Judul: Studi Pembangunan Kawasan Perdesaan untuk Pemantapan Sistem Perlindungan Lahan Pertanian Pangan di Kabupaten Pandeglang.
Abstrak: Peningkatan jumlah penduduk di Pulau Jawa berpengaruh pada peningkatan kebutuhan lahan untuk aktivitas masyarakat. Hal ini menjadi salah satu pendorong terjadinya alih fungsi lahan pertanian menjadi lahan non pertanian. Di sisi lain, kebutuhan pangan yang semakin meningkat membuat pemerintah harus menetapkan kebijakan perlindungan lahan pertanian pangan agar tidak dialih fungsikan. Upaya pengendalian alih fungsi lahan pangan perlu melihat faktor-faktor yang mempengaruhi alih fungsi lahan di masing-masing wilayah. Sehingga, program yang ditetapkan lebih efektif karena mampu menjawab permasalahan yang dihadapi masyarakat khususnya pemilik lahan. Penelitian ini bertujuan untuk mengidentifikasi faktor yang mempengaruhi alih fungsi lahan di Kabupaten Pandeglang dan merumuskan pengembangan kawasan perdesaan di wilayah penelitian. Identifikasi faktor yang mempengaruhi alih fungsi lahan pertanian pangan di Kabupaten Pandeglang dilakukan dengan metode deskriptif dan uji regresi ordinal. Sedangkan penyusunan rumusan pembangunan kawasan perdesaan menggunakan AHP dan analisis deskriptif. Hasil penelitian menunjukkan bahwa faktor yang mempengaruhi alih fungsi lahan adalah luas penguasaan lahan sawah, B/C rasio usaha tani padi, dan kondisi jalan. Pembangunan kawasan perdesaan dalam mendukung sistem PLP2B harus dilakukan melalui bisnis kawasan. Pengembangan bisnis di tingkat kawasan perdesaan dengan melibatkan peran masyarakat dan pemerintah desa akan mampu mendongkrak ekonomi petani karena usaha pertaniannya menguntungkan. Hal ini akan membuat petani mempertahankan sawahnya, sehingga alih fungsi lahan akan terhambat dengan sendirinya
Keyword: alih fungsi lahan, perlindungan lahan pertanian pangan, sawah, kawasan perdesaan, bisnis kawasan

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: Enhancement of photon absorbtion on BaxSr1-xTiO3 thin films semiconductor using photonic crystals.
Abstrak: In this research, has been conducted BaxSr1-xTiO3 (BST) thin films manufacturing for mole fraction x = 0.25, 0.35, 0.45, and 0.55; and concentration of 1 molar using chemical solution depositon (CSD) method. The materials, which are used in this research, are barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%], titanium isopropoxide [Ti(C12O4H28), 97.999%], gallium trioxide [Ga2O3], 2-methoxyethanol [H3COOCH2CH2OH, 99%] and 1 x 1 cm of transparent conductive oxide (TCO) glass as substrate. Two BST thin films are made that for BST thin films which are doped by 10% galium (BGST) as p-type layer and pure BST solution as n-type. BST solution is made by reacting barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%] and titanium isopropoxide [Ti(C12O4H28)] into 2-methoxyethanol solvent [H3COOCH2CH2OH, 99%] in accordance with mass gram for each x value. While, BGST solution is made in the same way as BST solution, plus adding gallium at 10% of the mass of BST. Once all materials are reacted, then vibrated using ultrasonic for 90 minutes, and followed by coating BGST / BST on the TCO substrate. Once the layer is formed, then annealed for 15 hours at temperature of 500 °C with increasing rate of 1.67 oC/minute. Characterizations of BST thin films with or without photonic crystals include the absorbance and transmittance in the visible light spectrum, as well as the electrical photoconductivity characterizations. From BST thin films without photonic crystals indicate that our thin films have light absorption area on almost the entire range of the visible light spectrum even to the infrared range with absorption value over than 67.6%, in addition, it can be seen that the maximum absorbance of BST thin films for all mole fractions lie in blue to green light spectrum region, 457 nm ≤ λ ≤ 570 nm and the minimum in yellow to red light spectrum region, 570 nm ≤ λ ≤ 678 nm. The largest absorbance is found at x = 0.25 with average absorbance value of 92.04% and maximum and minimum absorbance peaks at wavelength of 500.89 and 657.72 nm, respectively. At x = 0.35, average absorbance value decreased to 83.55% with maximum and minimum peaks at 505.73 and 613.68 nm, respectively. Then increased to 91.16% at x = 0.45 with maximum and minimum peaks at 506.04 and 618.56 nm, respectively. At x = 0.55, average absorbance value decreased to 80.12% with maximum and minimum peaks at 507.85 and 608.79 nm, respectively. Moreover, it can be seen that the addition of barium mole fraction leads to wider maximum absorbance or minimum transmittance peaks and narrower minimum absorbance or maximum transmittance peaks in the same range of the green and blue & red light spectrums, respectively. BST thin films with photonic crystals show increasing in absorption for all x values in the range of 3.04 into 13.33%. At x = 0.25, average absorbance percentage increased 3.96% from 92.4 into 95.68%, for x = 0.35 average percentage increased 7.07% into 89.45 from 83.55%. Furthermore, average absorbance of BST thin films at x = 0.45 increased 3.04% from 91.16 into 93.93% and x = 0.55 has
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