Judul: The development directions of Agricultural Land for Paddy and  Banana commodities in Pidie Regency, Aceh Province
Abstrak: Struktur perekonomian Kabupaten Pidie di dominasi oleh sektor pertanian. Komoditas pertanian unggulan kabupaten ini diantaranya padi dan pisang. Meningkatnya jumlah penduduk dan perkembangan wilayah menyebabkan persaingan penggunaan lahan. Penelitian ini bertujuan mengidentifikasi jenis tutupan lahan tahun 2003, 2011, 2019 serta pola perubahannya, menganalisis ketersediaan lahan, dan menentukan arahan pengembangan lahan pertanian untuk komoditas padi dan pisang di Kabupaten Pidie. Metode yang digunakan dalam penelitian ini adalah menumpang-susunkan peta tutupan lahan, ketersediaan, dan kesesuaian lahan menggunakan software ArcGIS. Hasil penelitian: terdapat 11 jenis tutupan lahan. Perubahan tutupan lahan terluas pada tahun 2003 sampai 2011 yaitu pertanian lahan kering menjadi pemukiman, sedangkan tahun 2011 sampai 2019 yaitu sawah menjadi pemukiman. Lahan yang tersedia untuk pengembangan padi 3.246,09 ha, pisang 1.933 ha, padi dan pisang 903,82 ha, sedangkan lahan yang tidak tersedia 283.194,48 ha. Luas lahan yang diarahkan pengembangannya untuk komoditas padi dan pisang yaitu 5.869,76 ha dan 283.384,17 ha termasuk dalam lahan yang tidak direkomendasikan., Economical structure in Pidie Regency dominates of agricultural sector. The primary agricultural commodities of this region were paddy and banana. Improving in population and regional development leads to competition to land. This research aims to identify the land cover types in 2003, 2011, 2019 and their patterns of change, analyze land availability, and determine the development directions of agricultural land for paddy and banana commodities in Pidie Regency. The research method is the overlay maps of land cover, availability, and land suitability using ArcGIS software. The results: there were 11 types of land cover. The highest changes of land cover from 2003 to 2011 occurred in dry land farming into settlements, while for paddy field the highest changes in 2011 to 2019 into settlements. Land available aims to develop paddy 3.246,09 ha, banana 1.933 ha, paddy and banana 903,82 ha, while the land is not available 283.194,48 ha. The available land area for agriculture development including paddy and banana commodities 5.869,76 ha and 283.384,17 ha included for not recommended land area. Keywords: land-use change, land availability, land cover, spatial patterns
Keyword: land-use change, land availability, land cover, spatial patterns

Judul: Land Use Planning for Paddy Field Development in Pandeglang Regency
Abstrak: Food security is a big issue in Indonesia due to the availability of agricultural land caused by land conversion, especially in Java Island, is continually decreasing. Food security is the condition to meet food demand for the state to individuals, as reflected in the availability of sufficient food, both in quantity and quality, safe, diverse, nutritious, equitable, and affordable, and does not conflict with religion, belief, and culture of the community, to live a healthy life, active life, and productive in a sustainable manner. Therefore, the availability of agricultural land is one of the things that should be considered to ensure future food security, since agricultural land has a comprehensive function covering economic, social, and environmental aspects. However, the trend of agricultural land conversion in Java Island is very concerning. Several policies have been issued to tackle this problem, mainly LP2B (protected agricultural area) and the zoning regulation in spatial planning. However, further directives on these policies must also be formulated to give a further insight and some more comprehensive strategies on agricultural development. Pandeglang Regency is the largest rice production area in Banten Province, with the agricultural sector as the main economic activity in this region. Pandeglang Regency has potential in the agricultural sector, and agricultural land for food agricultural commodities, especially lowland rice, has the potential to be developed. Pandeglang Regency is also experiencing growth due to the enactment of Tanjung Lesung as a Special Economic Zone and various infrastructure development. However, the allocation and strategy for the agricultural area, especially rice/paddy fields, are still lacking and not detailed enough. Therefore, the analysis of the availability and needs of food land can be used to determine the minimum need for food land in Pandeglang Regency. This research aims to give directives on planning and development for the paddy field in Pandeglang Regency by giving an insight on its characteristics, availability, suitability, and potential in each region to be developed based on the spatial analysis result. The dynamics of land use change over the last 13 years in Pandeglang Regency are dominated by the increase of settlement areas, and the decrease of paddy field in contrast. The tradeoff between settlement and paddy field appears to be disproportional, where the rate of increase in settlement area is significantly bigger than the decrease of paddy field, meaning that the settlement area also converts other land uses as well. The other land uses experienced fluctuating change, such as plantation, shrubs, mix garden and bare land. Then this landuse trend are followed with CA-Markov prediction with business as usual (BAU) scenario. The prediction reached a good level of accuracy with kappa index of 0.89, with the end-year for land use prediction are set at 2031 following the year of spatial planning policy. Land use prediction using a CA-Markov method finds out that under BAU condition, settlement areas will continue to increase until the year 2031, with the rate of annual increase stays roughly the same. Meanwhile, the paddy field conversion in 2031 seems to have slowed down, following the 2012-2018 trend. It happened due to
Keyword: land use prediction, agricultural development, multi-criteria decision making, land use prediction, land evaluation, agriculture development, multicriteria decision making

Judul: Katalis Zink Ferit Tersubstitusi Cu untuk Oksidasi Benzil Alkohol
Abstrak: Katalis berperan dalam menurunkan energi aktivasi. Katalis ZnFe2O4 dan ZnFe2O4 tersubstitusi Cu disintesis menggunakan metode kopresipitasi untuk digunakan dalam oksidasi benzil alkohol. Katalis dicirikan dengan spektrofotometer inframerah (FTIR) dan difraktometer sinar-X. Spektrum FTIR menunjukkan puncak serapan dari ikatan Zn-O dan Fe-O masing-masing pada rentang 559‒575 cm-1 dan 419‒447 cm-1. Difraktogram menunjukkan terbentuknya fase tunggal Zn0.6Cu0.4Fe2O4 pada katalis ZnFe2O4 tersubstitusi Cu 20%. Benzil alkohol dioksidasi dengan sistem refluks. Konversi benzil alkohol meningkat dengan meningkatnya suhu. Kadar benzaldehida yang dihasilkan dengan katalis ZnFe2O4 tersubstitusi Cu 20% lebih tinggi dibandingkan dengan katalis ZnFe2O4 yang tidak tersubstitusi dan yang tersubstitusi Cu 60 dan 80%. Hal tersebut menunjukkan bahwa katalis ZnFe2O4 tersubstitusi Cu 20% memiliki kinerja yang lebih baik dalam oksidasi benzil alkohol menjadi benzaldehida dengan kadar benzaldehida 8.763%.
Keyword: Benzil alkohol, katalis, oksidasi, ZnFe2O4