Judul: Kelimpahan Mesofauna dan Makrofauna Tanah di Resort Cikaniki Kawasan Taman Nasional Gunung Halimun Salak
Abstrak: Fauna tanah memiliki peran yang penting dalam menjaga kesuburan tanah. Akan tetapi, masih banyak fauna tanah terutama mesofauna dan makrofauna di Resort Cikaniki yang belum teridentifikasi. Penelitian ini bertujuan untuk mengidentifikasi kelimpahan mesofauna dan makrofauna tanah, menganalisis pengaruh ketinggian tempat terhadap kelimpahan mesofauna dan makrofauna tanah, serta menganalisis hubungan faktor klimatis dan faktor edafis dengan kelimpahan mesofauna dan makrofauna tanah. Analisis vegetasi, pengambilan sampel tanah, dan pengukuran parameter lingkungan dilakukan pada ketinggian 950 m dpl, 1.050 m dpl, 1.150 m dpl dan lahan terbuka (1.230 m dpl). Data hasil analisis vegetasi kemudian dihitung nilai kerapatannya, sedangkan data fauna tanah dianalisis menggunakan uji BNT dan uji Korelasi Pearson. Hasil penelitian menunjukkan pada ketinggian 950 m dpl memiliki kelimpahan fauna tanah terbanyak yaitu sebesar 98 individu/m2 . Kelimpahan fauna tanah pada setiap ketinggian tempat menunjukkan hasil yang berbeda nyata. Faktor klimatis dan faktor edafis memiliki hubungan baik ke arah positif maupun negatif dengan kelimpahan mesofauna dan makrofauna tanah.
Keyword: climatic factor, edaphic factor, place altitude, soil fauna

Judul: Analysis of Soil Physical and Chemical Properties and Their Relationship with the Abundance of Soil Mesofauna and Macrofauna in Mount Gede Pangrango National Park
Abstrak: Kelimpahan fauna tanah dipengaruhi oleh berbagai faktor lingkungan meliputi faktor edafis, klimatis, dan keberadaan vegetasi di atasnya. Penelitian ini bertujuan menganalisis kelimpahan fauna tanah pada ketinggian tempat berbeda serta menganalisis pengaruh lingkungan terhadap kelimpahan fauna tanah. Penelitian dilaksanakan pada tiga ketinggian yang berbeda yaitu 1.550 m dpl, 1.650 m dpl, 1.750 m dpl, serta di lahan terbuka (1.200 m dpl). Hasil uji BNT menunjukkan kelimpahan fauna tanah yang berbeda nyata antara ketinggian 1.650 m dpl dengan lahan terbuka, sementara kelimpahan fauna tanah pada ketinggian 1.550 m dpl dan 1.750 m dpl tidak berbeda nyata pada selang kepercayaan 95%. Tutupan vegetasi turut memberikan kontribusi dalam kelimpahan fauna tanah dan dibuktikan dengan lahan terbuka yang memiliki kelimpahan fauna tanah terkecil. Hasil analisis korelasi menunjukkan bahwa intensitas cahaya dan suhu udara berkorelasi negatif, sedangkan kelembaban udara berkorelasi positif dengan kelimpahan fauna tanah. Faktor yang berkorelasi kuat dengan kelimpahan adalah berat basah serasah dan pH tanah., The abundance of soil fauna is influenced by various environmental factors including edaphic factors, climatic factors, and the presence of overlying vegetation. This study aims to analyze the abundance of soil fauna at different altitudes and analyze the influence of the environment on the abundance of soil fauna. The research was conducted at three different altitudes, namely 1.550 m asl, 1.650 m asl, 1.750 m asl, and in open land (1.200 m asl). The LSD test results showed that the abundance of soil fauna was significantly different between the altitude of 1,650 m asl and open land, while the abundance of soil fauna at an altitude of 1,550 m asl and 1,750 m asl was not significantly different at the 95% confidence interval. Vegetation cover also contributes to the abundance of soil fauna as evidenced by open land having the smallest abundance of soil fauna. The results of the correlation analysis show that light intensity and air temperature are negatively correlated, while air humidity is positively correlated with the abundance of soil fauna. Factors that are strongly correlated with abundance are litter wet weight and soil pH.
Keyword: altitude, climatic, diversity, edaphic, vegetation

Judul: Synthesis of Molybdenum Trioxide (MoO3) by Electrochemical Method for Electrochromics Application
Abstrak: Molybdenum trioxide (MoO3) thin films have been deposited on glass substrates by electrochemical method using ammonium heptamolybdate tetrahydrate ((NH4)6Mo7O244H2O). The films were deposited onto glass substrates as the control temperature at 25○C and annealing treatment at 350○C for 30 mins. The MoO3 thin films were investigated by UV-Vis, X-ray diffraction techniques (XRD), Scanning Electron Microscopy (SEM). The JCPDS card show that orthorhombic MoO3 (α- phase) has been formed. Molybdenum trioxide MoO3 formation was also confirmed by JCPDS card no. 35-0609. The SEM photographs revealed that the spherical and rod-like morphology and their grains size increased with increasing of heating temperatures. The measurement results show that the MoO3 thin film prepared at 350°C transmited about 80% of the visible spectrum. The effect of different heat treatments on surface morphology, thickness and optical properties of the films are discussed in this thesis.
Keyword: Institut Pertanian Bogor, Bogor Agricultural University, IPB, Electrophoretics, electrodeposide, electrochromics, electrochromic materials, electrochromic mechanism