Karakteristik Sebaran Sedimen Pantai Utara Jawa Studi Kasus: Kecamatan Brebes Jawa Tengah

Gemilang, Wisnu Arya; Rahmawan, Guntur Adhi; Dhiauddin, Ruzana; Wisha, Ulung Jantama

doi:10.15578/jkn.v1i2.6456

Cited by 11 publications

(19 citation statements)

References 13 publications

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“…Klasifikasi ukuran butir dilakukan berdasarkan klasifikasi Wentworth (1992). Penentuan jenis sedimen dilakukan berdasarkan klasifikasi Diagram Segitiga Shepard tahun 1954 (Gemilang et al, 2018)…”

Section: Analisis Jenis Ukuran Butir Sedimenunclassified

Simpanan Karbon Organik Dalam Sedimen Mangrove Terhadap Pasang Surut Di Pulau Bintan

et al. 2021

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Ekosistem mangrove memberikan kontribusi terbesar pada kawasan pesisir dalam penyerapan karbon dari atmosfer serta penyimpanan karbon dalam bentuk biomassa ataupun terpendam di dalam sedimen. Variasi simpanan karbon pada sedimen mangrove sangat tergantung dengan struktur komunitas dan karakter oseanografi yaitu pasang surut. Tujuan penelitian ini adalah untuk menganalisis variasi nilai simpanan karbon sedimen mangrove di Pulau Bintan serta menganalisis hubungannya dengan karakter pasang surut. Lokasi penelitian memiliki karakter struktur komunitas mangrove yang berbeda, yaitu Desa Lagoi yang didominasi oleh jenis Ceriops tagal, dan Desa Kawal yang didominasi oleh jenis Rhizophora apiculata. Setiap lokasi penelitian dibagi menjadi tiga zona tegak lurus garis pantai berdasarkan parameter dominansi jenis. Parameter yang diukur yaitu ukuran butir sedimen, struktur komunitas mangrove, karbon sedimen dan pasang surut. Data karbon organik dan ukuran butir sedimen menggunakan metode wet sieving dan LOI, sedangkan untuk pasang surut diperoleh dari Badan Informasi Geospasial (BIG). Hasil penelitian menujukan bahwa simpanan karbon organik sedimen yang lebih besar ditemukan di wilayah yang memiliki ukuran butir yang lebih halus dengan arus dan tenggang waktu menuju surut yang lebih rendah serta rerata ukuran dan tinggi mangrove yang lebih besar. Tenggang waktu menuju surut lebih cepat akan mengakibatkan perputaran sedimen dan serasah cepat sehingga pengendapan sedimen dan serasah berkurang. Simpanan karbon organik sedimen mangrove memiliki perbedaan yang cukup signifikan di Kawal dan Lagoi dengan rerata sebesar 13,90 ton C ha-1 dan 7,64 ton C ha-1. Mangrove ecosystems provide the largest contribution to coastal areas in absorbing carbon from the atmosphere and storing carbon in the form of biomass or buried in sediments. The variation of carbon storage in mangrove sediments is highly dependent on the community structure and the oceanographic character of the tides. The purpose of this study was to analyze variations in the value of carbon storage of mangrove sediments in Bintan Island and to analyze their relationship with tides. The research location has a different character of mangrove community structure, namely Lagoi Village which is dominated by the Ceriops tagal species, and Kawal Village which is dominated by the Rhizophora apiculata species. Each research location is divided into three zones perpendicular to the coastline based on the parameter of species dominance. Parameters measured were sediment grain size, mangrove community structure, sediment carbon and tides. Organic carbon and sediment grain size data using wet sieving and LOI methods, while tides were obtained from the Geospatial Information Agency (BIG). The results showed that larger organic sediment carbon stores were found in areas that had finer grain sizes with lower currents and time periods to tide and larger mean size and height of mangroves. The time to recede faster will result in rapid circulation of sediment and litter so that sediment and litter deposition is reduced. The organic carbon storage of mangrove sediments has a significant difference in Kawal and Lagoi with an average of 13.90 tonnes C ha-1 and 7.64 tonnes C ha-1.

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Section: Analisis Jenis Ukuran Butir Sedimenunclassified

Simpanan Karbon Organik Dalam Sedimen Mangrove Terhadap Pasang Surut Di Pulau Bintan

et al. 2021

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“…The sediment transport process is controlled by currents to be deposited if the finer particles of sediment in terms of grain size. The predominance of sediment in the form of sand is because the area is part of the sea waters adjacent to the main river estuary around the study site (Gemilang et al, 2018). The sediment fraction brought not only from one river but also from another river.…”

Section: The Characteristic Of Bottom Sediment In Lekok Coastal Watersmentioning

confidence: 99%

“…This condition explains that the source of sediment originating from the sea then undergoes a transportation process that eventually undergoes a process of deposition into the sediment at each location. Also, the coarser grain size is assumed to be the result of the process of grinding the sand shoals (sand islands) by waves, which then transport at the front of the water bottom (Gemilang et al, 2018). The difference in grain size in sediments is very closely related to the source of the sediment derived.…”

Section: The Characteristic Of Bottom Sediment In Lekok Coastal Watersmentioning

confidence: 99%

“…Briefly stated that the strength of each oceanographic parameters are similar so that sediment grains undergoing precipitation tend to be the same (Rifardi, 2012). Besides, the process of the meeting between river currents and ocean currents can cause gradations of current energy (Gemilang et al, 2018). This sorting value indicates the type of deposition, the characteristics of the settling current, and the settling time speed (Solahuddin et al, 2006).…”

Section: Statistical Interpretation Of Sediment Grain Sizementioning

confidence: 99%

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Characteristic of Sediment at Lekok Coastal Waters, Pasuruan Regency, East Java

Anggraini¹,

Yanuhar²,

Risjani³

2020

J. Ilmu dan Teknologi Kelautan Tropis

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Sedimentation is one of the dynamics that occur in coastal areas to determine the condition of the coast. Lekok coastal water is one of the open water areas that have very fluctuating dynamics in coastal changes. The structural study of sediment distribution conducted in this location is used to provide information about the process of transportation and sedimentation based on the distribution of sediment grain size. This study aims to determine the horizontal grain sediment size in the Lekok coastal waters. This research was conducted at nine sampling points by sampling in the form of primary sediments randomly using the grab sampler method. Furthermore, further analysis is done by the gravimetric method. Based on the results of the study note that sediments characteristic in Lekok coastal water are generally dominated by three types of sediments, namely: sandy loam, loam, and silt loam. Sorting values are in a well-sorted to the moderately well-sorted condition where the sediment conditions are well sorted. The skewness value is skewed positively, where the value indicates a positive skewed sedimentary condition. The value of kurtosis is in the leptokurtic condition where the sediment from station 1 to station 9 is homogeneous.

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“…Fasies hidrogeokimia CaHCO3 cukup mendominasi distribusinya di area penelitian. Fasies CaHCO3 merupakan ciri khas pada air tanah tawar dan relatif berada pada kedalaman dangkal (Gemilang et al, 2018).…”

Section: Gambar 6 Diagram Trilinier Piper Memperlihatkan Karakteristiunclassified

Karakteristik Hidrogeokimia Akuifer Tak Terkekang Kawasan Pesisir Pulau Weh, Aceh

Gemilang¹,

Hasanah²,

Wish³

2019

JSDA

Self Cite

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Marine tourism development in the Weh Island, Aceh Province needs several supports to enhance the amount of tourism visits such as groundwater availability. Groundwater quality evaluation in the unconfined aquifer systems is essential to assess the ground water advisability. One of the evaluation methods to observe the quality and characteristics of groundwater is physical and chemical parameters measurements completed by geological conditions and groundwater hydrogeochemical characteristics. Ground water facies is divided into five types including CaHCO3, CaCl, NaCl, NaHCO3, and the solution of CaMgCl. Rock weathering is the main factor to determine facies type of groundwater in Weh Island. As much as 54.55% of ground water samples are influenced by the seawater according to Na/Cl ratio. Based on the distance from coastline to Na and Cl elements, it shows a correlation by which the closer toward coastal, the higher salinity level of groundwater. Nevertheless, the entire samples occupy the requirement for daily consumption and utilization according to standardization by WHO, 1993 and Ministry of Health No: 492/MENKES/PER/IV/2010. Therefore, the fresh water provision that is feasible to support marine tourism development in Weh Island can be provided, despite the interpretation result of groundwater chemical data, seawater influence on groundwater takes place.

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Karakteristik Sebaran Sedimen Pantai Utara Jawa Studi Kasus: Kecamatan Brebes Jawa Tengah

Cited by 11 publications

References 13 publications

Simpanan Karbon Organik Dalam Sedimen Mangrove Terhadap Pasang Surut Di Pulau Bintan

Simpanan Karbon Organik Dalam Sedimen Mangrove Terhadap Pasang Surut Di Pulau Bintan

Characteristic of Sediment at Lekok Coastal Waters, Pasuruan Regency, East Java

Karakteristik Hidrogeokimia Akuifer Tak Terkekang Kawasan Pesisir Pulau Weh, Aceh

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