal sand dune area in Parangtritis. Due to the active aeo...
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| Format: | Article |
| Language: | English |
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University of Brawijaya
2024-04-01
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| Series: | Journal of Degraded and Mining Lands Management |
| Subjects: | |
| Online Access: | https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/16470 |
| _version_ | 1797230743172153344 |
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| author | Mukhamad Ngainul Malawani Djati Mardiatno Bachtiar Wahyu Mutaqin Indranova Suhendro Nicky Setiawan Fajrun Wahidil Muharram Iwan Rhosadi |
| author_facet | Mukhamad Ngainul Malawani Djati Mardiatno Bachtiar Wahyu Mutaqin Indranova Suhendro Nicky Setiawan Fajrun Wahidil Muharram Iwan Rhosadi |
| author_sort | Mukhamad Ngainul Malawani |
| collection | DOAJ |
| description | In 2014, Kelud, an active volcano in East Java, ejected ashes (hereafter termed KA; Kelud ash) that reportedly reached as far as Central Java and the Special Region of Yogyakarta (DIY). The KA deposits are observable in, among others, the coastal sand dune area in Parangtritis. Due to the active aeolian process, the KA layers can be found at different depths five years after the eruption. Thus, the KA can be used as a marker of the post-2014 aeolian activities at the Parangtritis dune, which was once classified as a degraded land and later recognized as a coastal geosite, ultimately allowing us to calculate the volume and sand transport rate. The research surveys performed at 25 points discovered volcanic ash layers at 1 cm to 26 cm below the surface. At some observed points, the ash deposits were found on the surface and continuously transported. This research observed an area of 60,000 m2 with an average of 8.5 cm thick sand layers lying above the KA layer. Based on the calculation, the total volume of the transported sand at the Parangtritis sand dune from 2014 to 2019 was approximately 5,100 m3. This volume is considerably small owing to various obstacles in the transport zones. Based on the five-year dynamic of the sand dune, this study suggested that restoration needs to be conducted immediately particularly in eliminating vegetation barriers to maintain the sediment balance (erosion-transport-sedimentation) of the coastal sand dune area. |
| first_indexed | 2024-04-24T15:33:20Z |
| format | Article |
| id | doaj.art-a598a71731c4416eb2b506e862ce1977 |
| institution | Directory Open Access Journal |
| issn | 2339-076X 2502-2458 |
| language | English |
| last_indexed | 2024-04-24T15:33:20Z |
| publishDate | 2024-04-01 |
| publisher | University of Brawijaya |
| record_format | Article |
| series | Journal of Degraded and Mining Lands Management |
| spelling | doaj.art-a598a71731c4416eb2b506e862ce19772024-04-02T03:15:34ZengUniversity of BrawijayaJournal of Degraded and Mining Lands Management2339-076X2502-24582024-04-011135839584710.15243/jdmlm.2024.113.583916472Dynamics of the aeolian landform at the coastal geosite of Parangtritis sand dune area, YogyakartaMukhamad Ngainul Malawani0https://orcid.org/0000-0003-2090-7403Djati Mardiatno1https://orcid.org/0000-0001-7401-1886Bachtiar Wahyu Mutaqin2https://orcid.org/0000-0002-7667-8411Indranova Suhendro3https://orcid.org/0000-0002-9280-9565Nicky Setiawan4Fajrun Wahidil Muharram5https://orcid.org/0000-0001-9937-4739Iwan Rhosadi6https://orcid.org/0000-0002-8599-976XDepartment of Environmental Geography, Faculty of Geography, Universitas Gadjah Mada, Indonesia Department of Environmental Geography, Faculty of Geography, Universitas Gadjah Mada, Indonesia Department of Environmental Geography, Faculty of Geography, Universitas Gadjah Mada, Indonesia Department of Environmental Geography, Faculty of Geography, Universitas Gadjah Mada, Indonesia Department of Environmental Geography, Faculty of Geography, Universitas Gadjah Mada, Indonesia Parangtritis Geomaritime Science Park, Bantul, IndonesiaDoctoral Program in Environmental Science, Graduate School, Universitas Gadjah Mada, Indonesia In 2014, Kelud, an active volcano in East Java, ejected ashes (hereafter termed KA; Kelud ash) that reportedly reached as far as Central Java and the Special Region of Yogyakarta (DIY). The KA deposits are observable in, among others, the coastal sand dune area in Parangtritis. Due to the active aeolian process, the KA layers can be found at different depths five years after the eruption. Thus, the KA can be used as a marker of the post-2014 aeolian activities at the Parangtritis dune, which was once classified as a degraded land and later recognized as a coastal geosite, ultimately allowing us to calculate the volume and sand transport rate. The research surveys performed at 25 points discovered volcanic ash layers at 1 cm to 26 cm below the surface. At some observed points, the ash deposits were found on the surface and continuously transported. This research observed an area of 60,000 m2 with an average of 8.5 cm thick sand layers lying above the KA layer. Based on the calculation, the total volume of the transported sand at the Parangtritis sand dune from 2014 to 2019 was approximately 5,100 m3. This volume is considerably small owing to various obstacles in the transport zones. Based on the five-year dynamic of the sand dune, this study suggested that restoration needs to be conducted immediately particularly in eliminating vegetation barriers to maintain the sediment balance (erosion-transport-sedimentation) of the coastal sand dune area.https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/16470aeoliancoastal duneconservationgeositevolcanic ash |
| spellingShingle | Mukhamad Ngainul Malawani Djati Mardiatno Bachtiar Wahyu Mutaqin Indranova Suhendro Nicky Setiawan Fajrun Wahidil Muharram Iwan Rhosadi Dynamics of the aeolian landform at the coastal geosite of Parangtritis sand dune area, Yogyakarta Journal of Degraded and Mining Lands Management aeolian coastal dune conservation geosite volcanic ash |
| title | Dynamics of the aeolian landform at the coastal geosite of Parangtritis sand dune area, Yogyakarta |
| title_full | Dynamics of the aeolian landform at the coastal geosite of Parangtritis sand dune area, Yogyakarta |
| title_fullStr | Dynamics of the aeolian landform at the coastal geosite of Parangtritis sand dune area, Yogyakarta |
| title_full_unstemmed | Dynamics of the aeolian landform at the coastal geosite of Parangtritis sand dune area, Yogyakarta |
| title_short | Dynamics of the aeolian landform at the coastal geosite of Parangtritis sand dune area, Yogyakarta |
| title_sort | dynamics of the aeolian landform at the coastal geosite of parangtritis sand dune area yogyakarta |
| topic | aeolian coastal dune conservation geosite volcanic ash |
| url | https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/16470 |
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