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Deteksi Perubahan Luasan Mangrove Teluk Youtefa Kota Jayapura [PAPER]

Deteksi Perubahan Luasan Mangrove Teluk Youtefa Kota Jayapura Menggunakan Citra Landsat Multitemporal ~ Baigo Hamuna, Rosye H.R. Tanju...


Deteksi Perubahan Luasan Mangrove Teluk Youtefa Kota Jayapura Menggunakan Citra Landsat Multitemporal
~ Baigo Hamuna, Rosye H.R. Tanjung

Abstract

Kondisi mangrove di kawasan Teluk Youtefa, baik dari aspek kualitas maupun kuantitasnya terus mengalami penurunan dari tahun ke tahun. Penelitian ini dilakukan untuk mengetahui seberapa besar perubahan luasan mangrove yang terjadi di kawasan Teluk Youtefa, Kota Jayapura dari tahun 1994 sampai tahun 2017 dengan menggunakan citra satelit Landsat 5 TM dan Landsat 8 OLI. Pengamatan kondisi mangrove di lapangan dilakukan dengan menggunakan GPS dan pengolahan citra menggunakan algoritma NDVI dengan klasifikasi supervised. Tumpang susun peta hasil interpretasi citra satelit untuk mengetahui sebaran dan perubahan luasan kawasan mangrove. Hasil penelitian menunjukan bahwa luasan mangrove pada tahun 1994 sebesar 392,45 ha dan luasan mangrove pada tahun 2017 mengalami penurunan menjadi 233,12 ha. Perubahan luasan mangrove dalam kurun waktu 23 tahun sebesar 159,34 ha atau sebesar 40,59%. Perubahan kawasan mangrove pada umumnya disebabkan oleh faktor antropogenik seperti penebangan, perubahan fungsi kawasan mangrove menjadi jalan, jembatan, pemukiman dan perubahan secara alami.


ABSTRACT

The condition of mangrove in Youtefa Bay both qualitatively and quantitatively has decreased from year to year. This research was conducted to determine how much of the change occurring mangrove area in Youtefa Bay, Jayapura City from 1994 to 2017 by using Landsat 5 TM images and Landsat 8 OLI. Monitoring of mangrove condition in the field used GPS, and processing of images used NDVI algorithm with supervised classification. The map was overlaying satellite imagery interpretation to determine the distribution and changes of mangrove area. The result of research showed that the mangrove area in 1994 was about 392.45 hectares, mangrove area in 2017 have decreased becoming was 233.12 hectares. Changing of mangrove area for 23 years was about 159.34 hectares or 40.59%. Changes in mangrove were generally caused by anthropogenic factors such as logging, changes over the function of mangroves into the road, bridge, settlement, and change naturally.

Keywords

Landsat; Mangrove; Perubahan Luasan; Teluk Youtefa

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RSGIS INDONESIA: Deteksi Perubahan Luasan Mangrove Teluk Youtefa Kota Jayapura [PAPER]
Deteksi Perubahan Luasan Mangrove Teluk Youtefa Kota Jayapura [PAPER]
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RSGIS INDONESIA
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