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Rahayu, Risma Warni
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science

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Perubahan Luas Dan Kerapatan Mangrove Di Kawasan Pesisir Kota Serang, Banten Yudha, Indra Gumay; Rahayu, Risma Warni; Yuliana, Darma; Damai, Abdullah Aman
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.4058

Abstract

Perubahan luas dan kerapatan mangrove memiliki pengaruh yang besar terhadap keberlangsungan fungsi ekosistem di wilayah pesisir. Penelitian ini bertujuan untuk menganalisis perubahan luas dan kerapatan mangrove di Kota Serang, Banten. Metode yang digunakan adalah penginderaan jauh melalui interpretasi citra Landsat 5 dan Landsat 8 dengan analisis terhadap perubahan luas dan kerapatan mangrove pada tahun 2011 dan 2021. Prosedur penelitian dilakukan dengan mengelompokkan nilai NDVI ke dalam 3 kelas vegetasi, yaitu jarang, sedang, dan rapat. Selanjutnya dilakukan ground check untuk menguji tingkat akurasi data terhadap tutupan kanopi mangrove dengan metode hemisperichal photography. Hasil penelitian menunjukkan bahwa tingkat akurasi citra pada tahun 2021 sebesar 90%. Berdasarkan analisis tersebut diketahui bahwa telah terjadi penurunan luas dan perubahan kerapatan mangrove di Kelurahan Sawah Luhur, sedangkan di Kelurahan Banten justru mengalami peningkatan. Secara umum, di wilayah pesisir Kota Serang terjadi penurunan luas mangrove antara 2011-2021 yang mencapai 13,95 ha dengan penurunan utama terjadi pada mangrove dengan kelas vegetasi jarang (33,14 ha). Sebaliknya, mangrove dengan kategori kerapatan sedang dan rapat justru meningkat hingga 19,19 ha. Penurunan luas mangrove tersebut akibat abrasi alih fungsi menjadi tambak, serta penebangan illegal. Hasil analisis juga menunjukkan bahwa korelasi nilai NDVI dengan persentase tutupan kanopi memiliki nilai 0,696 yang masuk dalam kategori kuat.
Perubahan Luas Dan Kerapatan Mangrove Di Kawasan Pesisir Kota Serang, Banten Yudha, Indra Gumay; Rahayu, Risma Warni; Yuliana, Darma; Damai, Abdullah Aman
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.4058

Abstract

Changes in the area and density of mangroves have a major impact on the sustainability of ecosystem functions in coastal areas. This study aims to analyze changes in the area and density of mangroves in Serang City, Banten. The method used is remote sensing through interpretation of Landsat 5 and Landsat 8 images with analysis of changes in the area and density of mangroves in 2011 and 2021. The research procedure was carried out by grouping NDVI values ​​into 3 vegetation classes: sparse, moderate, and dense. Furthermore, a ground check was carried out to test the level of data accuracy against mangrove canopy cover using the hemispherical photography method. The results showed that the level of image accuracy in 2021 was 90%. Based on this analysis, it is known that there has been a decrease in the area and changes in mangrove density in Sawah Luhur Village, while in Banten Village it has increased. In general, in the coastal area of ​​Serang City, there was a decrease in the mangrove area between 2011-2021 which reached 13.95 ha with the main decrease occurring in mangroves with sparse vegetation class (33.14 ha). In contrast, mangroves with medium and dense density categories increased to 19.19 ha. The decrease in mangrove area was due to abrasion, conversion into ponds, and illegal logging. The results of the analysis also showed that the correlation between NDVI values ​​and the percentage of canopy cover had a value of 0.696 which was included in the strong category.
Co-Authors Abdullah Aman Damai Indra Gumay Yudha Yuliana, Darma