Bamboo Diversity in Sumba Island

Widjaja, Elizabeth A.; Karsono, Karsono

doi:10.13057/biodiv/d060205

Cited by 8 publications

(8 citation statements)

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“…This information was used to produce a distribution map of each species. Observation of morphological characteristics and identification referred to several references in the literature (Widjaja, 1987(Widjaja, , 1997(Widjaja, , 2001aWidjaja and Karsono, 2005). The important characteristics observed for identifying bamboo species were the color of the bamboo shoots; the branching system, the culm sheath (including auricle, blade, bristle and ligule) and the leaf (including auricle, bristle, ligule and leaf blade).…”

Section: Sampling Identification and Observation Of Morphological Cha...mentioning

confidence: 99%

“…6A, Gigantochloa was found mostly in residential areas, dry land agriculture and rice fields because it is often cultivated for many benefits (Widjaja, 2019). In addition, the presence of Gigantochloa in bush areas, transmigration areas, water bodies and even mining areas indicated that Gigantochloa is a cultivated bamboo genus that can live in various areas (Widjaja and Karsono, 2005). Response curve to warmest quarter precipitation in Fig.…”

Section: Responses Of Variable To Suitabilitymentioning

confidence: 99%

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Diversity, ecology and habitat suitability of Gigantochloa in Central Sumatra

2023

ANRES

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Importance of the work: Sumatra Island, with 76 species of bamboo, is the center of bamboo biodiversity in Indonesia. Objectives: Gigantochloa species diversity was investigated and environmental factors analyzed to create prediction maps of species distribution and habitat suitability. Materials & Methods:The Gigantochloa samples were collected from various habitats in Central Sumatra. The horizontal distribution was mapped using the QGIS 3.20.2 software, while the vertical distribution was analyzed using the Past 4.03 software. Correlations between species and environmental factors were subjected to canonical correspondence analysis using the CANOCO 4.5 software and habitat suitability was analyzed using the MaxEnt package. Results: Fourteen species of Gigantochloa were identified from Central Sumatra, one of which was G. kuring, which is endemic to Sumatra. Gigantochloa was distributed from the lowlands up to 1,367 m above sea level. The distribution of Gigantochloa was influenced mostly by soil pH, soil moisture, wind and light. Analysis using MaxEnt indicated habitat that was suitable for Gigantochloa in Central Sumatra, with an area under the curve value of 0.851. Mapping showed Central Sumatra had suitability levels of high (5.9%), moderate (8.1%), low (21.7) and unsuitable (64.7%). The endemic G. kuring had the highest habitat suitability in Jambi province. Main Finding: The collected information could be used to determine the best locality for further investigation regarding the diversity and taxonomy of Gigantochloa and as basic data to determine appropriate strategies to protect Gigantochloa habitats, especially for endemic species.

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Section: Sampling Identification and Observation Of Morphological Cha...mentioning

confidence: 99%

Section: Responses Of Variable To Suitabilitymentioning

confidence: 99%

Diversity, ecology and habitat suitability of Gigantochloa in Central Sumatra

2023

ANRES

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“…Spesies bambu di dunia diperkirakan ada 1.200 spesies yang tersebar di 70 negara dengan luas tanaman bambu sekitar 22 juta ha (Jasni et al, 2017). Widjaja (2005) menginformasikan bahwa di Indonesia tumbuh 157 jenis bambu yang merupakan lebih dari 10% jenis bambu di dunia. Zaia et al, (2015) melaporkan bahwa penggunaan bambu sembilang sebagai bahan baku papan partikel menggunakan perekat polyurethane menghasilkan sifat mekanis (MOE dan MOR) yang telah memenuhi standar JIS A 5908 (2003) dengan kisaran antara 5,7 GPa dan 14 N/mm 2 .…”

Section: Pendahuluan Iunclassified

Pemanfaatan Campuran Batang Jagung Dan Bambu Sembilang Sebagai Bahan Baku Papan Partikel

Hermawan¹,

Sutiawan²,

Zendrato³

et al. 2020

j.penelit.has.kehutan

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Corn stalk (Zea mays L.) can be used as an alternative material in the manufacture of particleboards. However, particleboards made from corn stalks has inferior mechanical properties which could not meet the Japanese standard (JIS A 5908: 2003). Such performance can be improved by adding other material which possesses high strength value, such as bamboo sembilang (Dendrocalamus giganteus Munro). This study examined properties of cornstalk particleboard which was added into bamboo sembilang fibers in various compositions. Urea formaldehyde and phenol formaldehyde were used as binding agent with 10% adhesive content. Composition of fiber mixtures between corn stalk and sembilang bamboo were set in 100 : 0; 75 : 25; 50 : 50; and 25 : 75. The targetted density of particleboard was set at 0.80 g/cm 3 . Mechanical properties of the produced particleboards were evaluated according to JIS A 5908:2003 standard. Results showed that particleboard produced using composition of 25% corn stalk and 75% sembilang bamboo bonded with phenol formaldehyde had better mechanical properties than those of the other mixture raw materials and adhesives. Additional high strength of lignocellulose material such as bamboo is one alternative to enhance mechanical properties of cornstalk particleboard.

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“…Wilayah Nusa Tenggara sebenarnya juga menjadi kegiatan eksplorasi (Widjaja & Karsono, 2005)-namun karena kondisi wilayah berupa kepulauan yang menyebabkan kegiatan eksplorasi tidak maksimal menyebabkan banyak keanekaragaman hayati di wilayah Nusa Tenggara masih belum terungkap. Terbukti ketika dilaksanakan eksplorasi keanekaragaman hayati di wilayah Sumba Timur pada tahun 2016, Damayanto & Widjaja (2016) hanya memperoleh satu jenis bambu; dan Widjaja & Karsono (2005) juga telah melakukan eksplorasi bambu di wilayah Pulau Sumba namun hanya menemukan jenis bambu yang sama. Widjaja, dkk (2014) mengatakan hampir seluruh wilayah Indonesia telah dilakukan pengumpulan koleksi flora, hanya saja belum dilakukan eksplorasi pada sebagian daerah di Indonesia, khususnya bambu yang ada di pulau-pulau kecil di Indonesia.…”

Section: Lokasi Koleksi Spesimen Tipe Bambu Bounclassified

Karakteristik Koleksi Spesimen Tipe Bambu Di Herbarium Bogoriense, Pusat Penelitian Biologi – Lipi

Damayanto

Rahmawati

2018

baca.j.dok.inf.

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The aim of this study is to explore information about the characteristics of collections of the type specimens of bamboo in Herbarium Bogoriense (BO) to obtain the infografic status of the collections. The study was conducted in April-May 2018 at BO, Research Center for Biology-LIPI with direct observation method. The population, as well as the sample of the research, is the whole collections of type specimens of bamboo in BO. Data obtained by examining and recording the entire collection of type specimens of bamboo in BO. Characteristics that observed are species names, collectors, number and year of collection, discovery location, number of sheets, specimen conditions, the journal of publication and year, kind of type and duplicate location. Each of species name is validated before it is analyzed. The data were analyzed and presented qualitatively as the tables and charts. There are 107 species from 117 collection numbers of type specimens of bamboo in BO. Two numbers collection from two species is not found. The most type specimen is from Gigantochloa (20,5%). Approximately 63,5% of type specimens were published and/or proposed the combinations of names by LIPI researchers. Elizabeth A.Widjaja is the collector of the most type specimens (43,6%). The highest period (34,2%) of collection activities was in 1991-2000. About 62,6% of type specimens are collected from various islands in Indonesia. There are 577 sheets of type specimens in BO, 92% are in good condition and 8% is good enough. There are 51,3% of holotype specimens in BO, followed by isotype (30,8%), paratype (11,1%), lectotype (2,6%), neotype (2,6%), epitype (0,8%), and isosyntype (0,8%). As many as 50% holotypes has duplicates in more than two different of herbarium locations, the other 37% are without duplicates. About 56% of type specimens are published in the journal of Reinwardtia and 16,8% in Kew Bulletin. ABSTRAK Tujuan penelitian ini adalah untuk menggali informasi karakteristik koleksi spesimen tipe bambu di Herbarium Bogoriense (BO) untuk mendapatkan infografik keadaan koleksi. Penelitian dilakukan pada April-Mei 2018 di BO, Pusat Penelitian Biologi-LIPI dengan metode observasi langsung. Populasi sekaligus sampel adalah seluruh koleksi spesimen tipe bambu di BO. Data diperoleh dengan cara memeriksa dan mencatat seluruh koleksi spesimen tipe bambu di BO. Karakteristik yang diamati yaitu nama jenis, pengumpul, nomor dan tahun koleksi, lokasi penemuan, jumlah lembar, kondisi, jurnal tempat terbit dan tahun, macam tipe dan lokasi duplikat. Setiap nama jenis divalidasi sebelum dianalisis. Data yang dihimpun dianalisis dan disajikan dalam bentuk tabel dan grafik yang diperkuat secara kualitatif. Diperoleh bahwa terdapat 107 jenis dari 117 nomor koleksi spesimen tipe bambu di BO. Dua nomor koleksi dari dua jenis tidak ditemukan. Spesimen tipe terbanyak adalah dari Gigantochloa (20,5%). Sekitar 63,5% spesimen tipe diterbitkan dan/atau diusulkan nama kombinasi oleh peneliti LIPI. Elizabeth A.Widjaja adalah pengumpul spesimen tipe terbanyak (43,6%). Pe...

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Bamboo Diversity in Sumba Island

Cited by 8 publications

References 0 publications

Diversity, ecology and habitat suitability of Gigantochloa in Central Sumatra

Diversity, ecology and habitat suitability of Gigantochloa in Central Sumatra

Pemanfaatan Campuran Batang Jagung Dan Bambu Sembilang Sebagai Bahan Baku Papan Partikel

Karakteristik Koleksi Spesimen Tipe Bambu Di Herbarium Bogoriense, Pusat Penelitian Biologi – Lipi

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