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KEANEKARAGAMAN PALEM DI PULAU MENDANAU, BELITUNG Andayani, Deri; Nurtjahya, Eddy; Rustiami, Himmah
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The study of palm in the Mendanau Island, Belitung was conducted in March 2017. There were 11 palm genera consisting of 14 species: Areca catechu, Calamus densiflorus, C. erinaceus, C. scipionum, Calamus sp., Caryota mitis, Daemonorops melanochaetes, Eleiodoxa conferta, Metroxylon sagu, Oncosperma tigillarium, Orania sylvicola, Pinanga malaiana, Plectocomia elongata, and Plectocomiopsis geminiflora. Based on the study of specimens deposited at Herbarium Bogoriense (BO), there were only four species recorded from Belitung Island, namely: Calamus erinaceus, C. scipionum, Eleiodoxa conferta, and Plectocomiopsis geminiflora. One species Calamus densiflorus is a new specimen collection for BO.

Anatomical and Physiological Characteristics of Reclamation Plant on the Post-Mining Land in Riding Panjang, Bangka Nurtjahya, Eddy; Juairiah, Lina
Teknologi Indonesia Vol 35, No 3 (2012)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jti.v35i3.268

Tin mining leaves disturbed land with sandy texture, damages natural drainage and habitats, and very low water holding capacity. The enrichment of species selection criteria for revegetating tin tailing with anatomical and physiological characters is needed to facilitate decision maker to select local species suitable for revegetation and to meet the economical need of the local people in post tin mining era. Besides exotic species, a handful of local tree species was planted recently. The need of more local species is especially needed to support biodiversity in mined land. Study of some leaf anatomical and root physiological characters of twelve months seedlings of leban(Vitex pinnata L-Verbenaceae) and ubak (Syzygium grande (Wight) Walp.Myrtaceae) planted in unmined land and tin-mined land in Bangka Island was conducted using wholemount and paraffi n methods. The fi ndings showedthat anatomical and physiological parameters of V. pinnata are more signifi cant than those of S. grande. Therefore, V. pinnata is more adaptive grown on tin tailing than S. grande.

The Amelioration of Post Tin Mining Sand Tailing Medium with Chicken Manure for Pepper Cultivation Ismed Inonu; Riwan Kusmiadi; Ayu Yuliana; Eddy Nurtjahya
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 9 No. 1 (2020): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Inonu I, Kusmiadi R, Yuliana A, Nurtjahya E. 2020. The amelioration of post tin mining sand tailing medium with chicken manure for pepper cultivation. Jurnal Lahan Suboptimal: Journal of Suboptimal LandsÂ 9(1): 31-40.Â Pepper cultivation in tin mining sand tailings requires the amelioration of organic matter to improve soil characteristics. The paper investigates the effect of chicken manure dosage on the growth of three pepper cultivars in sand tailing medium. This study was conducted on April-August 2016 at Experiment Station of Universitas Bangka Belitung, Balunijuk Village, Bangka Island. This study was arranged in a completely randomized design with two factors and three replications. The first factor was the dosage of chicken manure (5 kg; 6 kg; 7 kg/plant). The second factor was pepper cultivars (Lampung Daun Lebar; Lampung Daun Kecil; Merapin). The. result of the analysis of variance showed that the treatment of chicken manure dosage significantly affected only on total leaf area. The treatment of pepper cultivars significantly affected the total of chlorophyll, root dry weight, and shoot dry weight. There was no interaction between chicken manure dosage and pepper cultivar. Pepper cv. Lampung Daun Lebar tends to grow better than the other cultivars in the sand tailing medium.

Rona Awal Lingkungan Calon Tapak PLTN Sebagin, Bangka Selatan Eddy Nurtjahya; Kartika Kartika; Ismed Inonu; Franto Franto
Jurnal Forum Nuklir JFN VOL 11 NO 2 NOVEMBER 2017
Publisher : BATAN

Evaluasi tapak adalah penting dalam penentuan penerimaan tapak PLTN, dan kelayakan calon tapak PLTN di Pulau Bangka dipublikasi tahun 2013. Penelitian rona awal lingkungan dari calon tapak Sebagin, Kabupaten Bangka Selatan ini bertujuan mendokumentasikan data dasar bagi diskusi tentang keberlanjutan pembangunan PLTN di masa mendatang. Penelitian ini dilakukan melalui wawancara masyarakat di 53 desa / kelurahan di Kabupaten Bangka Selatan, Bangka Tengah, dan Bangka untuk memperoleh data lama aktivitas dan laju inhalasi penduduk, produksi pertanian dan peternakan beserta luas tanam, umur panen, frekuensi penyiraman, jangka waktu tanam dan hold-up time, konsumsi karbohidrat, sayuran, daging, ikan, telur, susu, minyak goreng, kebutuhan air. Selain itu, data dilengkapi dengan hasil studi literatur dari berbagai sumber. Wilayah studi berupa lahan pertanian, berpenduduk 160.290 jiwa, dengan kelompok umur di atas 15 tahun 78,6% dan laju pertumbuhan 3,14%. Dari topografi, Sebagin dipandang aman dari potensi banjir akibat tsunami dan luapan sungai. Sebagian besar kebutuhan beras dan sebagian sayuran dan sebagian besar minyak goreng dipasok dari luar provinsi. Separuh kebutuhan buah berasal dari luar kabupaten. Waktu tanam berbagai tanaman pertanian rata-rata 101 hari, dengan frekuensi tanam 2 kali setahun dan hold-up time 1-4 hari. Berbeda dengan daging ayam, sebagian besar daging sapi dan kambing dipasok dari luar provinsi, sementara sebagian kebutuhan telur dan daging ayam buras disuplai dari luar kabupaten. Sebagian besar kebutuhan ikan laut berasal dari tangkapan di provinsi. Sumur adalah sumber air minum utama, yang memiliki tinggi muka air tanah bervariasi sekitar 7-15 m. Irigrasi lebih bertumpu pada air hujan, dan air kolong bekas penambangan timah. Dosis maksimum radioaktif diperkirakan terletak di daerah huni 4 km sebelah Utara Sebagin, sementara konsentrasi maksimum terletak di Selat Bangka. Dosis radioaktif efektif tahunan maksimum untuk kelompok kritis adalah 1,71 µSv/a, jauh di bawah batas lepasan 300 µSv/a. Hasil pengukuran dosis radiasi latar bervariasi antara 0,64 mSv dan 2,25 mSv.

KEANEKARAGAMAN PALEM DI PULAU MENDANAU, BELITUNG Deri Andayani; Eddy Nurtjahya; Himmah Rustiami
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i3.3413

The study of palm in the Mendanau Island, Belitung was conducted in March 2017. There were 11 palm genera consisting of 14 species: Areca catechu, Calamus densiflorus, C. erinaceus, C. scipionum, Calamus sp., Caryota mitis, Daemonorops melanochaetes, Eleiodoxa conferta, Metroxylon sagu, Oncosperma tigillarium, Orania sylvicola, Pinanga malaiana, Plectocomia elongata, and Plectocomiopsis geminiflora. Based on the study of specimens deposited at Herbarium Bogoriense (BO), there were only four species recorded from Belitung Island, namely: Calamus erinaceus, C. scipionum, Eleiodoxa conferta, and Plectocomiopsis geminiflora. One species Calamus densiflorus is a new specimen collection for BO.

Systematics and Ethnobiology of Spineless Leaf Common Pandanus (Pandanus tectorius Parkinson Ex Du Roi; Pandanaceae) from Kelapan Island, Bangka and Belitung, Indonesia Sela Agustika; Santiago Santiago; Eddy Nurtjahya; Ary Prihardhyanto Keim; Nissa Arifa; Muhamad Nikmatullah; Ida Farida Hasanah; Wawan Sujarwo
Journal of Tropical Ethnobiology Vol. 3 No. 2 (2020): July 2020
Publisher : The Ethnobiological Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46359/jte.v3i2.42

Pandanus tectorius Parkinson ex Du Roi forma integrifolius S. Agustika, S. Santiago and A.P. Keim is a new forma described from Kelapan Island in the Bangka and Belitung Province, Indonesia. This new forma is identified through the distinctive morphological character of spineless leaf margin. These facts are important to be explained related to the unique morphological phenomenon recently discovered in a small population of P. tectorius found in one of the small islands around Bangka Island. The result showed that the phenomenon of spineless leaves in P. tectorius found in Kelapan Island is related with the absence of predator, especially frugivore that consume the fruit of the species. In other words, the complete absence of bats in Kelapan Island apparently triggers the individuals of P. tectorius in the island to stop developing the spines in the leaf margin in order to protect the fruits from predators. The people of Kelapan Island harvest the leaves of P. tectorius for making mats.

NERACA EKOLOGI PENAMBANGAN TIMAH DI PULAU BANGKA Studi Kasus Pengalihan Fungsi Lahan di Ekosistem Darat Eddy Nurtjahya; Fournita Agustina; Wike Ayu Eka Putri
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 14 No 1 (2008): December 2008
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/296

Unequal understanding among tin mining stake holders on trade regulation often triggered social conflict and therefore it was suggested to build political will especially among national, provincial, and regencial/municipal government levels. One important effort to bring out political will is presenting an independent and scientific study on comparision between socio-economic and environmental impact of tin mining. Purposive sampling was conducted to inconventional miners at reserved forest at Lubuk Kelik hamlet, pepper farmers at Silip village, and rubber farmers at Bencah village. Tin mining changed soil properties and microclimate, reduced vegetation composition and structure, arbuscular mycorrhizal fungi, phosphate solubilizing microorganism, ants, and Collembola population. Land conversion increased and contributed up to 95% income. The welfare improvement, however, was apparent as the recovery cost was neglected by inconventional tin miners, and only pepper land conversion showed benefit. Inconventional tin mining regulation needs improvement in order to increase land use efficiency and recovery cost. Understanding on ecological balance of more people and for more sustainable social welfare should be improved as well.

Jenis-jenis Anggrek (Orchidaceae) di Hutan Rawa Gambut Kabupaten Belitung. Selviana .; Eddy Nurtjahya; Diah Sulistiarini
Floribunda Vol. 6 No. 2 (2019)
Publisher : PTTI

Selviana, Eddy Nurtjahya & Diah Sulistiarini. 2019. Jenis-jenis Anggrek (Orchidaceae) di Hutan Rawa Gambut Kabupaten Belitung. Floribunda 6(2): 72–80. — Anggrek salah satu tumbuhan yang memiliki nilai komersial tinggi. Data keanekaragaman anggrek di Pulau Belitung, khususnya di hutan rawa gambut Kabupaten Belitung belum pernah dilakukan. Penelitian ini bertujuan untuk mengidentifikasi jenis-jenis anggrek alam yang ada di hutan rawa gambut Kabupaten Belitung. Penelitian dilakukan di hutan rawa gambut, Kabupaten Belitung dengan 3 lokasi. Identifikasi dilakukan di Herbarium Bangka Belitungense dan Herbarium Bogoriense (BO), Pusat Penelitian Biologi-LIPI, Cibinong. Berdasarkan hasil penelitian, ditemukan 9 jenis anggrek dari 6 marga, terdiri dari 6 jenis anggrek epifit, 3 jenis anggrek terestrial. Jenis yang paling banyak dijumpai di daerah tersebut adalah dari marga Bulbophyllum Thou., Dendrobium Sw. dan Plocoglottis Blume, serta terdapat satu anggrek rekaman baru yaitu jenis Thecopus secunda.

STRUKTUR KOMUNITAS VEGETASI MANGROVE DI PESISIR UTARA PULAU MENDANAU DAN PULAU BATU DINDING, KECAMATAN SELAT NASIK KABUPATEN BELITUNG irma Akhrianti; Franto Franto; Eddy Nurtjahya; Indra Ambalika Syari
Akuatik: Jurnal Sumberdaya Perairan Vol 12 No 1 (2018): Akuatik: Jurnal Sumberdaya Perairan
Publisher : Department of Aquatic Resources Management, Faculty of Agriculture, Fisheries, and Biology, University of Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/akuatik.v12i1.856

Mendanau Island and Batu Dinding Island are part of small island groups that have a high diversity and density of mangroves. Based on administratively, Mendanau Island is located in the coastal area of Simpang Pesak District, Belitung Regency, which consist of one large island (Mendanau Island) and 1 small island (Batu Dinding Island). The lack of data about potential, diversity, and community structure of mangroves on the north coast of Mendanau Island and Batu Dinding Island, therefore this research is needed as a database for planning, sustainability management of mangroves at the coastal area and small island. The data of mangrove vegetation was taken by purposive sampling method, with using line transect plot (LTP). Ilustration of sampling design is each line transect have 3 plot / kuadratic transect sized 10 m x 10 m (capling), 5 m x 5m (sapling), 1m x 1 m (seedling). The result showed that there are 12 (twelve) mangrove species were found: jenis S. alba, R. apiculata, R. stylosa, R. mucronata, B. gymnorhiza, X. granatum, L. littorea. S. hydrophyllacea, S. taccada, H. tiliaceus, Pandanus, dan I. pes-caprae. Mangrove community structure and mangrove condition on the North Coast of Mendanau Island, at several observation stations, was damaged (poor conditions), while the status of the mangrove conditions on Pulau Batu Dinding was still relatively good

Kondisi Komunitas Mangrove di Pesisir Utara Pulau Mendanau dan Pulau Batu Dinding, Kabupaten Belitung Irma Akhrianti; Eddy Nurtjahya; Franto Franto; Indra Ambalika Syari
Akuatik: Jurnal Sumberdaya Perairan Vol 13 No 1 (2019): AKUATIK : Jurnal Sumberdaya Perairan
Publisher : Department of Aquatic Resources Management, Faculty of Agriculture, Fisheries, and Biology, University of Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1109.68 KB)

Mendanau Island and Batu Dinding Island are part of small island groups that have a high diversity and density of mangroves. Based on administratively, Mendanau Island is located in the coastal area of Simpang Pesak District, Belitung Regency, which consist of one large island (Mendanau Island) and 1 small island (Batu Dinding Island). The lack of data about potential, diversity, and community structure of mangroves on the north coast of Mendanau Island and Batu Dinding Island, therefore this research is needed as a database for planning, sustainability management of mangroves at the coastal area and small island. The data of mangrove vegetation was taken by purposive sampling method, with using line transect plot (LTP). Ilustration of sampling design is each line transect have 3 plot / kuadratic transect sized 10 m x 10 m (capling), 5 m x 5m (sapling), 1m x 1 m (seedling). The result showed that there are 12 (twelve) mangrove species were found: jenis S. alba, R. apiculata, R. stylosa, R. mucronata, B. gymnorhiza, X. granatum, L. littorea. S. hydrophyllacea, S. taccada, H. tiliaceus, Pandanus, dan I. pes-caprae. Mangrove community structure and mangrove condition on the North Coast of Mendanau Island, at several observation stations, was damaged (poor conditions), while the status of the mangrove conditions on Pulau Batu Dinding was still relatively good.

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