Analisis Lahan Potensial Hutan Mangrove dengan Menggunakan Aplikasi Penginderaan Jauh di Kecamatan Pontang Tahun 2017

The existence of ecological mangrove forests in coastal areas can function as mudguards and sediment traps, including toxic wastes carried by the flow of surface water, for various aquatic biota as care areas and foraging, spawning and enlargement areas. In connection with the research conducted, mangroves are a type of vegetation that can be tapped by remote sensing imagery. Estimates of mangrove forests can be helped by using remote sensing science. Estimation of mangrove forest is based on mangrove vegetation and mangrove forest distribution which can be seen by using the results of tapping the depiction of the face of the earth through remote sensing imagery. This study aims to (1) determine the distribution of mangrove forests in Pontang Sub-district using the remote sensing approach; (2) Analyzing the potential of mangrove forest areas in Pontang Sub-District by utilizing remote sensing and identifying the management of mangrove forest areas in Pontang District, as well as their management of mangrove potential land. The remote sensing approach carried-out in this study to determine the distribution of mangrove forests, is to utilize SPOT 6 image. The method in this study was conducted, by analyzing the interpretation of visual images to determine the distribution of mangrove forests, and knowing the extent of mangrove forest distribution. The data from the validated analysis of the distribution of mangrove forests are used to see how much potential mangrove forests are available. Data from the analysis of the distribution of mangrove forests in Pontang Sub-District in 2017 shows the distribution area of mangrove forests in Pontang Sub-District of 190.28 hectares. This area has increased from the total area in 2015. Potential land for mangrove forests is analyzed by several variables including; Landform, Slope Slope, Salinity, Soil Texture, Inundation Height, Tides, and Land Use. The overlaying method of each variable produces a potential land map supported by interview data as supporting data to determine the potential and management of Pontang Sub-District mangrove forests. Potential land is dominated by ponds that are directly adjacent to the coastal border area. Efforts in the management of mangrove forest distribution, carried out by local governments, by conducting counseling and socialization to the community about the benefits of mangrove plants as a counterweight to coastal ecosystems and conducting training in mangrove cultivation. Utilization of mangrove forest as ecotourism in Pontang Sub-District, one of which is to use it as a mangrove tourism area

PENGARUH PASANG SURUT TERHADAP DINAMIKA PERUBAHAN HUTAN MANGROVE DI KAWASAN TELUK BANTEN

Luas hutan mangrove Indonesia menurun sekitar 4,5 juta ha menjadi 1,9 juta ha. Penurunan luas hutan mangrove paling dominan disebabkan oleh faktor manusia. Pemantauan tingkat kerusakan hutan mangrove dengan menggunakan metode konvensional memakan waktu lama dan mahal. Pemantauan tingkat kerusakan ini sangat penting bagi para stakeholder dalam mengelola kawasan hutan mangrove. Pemanfaatan data spasial dapat memudahkan dan mempercepat interaksi dengan benda-benda di permukaan bumi. Tahapan dalam penelitian ini meliputi tiga bagian, yaitu tahap pre-field, field dan post-field. Tahap pre-field termasuk pengumpulan data, pengolahan gambar, dan identifikasi tutupan lahan di daerah penelitian untuk setiap tahunnya. Data tutupan ekstraksi dari data citra penginderaan jauh di setiap tahun kemudian dipisahkan dari data tutupan lahan mangrove. Data tutupan lahan mangrove untuk tahun pencatatan 2017 digunakan sebagai unit analisis yang digunakan sebagai basis referensi untuk pengambilan informasi di lapangan. Tahap post-field dimaksudkan untuk memproses data yang dikumpulkan, analisis statistik, menguji keakuratan hasil perubahan dan menilai kemampuan gambar penginderaan jauh dalam mengidentifikasi hutan mangrove dan transfer fungsi utilitas mereka. Luas hutan mangrove di Kabupaten Banten sekitar 681,86 Ha. Penyebaran hutan mangrove terbesar adalah di kecamatan Tirtayasa dan Pontang. Kedua kawasan tersebut memiliki nilai persentase 29,75% dan 28,46% dari total luas hutan mangrove di Teluk Banten. Tingkat distribusi terkecil adalah Kabupaten Kramatwatu yang hanya sekitar 3,11% atau 21,19 Ha dari total luas hutan mangrove di Teluk Banten.Kata kunci: Mangrove, Dinamika perubahan mangrove, Data Spasial, Pasang SurutABSTRACTThe extent of Indonesia's mangrove forest declines from the initial area of about 4.5 million ha to 1.9 million ha. The decline in the area of mangrove forest is most dominant due to the damage caused by human factors. Monitoring the extent of mangrove forest destruction by using conventional methods takes a long time and is expensive. Monitoring this level of damage is very important for the stakeholders in managing the mangrove forest area. Utilization of spatial data can facilitate and accelerate in interacting with objects found on the surface of the earth. Stages in this research outline include three parts, namely pre-field stage, field stage and post-field stage. The pre-field stage includes data collection to be used, image processing, and land cover identification in the research area for each year of image recording. The cover data of the extraction from remote sensing image data in each recording year is then separated from mangrove land cover data. The mangrove land cover data for the recording year 2017 is then used as the unit of analysis used as the reference base for information retrieval in the field by using the sample. The post-field stage is intended to process the data collected, statistical analysis, test the accuracy of the results of changes and assess the capabilities of remote sensing images in identifying mangrove forests and transfer of their utility functions. The mangrove forest in Banten regency is about 681.86 Ha. The largest spread of mangrove forest is in Tirtayasa and Pontang sub-districts. The two sub-districts have a percentage value of 29.75% and 28.46% of the total mangrove forest area in Banten Bay. The smallest extent of distribution is in Kramatwatu District which is only about 3.11% or 21.19 Ha of the total area of mangrove forest in Banten Bay.Keywords: Mangrove, Dynamics of mangrove changes, Spatial Data, Tidal</p