Organochlorine Pesticides in the Coastal Sediment of Citarum Estuary, Jakarta Bay: The Imp Ortant Role of Fine Fraction of the Sediment as Their Agent Transport and Processes of Their Early Diagenesis

Pratono, T.; Razak, H.; Gunawan, I.

doi:10.28930/jitkt.v1i2.7869

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…Unfortunately, due to the lack of sufficient data on mass sediment accumulation of mangrove and seagrass soils in Indonesia, it is not possible to derive an annual carbon burial rate. 129.9 ± 9.6 (n = 32) a An average sediment dry bulk density (g ml -1 ) of 0.92 was used for terrigenous deposits ) and 1.39 for carbonates (Campbell et al 2015) b Estimated using a median surface soil C org value of 0.595 % (by sediment dry weight) for these deposits (Booij et al 2001;Pratono et al 2009) c Soil depth only to 50 cm d Range of increasing soil dry bulk densities (g ml -1 ) with soil depth (Alongi, unpublished data) Wetlands Ecol Manage Such data is urgently needed. Sequestration rates can be derived for plant biomass (assuming such stocks are not burned or clear-felled), but these are wholly inadequate because soils account for 82 and 99 % of the total carbon reserves for the archipelago's mangroves and seagrasses, respectively (Tables 1, 2).…”

Section: Discussionmentioning

confidence: 99%

Indonesia’s blue carbon: a globally significant and vulnerable sink for seagrass and mangrove carbon

Alongi

Murdiyarso

Fourqurean

et al. 2015

Wetlands Ecol Manage

180

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The global significance of carbon storage in Indonesia's coastal wetlands was assessed based on published and unpublished measurements of the organic carbon content of living seagrass and mangrove biomass and soil pools. For seagrasses, median above-and below-ground biomass was 0.29 and 1.13 Mg C ha -1 respectively; the median soil pool was 118.1 Mg C ha -1 . Combining plant biomass and soil, median carbon storage in an Indonesian seagrass meadow is 119.5 Mg C ha -1 . Extrapolated to the estimated total seagrass area of 30,000 km 2 , the national storage value is 368.5 Tg C. For mangroves, median above-and below-ground biomass was 159.1 and 16.7 Mg C ha -1 , respectively; the median soil pool was 774.7 Mg C ha -1 . The median carbon storage in an Indonesian mangrove forest is 950.5 Mg C ha -1 . Extrapolated to the total estimated mangrove area of 31,894 km 2 , the national storage value is 3.0 Pg C, a likely underestimate if these habitats sequester carbon at soil depths [1 m and/or sequester inorganic carbon. Together, Indonesia's seagrasses and mangroves conservatively account for 3.4 Pg C, roughly 17 % of the world's blue carbon reservoir. Continued degradation and destruction of these wetlands has important consequences for CO 2 emissions and dissolved carbon exchange with adjacent coastal waters. We estimate that roughly 29,040 Gg CO 2 (eq.) is returned annually to the atmosphere-ocean pool. This amount is equivalent to about 3.2 % of Indonesia's annual emissions associated with forest and peat land conversion. These results highlight the urgent need for blue carbon and REDD? projects as a means to stem the decline in wetland area and to mitigate the release of a significant fraction of the world's coastal carbon stores.

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Section: Discussionmentioning

confidence: 99%

Indonesia’s blue carbon: a globally significant and vulnerable sink for seagrass and mangrove carbon

Alongi

Murdiyarso

Fourqurean

et al. 2015

Wetlands Ecol Manage

180

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“…Teluk Jakarta merupakan muara dari 13 sungai (Prartono et al, 2009), yang mana curah hujan di sekitar daerah aliran sungai (DAS) sungai-sungai tersebut diangkut menuju Teluk Jakarta. Input dari sungai tentu mempengaruhi volume air di sekitar Teluk Jakarta, dan dapat menyebabkan banjir dari arah Teluk Jakarta menuju daratan sekitarnya.…”

Section: Pendahuluanunclassified

Kajian Statistik Ukuran Besar Butir Sedimen Dan Kaitannya Dengan Variabilitas Iklim Musiman Dan Tahunan Di Muara Gembong, Teluk Jakarta

Syachputra

Radjawane

Zuraida³

2019

J. Ilmu dan Teknologi Kelautan Tropis

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Variabilitas iklim dapat mempengaruhi sifat sedimen yang terendapkan di dasar laut. Salah satu sifat sedimen yang dipengaruhi oleh iklim adalah besar butir. Penelitian ini bertujuan untuk menguji hubungan antara besar butir dengan variabilitas iklim menggunakan sampel core GM01-2010-TJ22 dari Muara Gembong, Teluk Jakarta, muara sungai Citarum. Sampel core diambil pada tahun 2010 dengan menggunakan Kapal Riset Geomarin I oleh Pusat Penelitian dan Pengembangan Geologi Kelautan (P3GL). Pengukuran besar butir dilakukan dengan menggunakan Mastersizer 2000. Hasil pengukuran ditampilkan dalam seri waktu dari tahun 2001 sampai 2010. Hasil analisis besar butir sampel sedimen dikorelasikan secara statistik dengan fenomena musiman (monsun), tahunan dan antar tahun (El Niño/La Niña dan Dipole Mode). Verifikasi data dilakukan dengan menggunakan data sekunder temperatur permukaan laut dari citra satelit di sekitar lokasi sampel dan data curah hujan di Bekasi. Hasil verifikasi menunjukkan bahwa peningkatan curah hujan di sekitar daerah hilir Sungai Citarum diikuti dengan penurunan temperatur permukaan laut dan peningkatan ukuran rata-rata besar butir. Hasil yang didapat dalam uji statistika menunjukkan bahwa perubahan ukuran besar butir sampel sedimen di Muara Gembong memiliki korelasi signifikan dengan Multivariate ENSO (El Niño Southern Oscillation) Index (MEI), Ocean Niño Index (ONI), Dipole Mode Index (DMI) dan Australian Monsoon Index (AUSMI). Hasil tersebut menunjukkan bahwa besar butir sedimen dasar laut potensial digunakan untuk mengetahui variabilitas iklim di sekitar Teluk Jakarta.

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Organochlorine Pesticides in the Coastal Sediment of Citarum Estuary, Jakarta Bay: The Imp Ortant Role of Fine Fraction of the Sediment as Their Agent Transport and Processes of Their Early Diagenesis

Cited by 2 publications

References 11 publications

Indonesia’s blue carbon: a globally significant and vulnerable sink for seagrass and mangrove carbon

Indonesia’s blue carbon: a globally significant and vulnerable sink for seagrass and mangrove carbon

Kajian Statistik Ukuran Besar Butir Sedimen Dan Kaitannya Dengan Variabilitas Iklim Musiman Dan Tahunan Di Muara Gembong, Teluk Jakarta

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