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INDONESIA
REINWARDTIA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol. 22 No. 1 (2023)" : 6 Documents clear
VARIATION IN THE COMPOSITION AND STRUCTURE OF NATURAL LOWLAND FORESTS AT BODOGOL, GUNUNG GEDE PANGRANGO NATIONAL PARK, WEST JAVA, INDONESIA Asep Sadili; Andi Salamah; Edi Mirmanto; Kuswata Kartawinata
Reinwardtia Vol. 22 No. 1 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

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An analysis of the composition and structure of lowland natural forests was carried out in Bodogol, Gunung Gede Pangrango National Park (GGPNP). The two study plots (P1CS and P2CS) were located on Cisuren and one plot (P3CP) on Cipadaranten hill. We recorded 107 species and 48 families with an average basal area of 19.73 m2/ha, and an average density of 348 trees/ha. The species richness was poorer than those of the typical lowland rainforests of Kalimantan and Sumatra but comparable to those of the montane forests of Java. The IUCN-Red Listed species were Castanopsis argentea and Castanopsis tungurrut (critical) and Saurauia bracteosa (vulnerable). Based on the two dominant species, the forests can be designated as the Maesopsis eminii-Syzygium acuminatissimum association and Syzygium acuminatissimum-Lithocarpus korthalsii association. Maesopsis eminii was dominant in P1CS (IV= 56.46%) and P3CP (IV=55.94%), while Syzygium acuminatissimum in P2CS (IV= 43.67%). Maesopsis eminii was a strongly aggressive and invasive species, that endangered the purity of the natural forest GGPNP, therefore, it must be eradicated. Vertically, P2CS and P3CP consisted of four strata, while P1CS had three strata. This one-hectare study can be considered as a minimal area to reflect the floristic representation of lowland forest and submontane forest.
A NEW RECORD OF EUPHORBIACEAE WEEDS FOR PENINSULAR MALAYSIA Rafidah Abdul Rahman; Nik Faizu Nik Hassan
Reinwardtia Vol. 22 No. 1 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

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Caperonia A.St.-Hil. is a new genus record for Peninsular Malaysia, with the species of Caperonia palustris (L.) A.St.-Hil. This paper will provide a description, distribution, habitat, and colour plates of the species.
THE TYPIFICATION OF GIGANTOCHLOA TALUH WIDJAJA & ASTUTI (POACEAE, BAMBUSOIDEAE) I Putu Gede P. Damayanto; Himmah Rustiami; Miftahudin Miftahudin; Tatik Chikmawati
Reinwardtia Vol. 22 No. 1 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

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The name of Gigantochloa taluh Widjaja & Astuti (Poaceae, Bambusoideae) was invalid because of failure to meet the requirements of the International Code of Nomenclature for algae, fungi, and plants, that there was no herbarium location of type specimens was mentioned. A typification was provided here to address this issue.
FLORISTIC COMPOSITION AND STRUCTURE OF VEGETATION IN GUNUNG SALAK GEOTHERMAL POWER PLANT, WEST JAVA, INDONESIA Afri Irawan; Peniwidiyanti Peniwidiyanti; Ainurrofiah Ainurrofiah; Heri Destrianto; Mulyadi Kusumah; Vicky Apriandana
Reinwardtia Vol. 22 No. 1 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

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This research had been conducted in the forest area around the Gunung Sa-lak Geothermal Power Plant of PT. PLN Indonesia Power. Plant diversity data in the geothermal power plant area had yet to be fully available. This study aimed to analyze the composition and structure of vegetation in the conservation forest area around the Gunung Salak Geothermal Power Plant unit. This study used a quadrat plot with a purposive sampling method. We sampled 873 individuals from 56 families of 110 species, consisting of native and introduced species. Some introduced flora species that have the potential to become invasive include Calliandra houstoniana, Asystasia gangetica, Bellucia pentamera, Miconia crenata, Maesopsis eminii, and Solanum torvum. The families with the highest number of species at each growth level were Fagaceae (tree), Fagaceae (pole), Arecaceae and Moraceae (sapling), also Acanthaceae, Arecaceae, Melastomataceae, and Poaceae in the understory. Several species of plant at the site are listed as Endangered (EN) based on the IUCN Red List, including Alpinia scabra, Castanopsis argentea, and Dipterocarpus hasseltii. These endangered plants are expected to become priority for conservation strategies and action plans. The Important Value Index (IVI) analysis shows different values at each growth stage. The highest IVI at the seedling and herb was Selaginella plana (29.74), the sapling was Macaranga triloba (20.59), the pole was Ficus fistulosa (43.27), and the tree was Schima wallichii (54.90). The value of the Shannon-Wiener (H') diversity index was 3.784, which indicates that the level of diversity is high.
MODELLING THE POTENTIAL DISTRIBUTIONS OF SAWO KECIK (MANILKARA KAUKI (L.)) DUBARD USING MAXENT TO SUPPORT CONSERVATIONS OF HISTORICAL AND CULTURAL VEGETATIONS IN DAERAH ISTIMEWA YOGYAKARTA PROVINCE Andri Wibowo; Atus Syahbudin; Adi Basukriadi; Erwin Nurdin
Reinwardtia Vol. 22 No. 1 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

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Modelling the potential distributions of Sawo Kecik (Manilkara kauki (L.)) Dubard using MaxEnt to support conservations of historical and cultural vegeta-tions in Daerah Istimewa Yogyakarta Province. Reinwardtia 22(1): 55‒67. — Sawo kecik or Manilkara kauki (L.) Dubard, of the Sapotaceae family as it is formally known, is one of the species with significant cultural values in Yog-yakarta Province (DIY) culture because it symbolizes social righteousness. In connection with this, Yogyakarta's mu-nicipal and district governments have been encouraged to plant sawo kecik. Despite these efforts, there is still a lack of knowledge regarding the possible range of this species, and this knowledge is essential to promoting the conservation of M. kauki in DIY. With the help of isothermality, precipitation of driest month, precipitation seasonality, precipita-tion of driest quarter, and precipitation of warmest quarter data, this study tries to simulate the probable distributions of M. kauki throughout cities and districts in DIY. The model estimated 1,275 km2 of DIY areas was suitable for M. kauki that concentrated in the central parts, spanning from the west to the east of DIY. Yogyakarta City followed by Sleman District has the largest areas categorized from high to very high suitable for M. kauki. While, Gunung Kidul followed by Kulonprogo Districts have the largest areas categorized as low suitable. To conclude, M. kauki can adapt areas with moderate precipitation as low as 20 mm during driest month and as low as 100 mm during driest quarter. During warmest quarter, M. kauki requires precipitation with value of 700 mm. The conservation effort and M. kauki planting should then concentrate on Yogyakarta City and Sleman District since such locations are thought to have high appropriateness for the species.
Front Cover Reinwardtia Vol. 22, No 2 (2023) Editor
Reinwardtia Vol. 22 No. 1 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

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