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All Journal Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktik dalam Bidang Pendidikan dan Ilmu Geografi Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Serambi Engineering Jurnal Kelautan Nasional
Supriatna Supriatna
Universitas Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Materials Science & Nanotechnology Physics

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Pemodelan Dampak Perubahan Iklim dan WIUP terhadap Potensi Habitat Burung Walik Benjol di Pulau Obi Kartika Pratiwi; Supriatna Supriatna; Masita Dwi Mandini Manessa; Aris Poniman K; Mangapul P. Tambunan
Jurnal Serambi Engineering Vol 8, No 1 (2023): Januari 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i1.5571

Abstract

AbstractOne of the impacts of climate change is the degradation quality of natural habitats of flora and fauna in Indonesia, risking the loss of most of the existing biodiversity. Obi Island as a natural habitat for several endemic species cannot be avoided from the threat of climate change impacts. The existence of mining concessions also can have a direct impact on their habitat potential. The purpose of this study was to analyze the distribution pattern of endemic species under current climatic conditions, synthesize models of the impact of climate change and analyze mining concessions on the distribution of potential habitats of Carunculated Fruit-dove on Obi Island. The occurrence data of Carunculated Fruit-dove and 19 bioclimatic variables are used as input in the process of making a habitat model with MaxEnt. As a result, the habitat potential model of Carunculated Fruit-dove with AUC = 0.955 has a very suitable habitat potential with an area of 66.02 km2 or 2.68%. The climate change in 2041-2060 with 4 different climate scenarios has an impact on the Carunculated Fruit-dove habitat potential model. Mining Business Permit Areas on Obi Island that have been issued until March 2022 amount to 19 locations with a total area of 373.14 km2 which will have a direct or indirect impact on the potential habitat of Carunculated Fruit-dove on Obi Island. 14.17 km2 of 66.67 km2 of potential habitat that is very suitable for Carunculated Fruit-dove will be directly affected by the existence of these mining areas.Keywords: endemic species, mining business permit area, climate change, obi island, maximum entropy
Land cover change analysis in Majalengka Regency using the pan-sharpening method and random forest machine learning algorithm Hari Prayogi; Hafid Setiadi; Supriatna Supriatna; Dewayany Dewayany
Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi Vol 28, No 2 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um017v28i22023p178-192

Abstract

The ever-increasing population has accelerated the need for housing and supporting facilities. Further, this growing number of residences and life support facilities resulted in changes in land cover. For instance, the construction of the West Java International Airport and the increase in the population resulted in land cover changes in Majalengka Regency, Indonesia. This study aims to analyze changes in land cover during 2014, 2018, and 2022 in the Majalengka district using Landsat 8 satellite imagery. We used the pan-sharpening research method, while for the closure classification, we used machine-learning random forest algorithms on the google earth engine platform. The land cover classification classes adopted in this study were natural vegetation, cultivated vegetation, open land, built-up land, and bodies of water. The obtained land cover classification results suggested overall accuracy values of 0.96, 0.94, and 0.93 in 2014, 2018, and 2022 respectively, with kappa index values of 0.950, 0.925, and 0.91667. The results indicate a trend of changes in the land cover in the Majalengka district. From 2014-2022, the trend of increasing land cover area was observed in open land and built-up land, while the decreasing land cover area was found in natural vegetation and cultivated vegetation areas. Using both the pan-sharpening method and the machine learning random forest algorithm, we established images with a more detailed appearance with an outstanding kappa accuracy value (above 0.85). Therefore, the developed algorithm can be used in land cover change mapping analysis.
The Role and Effectiveness of the Ciletuh-Palabuhanratu Geopark in Acceleration Achievement of Sustainable Development Goals Pillars of Economic Development Uswatun Khasanah; Dwi Nowo Martono; Supriatna Supriatna
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.5403

Abstract

Geoparks are developed areas for sustainable development, both from social, economic, and environmental aspects. The Ciletuh-Palabuhanratu Geopark, Sukabumi Regency, West Java Province, which has been recognized as a UNESCO Global Geopark, is believed to be able to contribute to building the local community's economy with the geotourism activities it offers. It is hoped that improving the local economy will help improve the quality and welfare of people's lives. It will accelerate the achievement of SDGs targets in the pillars of economic development, especially SDGs 8. This research aims to analyze the role and effectiveness of the Ciletuh-Palabuhanratu Geopark as an agent for accelerating the achievement of SDG 8. The method used is a combined method, statistical descriptive and qualitative with structured interviews with business actors and tourism community members. The research results show that three indicators have been achieved: increasing the number of tourists, workers, and industrial linkages, but sub-indicators in industrial linkages, namely restaurants and travel services, have yet to be maximized. In general, the Geopark has been proven to function as a means of contributing to the achievement of SDG 8. Still, it requires particular strategies to increase growth in economic sub-indicators to achieve the SDG 8.
Pemodelan Dampak Perubahan Iklim dan WIUP terhadap Potensi Habitat Burung Walik Benjol di Pulau Obi Kartika Pratiwi; Supriatna Supriatna; Masita Dwi Mandini Manessa; Aris Poniman K; Mangapul P. Tambunan
Jurnal Serambi Engineering Vol 8, No 1 (2023): Januari 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i1.5571

Abstract

AbstractOne of the impacts of climate change is the degradation quality of natural habitats of flora and fauna in Indonesia, risking the loss of most of the existing biodiversity. Obi Island as a natural habitat for several endemic species cannot be avoided from the threat of climate change impacts. The existence of mining concessions also can have a direct impact on their habitat potential. The purpose of this study was to analyze the distribution pattern of endemic species under current climatic conditions, synthesize models of the impact of climate change and analyze mining concessions on the distribution of potential habitats of Carunculated Fruit-dove on Obi Island. The occurrence data of Carunculated Fruit-dove and 19 bioclimatic variables are used as input in the process of making a habitat model with MaxEnt. As a result, the habitat potential model of Carunculated Fruit-dove with AUC = 0.955 has a very suitable habitat potential with an area of 66.02 km2 or 2.68%. The climate change in 2041-2060 with 4 different climate scenarios has an impact on the Carunculated Fruit-dove habitat potential model. Mining Business Permit Areas on Obi Island that have been issued until March 2022 amount to 19 locations with a total area of 373.14 km2 which will have a direct or indirect impact on the potential habitat of Carunculated Fruit-dove on Obi Island. 14.17 km2 of 66.67 km2 of potential habitat that is very suitable for Carunculated Fruit-dove will be directly affected by the existence of these mining areas.Keywords: endemic species, mining business permit area, climate change, obi island, maximum entropy
Sebaran dan Kontaminasi Logam Berat Nikel (Ni) pada Sedimen di Pesisir Desa Tapuemea dan Tapunggaya, Kabupaten Konawe Utara, Sulawesi Tenggara Mohammad Afdhal Adidharma; Noverita Dian Takarina; Supriatna Supriatna; Emiyarti Emiyarti; A. Ginong Pratikino
Jurnal Kelautan Nasional Vol 18, No 3 (2023): DESEMBER
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkn.v18i3.13234

Abstract

Besarnya potensi Nikel di Sulawesi Tenggara berefek pada tingginya aktifitas eksploitasi tambang nikel di wilayah ini, khususnya di Desa Tapuemea dan Tapunggaya, Kecamatan Molawe Kabupaten Konawe Utara. Metode penambangan terbuka (Opet-pit mining) yang digunakan di wilayah ini, menyebabkan masuknya material padat yang membawa unsur logam berat dari daratan ke perairan. Penelitian ini bertujuan untuk mengetahui konsentrasi, sebaran dan tingkat kontaminasi logam berat nikel dalam sedimen di Perairan Desa Tapuemea dan Tapunggaya. Pengambilan data dilakukan pada Bulan Maret 2020 di pesisir Desa Tapuemea dan Desa Tapunggaya, Kecamatan Molawe. Sampel sedimen dianalisis menggunakan metode Spektrofotometri Serapan Atom (SSA). Hasil penelitian menunjukkan bahwa konsentrasi logam berat nikel dalam sedimen berkisar antara 3,922 hingga 34,08 mgkg-1, dan hasil tersebut dikategorikan cukup tercemar menurut US EPA-2004. Konsentrasi Ni tertinggi berada di dekat area pertambangan dan jetty aktif untuk kegiatan bongkar muat material tambang, dan kemudian konsentrasinya menurun secara linear ke arah timur hingga mencapai konsentrasi terendah di muara sungai. Hasil penilaian tingkat pencemaran indeks geoakumulasi (Igeo) dan faktor kontaminasi (CF) menunjukkan bahwa sampel sedimen berada dalam kisaran tercemar sedang dan tercemar sedang hingga berat.
Co-Authors A. Ginong Pratikino Aris Poniman K Dewayany Dewayany Emiyarti Emiyarti Hari Prayogi Kartika Pratiwi Mangapul P. Tambunan Martono, Dwi Nowo Masita Dwi Mandini Manessa Mohammad Afdhal Adidharma Noverita Dian Takarina Dian Takarina Setiadi, Hafid Uswatun Khasanah