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All Journal JURNAL TEKNOLOGI LINGKUNGAN Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Indonesian Journal of Forestry Research Buletin Kebun Raya BERITA BIOLOGI JURNAL BIOLOGI INDONESIA Vivabio : Jurnal Pengabdian Multidisiplin
TITI JUHAETI
Pusat Penelitian Biologi LIPI
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Public Health

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Journal : JURNAL TEKNOLOGI LINGKUNGAN

 1 
STRUKTUR DAN KOMPOSISI VEGETASI POHON SERTA ESTIMASI BIOMASSA, KANDUNGAN KARBON DAN LAJU FOTOSINTESIS DI TAMAN NASIONAL GUNUNG HALIMUN-SALAK Mansur, Muhammad; Hidayati, Nuril; Juhaeti, Titi
Jurnal Teknologi Lingkungan Vol. 12 No. 2 (2011)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.014 KB) | DOI: 10.29122/jtl.v12i2.1248

Abstract

Research the structure and composition of vegetation, biomass estimation, carbon content and the rate of photosynthesis was conducted in Citalahab Central Village,Gunung Halimun-Salak National Park, West Java, on August 2010. The purpose of research to determine the components and characteristics of each tree species at the study sites associated with biomass, the rate of CO2 assimilation and transpiration. Results showed that, the form of classified forest area of primary forest with a little disturbed. There were recorded 337 individual trees (stem diameter > 10 cm) per hectare from 71 species, 50 genera and 32 families. Lauraceae, Fagaceae, Myrtaceae, Rubiaceae and Meliaceae are the 5 most common families found in the plot area, thatis dominated by Altingia excelsa, Blumeodendron elateriospermum, Ardisia zollingeri, Gordonia excelsa, Tricalysia singularis, Castanopsis acuminatissima, Knema cinerea, Laportea stimulant, Vernonia arborea and Dysoxylum excelsum. Estimated biomass recorded of 304.5 tons dry weight / ha with a carbon content of 152.3 tons / ha of basal area of 28.89 m2/ha. Quercus oidocarpa, Litsea noronhae, Saurauia nudiflora, Castanopsis argentea and Altingia excelsa has recorded the highest photosyntheticrates compared with other species. While the highest transpiration rate is owned by the Macaranga triloba, Sandoricum koetjape, Prunus arborea, Urophyllum corymbosum and Altingia excelsa.
POTENSI SALVINIA MOLESTA D.S. MITCHELL, LIMNOCHARIS FLAVA (L.) BUCHENAU DAN MONOCHORIA VAGINALIS (BURM.F.) PRESL UNTUK FITOEKSTRAKSI MERKURI DI SAWAH YANG TERCEMAR MERKURI AKIBAT KEGIATAN PENAMBANG EMAS TANPA IZIN (PETI) Juhaeti, Titi; Hidayati, Nuril; Syarif, Fauzia; Hidayat, Syamsul
Jurnal Teknologi Lingkungan Vol. 11 No. 2 (2010)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (209.403 KB) | DOI: 10.29122/jtl.v11i2.1203

Abstract

The research were carried out to study the potency of Salvinia molesta D.S. Mitchell (Kiambang), Limnocharis flava (L.) Buchenau (Genjer) and Monochoria vaginalis (Burm.f.) Presl (Eceng) for Hg phytoextraction on paddy field contaminated with Hg from illegal mining. The plants were grown on contaminated media from paddy field in Pongkor (68.269 ppm Hg) added by NPK fertilizer (0, 3 and 6 g/pot) and ammonium thiosulphate chelating agent (0, 20 ppm). The result showed that the growth of kiambang,eceng, genjer and padi are significantly different. Chelating agent did not significantly affect the plant growth, meanwhile fertilizer significantly affected the plant growth. Thetreatments resulted in different Hg concentration in the plants. Fertilizer increased plant biomass and so plant Hg content since Hg contents is a function of total biomass and Hg concentration. It can be concluded that based on the criteria of accumulator plant,kiambang is the most potentially Hg accumulator followed by genjer and eceng.Key words: Phytoextraction, Hg, Salvinia molesta, Limnocharis flava, Monochoriavaginalis
PEMANFAATAN SALVINIA MOLESTA D.S. MITCHELL, AKUMULATOR MERKURI DI SAWAH TERCEMAR LIMBAH PENAMBANGAN EMAS Hidayati, Nuril; Syarif, Fauzia; Juhaeti, Titi
Jurnal Teknologi Lingkungan Vol. 10 No. 3 (2009)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (113.693 KB) | DOI: 10.29122/jtl.v10i3.1470

Abstract

Mercury is one of important contaminants in mine lands. One approach to remediaterisks from this metal pollutant is phytoextraction using hyperaccumulator plants. Theseremarkable plant species accumulate appreciable high concentrations of metals thando normal plants when the normal plants suffer yield reduction from metal phytotoxicity.Some plant species growing in gold mine contaminated areas indicated high toleranceand potentially effective in accumulating mercury in their roots and above groundportions. Salvinia molesta is one of them. This plant could be utilized as hyperaccumulatorfor cleaning up mercury contaminated sites. This research aim to study phytoextractionof mercury by Salvinia molesta and the effectiveness of mercury degradator bacteria onplant tolerance and mercury phytoextraction. In this study Salvinia molesta was grown inmercury contaminated liquid gold mine waste, added with Mercury (II) Chloride (HgCl2)0 ppm Hg, 10 ppm Hg, 30 ppm Hg and 50 ppm Hg. Mercury degradator bacteria wasapplied in the media. The results showed that Salvinia molesta was able to survive evenin media with high level of mercury concentration (50 ppm), although the number ofplant survival tend to decrease with the increase of mercury concentration. Variables ofsurface coverage and live plants decreased with the increase of mercury concentrationin the media. There was a close correlation between plant growth variables and mercuryconcentration in the media. The effects of mercury toxicity on plants seems to decreasein bacteria treated plants. It was indicated by the higher percentage of surface coverageand plant survival in bacteria treated plants than that of untreated plants up to 30 ppm Hg.Recovery from toxicity was shown in bacteria treated plants up to 30 ppm Hg. Mercuryaccumulation in plants tent to increase with the increase of mercury concentration inmedia. It can be concluded that plant performance was better and mercury concentrationdecreased in bacteria treated plants.
Co-Authors A.A. Ketut Agung Cahyawan W Achmad Noerkhaerin Putra Fauzia Syarif Hidayati, N. Hidayati, N. M Rahmansyah M. Mansur MUHAMMAD MANSUR N Hidayati Naiola, B.P. Ninik Setyowati NURIL HIDAYATI P. Lestari Peni Lestari S Hidayat, S S. Hidayat, S. Sukamto, Lazarus A. Sukamto, Lazarus A. Syarif, F SYARIF, F. Syarif, F. Utami, N W Utami, N W