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KAJIAN PENDAHULUAN FLORISTIK DAN FITOSOSIOLOGI POHON DI PULAU SIMEULEU PROVINSI ACEH Sadili, Asep; Royyani, M. F.; Agusta, A.; Afandi, I.; Efendy, O.; Ashari, H.; Keim, A. P.
JURNAL BIOLOGI INDONESIA Vol 15, No 2 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i2.3812

ABSTRACTSimeuleu island is located in the western part of Sumatera belonging to Aceh Province. Floristic and phytososiological information of vegetation in Simeuleu island is limited and not much study has been conducted, especialy trees species group (diameter ?10 cm). Two study plots were used: one hectare at Kuala Makmur forest and one ha at Alafan forest (100 m × 100 m). Density analisys at Kuala Makmur recorded 329 individuals/ha while at Alafan consisted of 377 individuals/ha (average of 353 individuals/ha). Total basal area at Kuala Makmur 29.48 m2/ha while at Alafan was 44.28 m2/ha (with an average of 36.88 m2/ha). The Shannon-Wiener diversity index (H?) at Kuala Makmur was 2.94 and at Alafan was 2.73 (whit an average H?of 2.84). The total canopy heights of the two study sites as were relatively similar consisting of four strata. Dominant species occurred at Kula Makmur was Shorea atrinervosa (Importance Value, IV=83.55%) and at Alafan was Dipterocarpus grandiflorus (IV=128.06%). Dominant familly at Kuala Makmur was Dipterocarpaceae and at Alafan was Ebenaceae. The distribution of dominant tree species at Kuala Makmur is less prevalent than at Alafan. Keywords: Simeuleu, Aceh, trees structure, species richness, lowland forest.

KOMPOSISI JENIS HERBA PASCA KEBAKARAN DI KALAMPANGAN-KALIMANTAN TENGAH SEBAGAI AWAL PROSES SUKSESI SEKUNDER Sadili, Asep
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 1 (2010): February 2010
Publisher : Universitas Atma Jaya Yogyakarta

In the early stage of secondary succession process in 1 year old fost fire Kalampangan feat swamp area it was conducted a study on herbaceous plant species composition. The research found 6 fern species and 1 grass species out of 23 species representing 20 families. The coverage area of herbaceous vegetation was 13.12% or 1.312 m2 per hectare, which indicated relatively low percentage. In terms of relative dominance and frequency, herbaceous plant species in the area study was highly dominated by a terrestrial fern Stenochlaena palustris. Some tree species known as secondary and primary forest constituents such as Macaranga caladifolia (Euphorbiaceae), Dyera lowii (Apocynaceae), Combretocarpus rotundatus (Combretaceae), Cratoxylon arboresncens (Clusiaceae), Garcinia sp. (Clusiaceae) and Ploinarium alterifolium (Theacee) were found at their early growth stage on the forest floor but still in lower abundance compared to other recorded species from the study.

HUTAN GAMBUT SUAKA MARGASATWA GIAM SIAK KECIL DAN HUTAN GAMBUT PT ARARA ABADI â€“ POPINSI RIAU; VEGETASI DAN KERUSAKANNYA Sadili, Asep
JURNAL BIOLOGI INDONESIA Vol 12, No 1 (2016): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v12i1.2307

This study aims to determine state of plant vegetation stands within of damage level at the Giam Siak Kecil wildlife sanctuary (Tasik Betung area) and Conservation Forest PT Arara Abadi (Bukit Batu area) - Riau. Several plots of different vegetation types were used in this study. The number of plots develoved in Tasik Betung were 13 plots, while in Bukit Batu were 11 plots (50 x20 m). The plots were conducted for trees (10 x10 m) and belta (5 x 5 m). The two study sites were generally susceptible to interference, especially in Tasik Betung. The total number of trees and belta were recorded for 178 species, 91 genera and 43 families. The main trees species at Tasik Betung was dominated by Pandanus Artocarpus (IV=17,35%), while Bukit Batu was Gonystylus bancanus (IV=21,35%), The belta category at Tasik Betung was dominated by Gymnacanthera contracta (IV=19,31%), while in Bukit Batu was Mangifera parvifolia (IV=34,71%). Species protected of Endangered species found were Dillenia excelsa, Garcinia bancana, Shorea parvifolia, S. teysmaniana, S.uliginosa, Vatica rassak, and V. umbonata. Keywords: Bukit Batu, peat swamp forest, Riau, vegetation, Tasik Betung.

JENIS ANGGREK (ORCHIDACEAE) DI TAU LUMBIS, NUNUKAN, PROPINSI KALIMANTAN TIMUR: SEBAGAI INDIKATOR TERHADAP KONDISI KAWASAN HUTAN Sadili, Asep
JURNAL BIOLOGI INDONESIA Vol 9, No 1 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v9i1.147

Telah dilakukan penelitian keanekaragaman flora anggrek epifit dan terestrial dari dua lokasi sebagai indikator terhadapkondisis kawasan hutan di sekitar Tau Lumbis Kalimantan-Timur (Manukon dan Kabungolor). Penelitianini dilakukan bulan April 2009 dengan menggunakan metode plot kuadrat ukuran 10 x 500 m (0,5 ha). Hasil studiini telah berhasil diidentifikasi 18 jenis dari 15 marga dengan total kerapatan sebanyak 289 rumpun/0,5 ha. Anggrekepifit sebanyak 14 jenis dan terestrial 4 jenis. Indeks keanekaragaman jenis memperlihatkan sedang (Hâ??=1.41).Agrostophyllum bicuspidatum adalah nilai penting tertinggi di Manukon (NP=50.70 %) dan Corymborchis veratrifolianilai penting tertinggi di Kabungolor (NP=26.32 %). Berdasarkan analisis cluster menggunakan software Biodiversity-Pro yang berdasarkan pada kerapatan dari dua lokasi dapat dibagi menjadi lima kelompok besar, dan secaraumum kondisi hutan di Kabungalor lebih baik dari Manukon.Kata kunci: Jenis-jenis anggrek, Hutan, Tau Lumbis, Kalimantan Timur

KAJIAN PENDAHULUAN FLORISTIK DAN FITOSOSIOLOGI POHON DI PULAU SIMEULEU PROVINSI ACEH Sadili, Asep; Royyani, M. F.; Agusta, A.; Afandi, I.; Efendy, O.; Ashari, H.; Keim, A. P.
JURNAL BIOLOGI INDONESIA Vol 15, No 2 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i2.3812

ABSTRACTSimeuleu island is located in the western part of Sumatera belonging to Aceh Province. Floristic and phytososiological information of vegetation in Simeuleu island is limited and not much study has been conducted, especialy trees species group (diameter ?10 cm). Two study plots were used: one hectare at Kuala Makmur forest and one ha at Alafan forest (100 m × 100 m). Density analisys at Kuala Makmur recorded 329 individuals/ha while at Alafan consisted of 377 individuals/ha (average of 353 individuals/ha). Total basal area at Kuala Makmur 29.48 m2/ha while at Alafan was 44.28 m2/ha (with an average of 36.88 m2/ha). The Shannon-Wiener diversity index (H?) at Kuala Makmur was 2.94 and at Alafan was 2.73 (whit an average H?of 2.84). The total canopy heights of the two study sites as were relatively similar consisting of four strata. Dominant species occurred at Kula Makmur was Shorea atrinervosa (Importance Value, IV=83.55%) and at Alafan was Dipterocarpus grandiflorus (IV=128.06%). Dominant familly at Kuala Makmur was Dipterocarpaceae and at Alafan was Ebenaceae. The distribution of dominant tree species at Kuala Makmur is less prevalent than at Alafan. Keywords: Simeuleu, Aceh, trees structure, species richness, lowland forest.

DINAMIKA VEGETASI PADA PETAK PERMANEN RASAMALA (ALTINGIA EXCELSA NORONHA) DI BODOGOL, TAMAN NASIONAL GUNUNG GEDE PANGRANGO, JAWA BARAT Sadili, Asep
JURNAL BIOLOGI INDONESIA Vol 10, No 1 (2014): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v10i1.323

First year re-monitoring conducted in 2009 through measuring the entire individuals that have been given numbersand giving new numbers to individuals with stem diameter more than 5 cm. The result of re-monitoring indicatesthat the numbers of populations and species increased, but not significant. Mortality rate observed 7 individualsper hectare (about 1.20 %); whereas natality rate observed 25 individuals per hectare (about 2.52 %), which isregarded as low. Basal area observed in 2008 was approximately 26.55 m2 per hectare and it increased to about27.34 m2 per hectare in 2009. Total number of individuals in 2009 was 595 individuals from 119 species, 86genera, and 44 families with diversity index of 3.60 (Hâ??). Elaeocarpus petiolatus (Elaeocarpaceae) and Planchoniavalida (Sapotaceae) are new additions. Altingia excelsa is still the dominant species.Keywords: Forest dynamics, rasamala permanent plots, Bodogol, GPNP

DINAMIKA PERTUMBUHAN POHON DI HUTAN RESTORASI BODOGOL TAMAN NASIONAL GUNUNG GEDE PANGRANGO, JAWA BARAT Sadili, Asep; Salamah, Andi; Mirmanto, Edi; Kartawinata, Kuswata
Berita Biologi Vol 22 No 2 (2023): Berita Biologi
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/beritabiologi.2023.812

The Restored Forest (RF) in Bodogol, Gunung Gede Pangrango National Park (GGPNP) is located in the degraded lowland forest area. The Bodogol RF constituted the area of the ecosystem restoration program, where the initial tree planting was carried out by Mrs. Megawati Soekarnoputri the 5th President of the Republic of Indonesia. In that restored forest area, a study was conducted by establishing one hektare plots. We recorded 26 tree species and 16 families, including 14 tree species that were used in the restoration, four cultivated species, and eight species that naturally enter the site as new arrival (recruitment). The total basal area was 7.47 m2/Ha and tree density was 256 trees/Ha. The mean diameter growth was 1.78 cm/year, and the highest diameter growth was Hibiscus tilliaceus (2.42 cm/year). The mean total height growth was 0.52 m/year, and the highest was Paraserianthes falcataria (0.85 m/year). The density of Toona sureni was very high (61 trees/Ha) and in the future it ay dominate the forest will, therefore other tree species native to Mt. Gede-Pangrango should be planted to enrich the present restored forest so as to encourage the development of mixed lowland or montane forests similar to the original climax forests with high species diversity. Structurally, about 50 % of the RF has been achieved, but species composition still needs further enrichment either by active intervention of planting native TNGGP species if deemed necessary or by allowing succession to take place naturally, although it will take a very long time.

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