Judul: Indeks keberlanjutan lahan sawah untuk mendukung penataan ruang : Studi kasus di pulau Jawa, Rice field sustainability index for supporting spatial use management: case study in Java island
Abstrak: Pulau Jawa sebagai lumbung beras nasional berperan penting dalam menjaga ketahanan pangan nasional. Rapuhnya ketahanan pangan di pulau Jawa dapat mengancam keutuhan Negara Kesatuan Republik Indonesia (NKRI). Saat ini, keberlanjutan lahan sawah di pulau Jawa yang berperan menjaga ketahanan pangan nasional tersebut sedang menghadapi masalah karena peningkatan jumlah penduduk yang dapat mengakibatkan peningkatan konsumsi pangan dan kebutuhan lahan permukiman. Penelitian ini bertujuan untuk: (1) menetapkan zona agroekologi lahan sawah sebagai basis kajian keberlanjutan, (2) menentukan daya dukung lahan sawah di setiap wilayah provinsi, (3) menentukan indeks keberlanjutan pertanian lahan sawah berdasarkan zona agroekologi, dan (4) merumuskan alternatif kebijakan pengelolaan lahan sawah berdasarkan zona agroekologi untuk mendukung penataan ruang dalam rangka mewujudkan pertanian lahan sawah berkelanjutan., A Java island, rice bowl of Indonesia, plays an important role in protecting the national food security. The weekness of the national food security threatens the national unity of the Republik of Indonesia (NKRI). Currently, the sustainability of rice fields of Java which supports the national food security is facing the problems due to the increase of population which causes multidimensional impacts.
Keyword: Rice field agro-ecological zone, Spatial use management, Rice field sustainability, Common pool resource

Judul: Dampak Konversi Lahan Sawah di Jawa dan Luar Jawa terhadap Ketersediaan dan Akses Pangan Nasional
Abstrak: To ensure sustainable food availability and accessibility in Indonesia, it is needed the policy that could reduce the persistent wetland conversion in Java that tends to incerase, since Java has been contribution of 60 percent of national rice. This study disaggregated into Jawa and outside Java. The purposes of this study are at: (1) analyzing the factors affecting wetland conversion in Java and outside Java, (2) analyzing the impacts of wetland conversion in Java and outside Java on national food availability and accessibility, (3) analyzing the impact of economic policies implementation in agricultural sector on national food availability and accessibility, as well as on changing of welfare indicators. The model specification was done that included dynamic simultaneous equations which consisted of 19 behavioral equations and 22 identities, model identification performed by using the order condition criteria, while model estimation conducted by employing 2-SLS method. The results of study indicated that wetland conversion has had been compensated by import. Therefore, decreased food availability and accessibility per capita were under-estimated. Price policy became ineffective if at the same time the government also ran import rice policy. The mix policies implementation through instruments: increased the real price of unhusked rice of by 15 percent, decreased the real price of Urea fertilizer of by 10 percent and decreased import quotas of by 37.5 percent were considered as the best policy when wetland conversion increased by 1 percent. This mix policy has positive impact both on producers (farmers) and government; except for consumer. Development of economic region that still focused in Java should be directed to the outside Java in order to reduce the persistent wetland conversion by implementing locally specific policies.
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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