Judul: Analisis Karakteristik Wilayah untuk Memahami Perubahan Penggunaan Lahan di Kecamatan Panimbang, Pandeglang
Abstrak: Pengembangan Kawasan Ekonomi Khusus (KEK) Tanjung Lesung diduga sebagai pemicu terjadinya perubahan penggunaan lahan di Kecamatan Panimbang. Hal tersebut dikhawatirkan akan mengganggu luasan lahan pertanian di Kecamatan Panimbang. Penelitian ini bertujuan untuk mengidentifikasi perubahan sebaran penutupan lahan/penggunaan lahan periode 2002-2020, mengidentifikasi luas perubahan penggunaan lahan periode 2012-2020 dan menganalisis pengaruh karakteristik wilayah terhadap penggunaan lahan di Kecamatan Panimbang. Hasil analisis menunjukkan bahwa karakteristik wilayah mempengaruhi perubahan penggunaan lahan di Kecamatan Panimbang. Tegalan merupakan penggunaan lahan yang paling banyak mengalami perubahan dengan penurunan luasan sebesar 4793 ha, sekitar 48% luas total Kecamatan Panimbang. Di bagian timur, terjadi perubahan tegalan menjadi permukiman. Hal tersebut berkaitan dengan nilai tanah, karena lokasinya yang berada di sekitar jalan dan dekat dengan pasar. Selain itu terjadi perubahan tegalan menjadi sawah yang dipengaruhi adanya irigasi, dengan luas sebesar 2385 ha (24%). Sedangkan di bagian barat, terjadi perubahan tegalan menjadi semak belukar dengan luas sebesar 893 ha (9%). Semak belukar banyak dikuasai oleh warga luar dicerminkan dari status tanah yang banyak belum terdaftar. Hal tersebut dikarenakan nilai tanah yang masih rendah (Rp. <1000020000/m2), meskipun lokasinya dekat dengan KEK Tanjung Lesung. Semak belukar tersebut berada di kawasan perkebunan berdasarkan Rencana Tata Ruang Wilayah (RTRW), sehingga masuk kedalam kawasan transisi., The development of the Tanjung Lesung Special Economic Zone (SEZ) is suspected to be the trigger for land use changes in Panimbang District. It is feared that it will disrupt the area of agricultural land in Panimbang District. This study aims to identify changes in the distribution of land cover/land use for the period 2002-2020, identify land change area of land use for the period 2012-2020 and analyze the influence of regional characteristics on land use in the District of Panimbang. The results of the analysis show that the regional characteristics affect land use changes in Panimbang District. Dry land farm is the land use that has changed the most with a decrease in area of 4793 ha, about 48% of the total area of Panimbang District. In the east, there is a change in the dry land farm to make use of it. This is related to the value of the land, because of its location near the road and close to the market. In addition, there was a change from the dry land farm to paddy fields which was influenced by irrigation, with an area of 2385 ha (24%). Meanwhile, in the western part, the dry land farm was changed into shrubs with an area of 893 ha (9%). Many of the shrubs are controlled by outsiders, which is reflected in the land status which has not been recorded. This is because the land value is still low (Rp. <10000-20000/m2), although the location is close to the Tanjung Lesung SEZ. The shrubs are located in the plantation area based on the Regional Spatial Plan (RTRW), so they are included in the transition area.
Keyword: Land Value, Land Use Change, RTRW, Land Status

Judul: Study of Land Use Change Before and After  the Tsunami Using Satellite Imagery in Panimbang District, Banten
Abstrak: Pesisir Kecamatan Panimbang, Kabupaten Pandeglang, Provinsi Banten merupakan salah satu wilayah yang terdampak bencana tsunami Selat Sunda pada 22 Desember 2018 yang mengakibatkan kerusakan pesisir. Tujuan dari penelitian ini yaitu mengetahui perubahan penggunaan lahan pasca tsunami yang terjadi di Pesisir Kecamatan Panimbang, Kabupaten Pandeglang, Provinsi Banten pada tahun 2018 menggunaan citra Sentinel-2A tahun 2018 dan 2021, menggunakan algoritma Maximum Likelihood. Klasifikasi menghasilkan 5 kelas yaitu, hutan, perkebunan, sawah, permukiman, dan pasir dengan luas total 9983.98 ha. Luas perkebunan menurun sebesar 2212.07 ha dengan persentase penurunan 22.16%. Kelas permukiman mengalami penurunan luas sebesar 63.52 dengan persentase penurunan 0.64%. Kelas pasir mengalami peningkatan luas sebesar 40.56 ha dengan persentase 0.41%. Hutan mengalami peningkatan luas sebesar 1215.48 ha dengan persentase 12.17%. Sawah mengalami peningkatan luas sebesar 1019.55 ha dengan persentase 10.21%. Akurasi (overall accuracy) klasifikasi penggunaan lahan tahun 2018 dan 2021 berturut-turut sebesar 90.37% dan 90.55%., The coastal Panimbang District, Pandeglang Regency, Banten Province is one of the areas affected by the Sunda Strait tsunami disaster on December 22, 2018, which caused coastal damage. The purpose of this study is to determine land use changes after the tsunami that occurred on the coast of Panimbang District, Pandeglang Regency, Banten Province 2018 using Sentinel-2A imagery in 2018 and 2021, using the Maximum Likelihood algorithm. The classification produces 5 classes, namely, forests, plantations, rice fields, settlements, and sand with a total area of 9983.98 ha. The plantation area decreased by 2212.07 ha with a percentage decrease of 22.16%. The residential class experienced a decrease in the area by 63.52 with a percentage decrease of 0.64%. The sand class experienced an increase in the area of 40.56 ha with a percentage of 0.41%. The forest experienced an increase in the area of 1215.48 ha with a percentage of 12.17%. Rice fields experienced an increase in the area of 1019.55 ha with a percentage of 10.21%. The overall accuracy of land use classification in 2018 and 2021 was 90.37% and 90.55%, respectively.
Keyword: Coastal, Land Use, Maximum Likelihood, Tsunami, Penggunaan Lahan, Pesisir

Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
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