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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Sains Dan Teknologi (SAINTEKBU)
Retno Peni Sancayaningsih
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Immunology & microbiology Library & Information Science Veterinary

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THE GROWTH STRATEGIES ANALYSIS OF TEN WOODY PLANT SPECIES FOR EFFECTIVE REVEGETATION Ridesti Rindyastuti; Retno Peni Sancayaningsih
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 25 No. 1 (2018)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2018.25.1.705

Abstract

The growth strategies of plant species show the ecological role which is reflexed by their adaptation to environments and competitiveness. Those are essential in the study of the revegetation effectiveness. However, the growth strategies of plant species in various types of habitats have not yet been fully investigated. The objective of this study was to investigate the growth strategies of ten woody plant species which were naturalized from mangrove to lowland habitats in relation to their effectiveness for revegetation program. The seedling’s growth was recorded during 4 months in Purwodadi Botanic Garden-LIPI from October 2014 to February 2015. Complete randomized design with plant species as a treatment using 3 replications was carried out to examine the plant’s Relative Growth Rates (RGRs), their components, leaf nitrogen productivity and growth strategies.The study showed that RGRs of ten woody plants species varied across species. Based on the Pearson correlations, the plant’s Net Assimilation Rates (NAR) and two ecological traits related to the root trait i.e. Nitrogen productivity and Specific Root Length (SRL) were strongly correlated with the RGRs. Heritiera littoralis, Diospyros discolor, Antidesma bunius, Schleichera oleosa, Madhuca longifolia and Syzygium cumini have high RGRs but low Specific Leaf Area (SLA). B. asiatica has relatively low RGRs and SLA, while Dracontomelon dao have high RGRs and SLA. It showed that most of plant species studied, except D. dao achieve growth rates and competitiveness by developing strategies through forming fine roots to maximize its ecological function in nutrients uptake. Most of woody plant species are adaptive to dry lowland habitat and only D. dao potentially occupy the ecosystem. Furthermore, D. discolor and S. oleosa are highly recommended for revegetation in degraded tropical lowland areas.
ANALISIS EKOLOGIS VEGETASI POHON DI DAERAH TANGKAPAN AIR (DTA) MATA AIR GEGER KABUPATEN BANTUL YOGYAKARTA Remigius Binsasi; Retno Peni Sancayaningsih; Sigit Heru Murti
SAINTEKBU Vol 9 No 2 (2017): Volume 9 No. 2 Mei 2017
Publisher : KH. A. Wahab Hasbullah University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.341 KB) | DOI: 10.32764/saintekbu.v9i2.110

Abstract

Potensi sumber daya air di Indonesia sangat melimpah, tetapi ketersediaan air sangat bervariasi berdasarkan dimensi ruang dan waktu. Adanya perubahan iklim, kerusakan ekosistem dan perubahan penggunaan lahan di Daerah Tangkapan Air (DTA) mengakibatkan terjadinya krisis air di musim kemarau. Penelitian ini bertujuan untuk menganalisis komposisi dan struktur vegetasi pohon dalam peranannya sebagai salah satu bentuk konservasi air. Analisis vegetasi secara ekologis yaitu Jenis tumbuhan, Densitas, Frekuensi, Luas basal area, INP, dan Indeks Keanekaragaman. Penelitian ini dilaksanakan pada bulan November 2015-April 2016 di DTA mata air Geger. Metode pengambilan sampel adalah metode kuadrat plot secara acak. Penentuan DTA yaitu berdasarkan Citra Quikbird untuk pembagian kelas vegetasi. Selain itu, dilakukan pengukuran kadar lengas tanah dan fisiko kimia. Hasil penelitian menunjukkan bahwa luas area DTA mata air Geger secara keseluruhan berdasarkan kelas vegetasi yaitu 9875.26 ha. Jumlah individu spesies terbanyak yang ditemukan dari masing-masing kelas vegetasi secara berturut-turut yaitu Swietania mahagoni, (L.) Jacq; Tectona grandis, L. Acacia auriculiformis A. Cunn Ex Benth; Tectona grandis, L. dan Gnetum gnemon, L. Indeks Nilai Penting (INP) tertinggi dari masing-masing kelas vegetasi yaitu Swietania mahagoni, (L.) Jacq (110,84%) untuk kelas I; Tectona grandis, L. untuk kelas II, III, IV secara berturut-turut yaitu (85,71%), (72,52%), (115,19%); dan Gnetum gnemon, L. (182,21%) untuk kelas V. Hasil analisis indeks keanekaragaman jenis (Shanon winner) menunjukkan bahwa keanekaragaman spesies sangat berkorelasi dengan jumlah spesies dalam suatu wilayah DTA, sedangkan nilai indeks kemerataan atau evennes menunjukkan bahwa distribusi spesies termasuk dalam kategori tinggi.  Kata kunci: Analisis Ekologis, vegetasi Pohon , DTA, Geger
Co-Authors Binsasi, Remigius Ridesti Rindyastuti Sigit Heru Murti