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Hasil Pencarian

Ditemukan 56400 dokumen yang sesuai dengan query
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"The accuracy of Landsat 5 multispectral scanner (MSS) data for mapping mangrove in Java is investigated and compared with SPOT 1 very-High-Resolution Scanner (XS) data. Supervised classification on mangrove is performed for SPOT XS data sets collected on August 1988 and Landsat MSS on August 1985. A detailed accuracy assesment is conducted based on ground data collected in 1988 and 1989. These results produce overall mangrove area classification accuracies of 74,2 and 82,8 percent for MSS and XS with 7 and 10 classes, respectively. While the accuracies for predominant categories are similar for both sensors, mangrove discrimination for less commonly occurring and/or spatially heterogeneous categories is improved with the XS data set. The MSS, however, performs similar, or better than the XS in classifying large homogeneous areas. The use of MSS data which is expensive than high resolution data appears promising for mangrove monitoring."
GEOUGM 22:63 (1992)
Artikel Jurnal  Universitas Indonesia Library
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Chichester, West Sussex: Wiley-Academy, 2003
526 MAP
Buku Teks SO  Universitas Indonesia Library
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"This study deals with the application of remote sensing in monitoring mangrove disappearance. 1981 color aerial photograph, 1985 numerical data Landsat, 1988 SPOT were used. Two types of mangroves could be identified both on the aerial photograph and on the SPOT data. The extent of mangrove in 1981 was measured manually, while those in 1985 and 1988 were obtained by multiplying the number of pixel and the spatial resolution of Landsat and SPOT. During 1981-1988, there were 852 hectares of mangrove in the study area which have been cut off. For mangrove reforestation purposes, two mangrove zonation are presented one is based on the salinity gradient, while the other is based on the Ciloto formula. It seems that the second zonation is quite good for the study area.
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GEOUGM 21:61 (1991)
Artikel Jurnal  Universitas Indonesia Library
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Paynich, Rebecca
Boston: Jones and Bartlett Publishers, 2010
363.25 PAY f
Buku Teks  Universitas Indonesia Library
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Paynich, Rebecca
"Criminal Investigations & Forensic Science"
Sudbury, Mass: Jones and Bartlett Publishers, 2010
363PAYF001
Multimedia  Universitas Indonesia Library
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"Senyawa lipid tak tersabunkan (non-saponifiable lipid/NSL) dari daun dan akar dua spesies mangrove sekresi, yaitu Aegiceras corniculatum (L.) Blanco dan Avicennia alba Bl, dua spesies mangrove non-sekresi, yaitu Acrostichum aureum L. dan Excoecaria agallocha L dianalisis dengan penekanan khusus pada triterpenoid dan fitosterol. Identifikasi triterpenoid dan fitosterol dikonfirmasi dengan perbandingan waktu retensi pada kolom GC dengan standar otentik dan interpretasi spectrum GC-MS. Triterpenoid dan fitosterol merupakan proporsi utama NSL. Triterpenoid dan fitosterol masing-masing terdiri dari 7 dan 4 senyawa. Triterpenoid merupakan konstituen terbesar dari spesies Ac. aureum dan Ae. corniculatum di jaringan daun dan akar, dan di akar spesies E. agallocha. Berbeda dengan spesies tersebut yang kaya kandungan triterpenoid, senyawa fitosterol relatif dominan dalam akar Av. alba. Spesies Av. alba dan E. agallocha di daun dibedakan dari spesies yang lain bahwa kedua spesies tersebut mengandung jumlah yang lebih besar dari senyawa fitol. Spesies Ae. corniculatum mengandung sejumlah besar konten betulin dan α-amyrin di akar, serta lupeol di akar spesies Av. alba. Keragaman dalam komposisi NSL tercatat dengan jenis mangrove untuk kedua jaringan daun dan akar, studi ini menyarankan bahwa komposisi NSL pada daun dan akar tumbuhan mangrove dapat digunakan sebagai karakter kemotaksonomi untuk membedakan spesies.

Non-saponifiable lipid (NSL) of the fresh leaves and roots from two salt-secretor mangrove species, namely Aegiceras corniculatum (L.) Blanco and Avicennia alba Bl. and two non-secretor mangroves, i.e. Acrostichum aureum L. and Excoecaria agallocha L. was analyzed with special emphasize to triterpenoids and phytosterols. Identification of the triterpenoids and phytosterols was confirmed by comparison of their retention time on the GC column with those of authentic standards and on the interpretation of GC-MS spectra. Triterpenoids and phytosterols comprised the major proportion of NSL. The triterpenoids and phytosterols mainly consisted of 7 and 4 compounds. Triterpenoids were the largest constituent of Ac. aureum and Ae. corniculatum leaves and roots, and E. agallocha roots. In contrast to these triterpenoids-rich species, phytosterols were relatively dominant in the roots of Av. alba. The species of Av. alba and E.agallocha in the leaves were distinguished from the others in that both species contained a larger quantity of phytol. Ae. corniculatum contained a large amount of betulin and α-amyrin in the roots, as well as lupeol in the roots of Av. alba. The diversity in the NSL composition noted with mangrove species in both the leaves and roots suggested that NSL of mangrove leaves and roots can be used as chemot axonomical character to differentiate species. "
Direktorat Riset dan Pengabdian Masyarakat Universitas Indonesia, 2012
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Artikel Jurnal  Universitas Indonesia Library
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"Stereoscopic SPOT P and monoscopic SPOT XS data were tested for assessing the SPOT capability for geologic and soil mappings in Indonesia, down to 1:50,000 and 100,000 scales. Methodological approaches for spatial and spectral analysis of SPOT images are briefly discussed and illustrated. The operational SPOT capability was tested with the geologic soil mappings of Wonosari from monoscopic SPOT XS data. Generally speaking, results are compared well with mappings from 1:50,000 infrared aerial stereo-pairs. The paper concludes that SPOT has the potential of a major data source for operational small/medium scale geologic and soil surveys in Indonesia.
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GEOUGM 19:57 (1989)
Artikel Jurnal  Universitas Indonesia Library
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Ating Kusdinar
"Two multi-temporal as well as multi-sensor data of LANDSAT MSS (1979) and MOS (1991) were used for Mangrove Forest change detection in Tg. Karawang, West Java. About 13,986 hectare decrease of total volume of the Mangrove Forest were detected for 12 years from 1979 to 1991. Procedures for change detection of vegetated areas employed in this study were detected by post-classification differencing technique. Landsat MSS image was registered to MOS image after the extraction of the test area from the each original image. A land cover classification image of the Landsat MSS in 1979 was produced by the supervised maximum likelihood classification method, another land cover classification image of the MOS Data 1991 was produced by the same method."
Depok: Fakultas Teknik Universitas Indonesia, 1995
T3782
UI - Tesis Membership  Universitas Indonesia Library
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"Study on mangrove forest in the coastal zone of Lampung bay,Province of lampung was carried out on March 12-30,2007 . The data was collected from 8 stationsm(Pidada bay,Limbungan,Puhawang Kecil Island,kalangan,Klagian Island,Kapuran,Ringgung and Hurun Bay) based on the transect method...."
Artikel Jurnal  Universitas Indonesia Library
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"Litter production is one of the major nutrient enrichments in a mangrove forest. Investigation on nutrient components in litter will lead to evaluation of nutrient accumulation. Therefore, this research aimed to 1) evaluate litter production in tropical mangrove forest at Klong Khone, Samut Songkhram province, Thailand; 2) investigate carbon, nitrogen and phosphorus contents in litter; and, 3) observe sediment quality and existing mangrove condition in the study area. Litter and sediment were collected at Klong Khone, Samut Songkhram province in September-October 2015. Litter samples were analyzed for biomass production, and composition of carbon, nitrogen and phosphorus. Sediment samples were analyzed for pH, salinity, water content, grain size composition, organic carbon, total nitrogen and total phosphorus. Results showed that leaf, branch, and fruit litter production were 65.02, 47.94 and 19.03 g DW/m2/month, respectively. Carbon, nitrogen, and phosphorus content in the litter were 20.36, 0.37 and 4.47 mg/g DW leaf litter, respectively. The value of pH, salinity and water content of sediment ranged from 6.66-7.50, 3.30-9.28 ppt and 52.24-69.65%, respectively. Sediment was composed of fine sand (0.125-1 mm) 7.68%, silt (0.06-0.125 mm) 6.13%, and clay (smaller than 0.06 mm) 86.19%. By using statistical analysis (t-test), results showed no difference of all parameters between months. However, during the research, it was found that organic carbon decreased 2.37 mg C/g DW sediment; meanwhile nitrogen and phosphorus increased 0.44 mg N and 0.12 mg P /g DW sediment, respectively. Finally, carbon, nitrogen and phosphorus accumulation by litterfall were found to be 1877, 34 and 734 mg/m2/month, respectively. These results will help in clarifying nutrient dynamic pathway by mangrove trees which play an important role in coastal and estuarine ecosystem restoration."
[Place of publication not identified]: Bansomdejchaopraya Rajabhat University. Faculty of Science and Technology, 2017
500 TIJST 22:1 (2017)
Artikel Jurnal  Universitas Indonesia Library
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