Judul: Kelimpahan Fauna Tanah pada Ekosistem Hutan Pegunungan Bawah di Resort Cikaniki Taman Nasional Gunung Halimun Salak
Abstrak: Fauna tanah merupakan bioindikator kesuburan tanah. Keberadaan fauna tanah dipengaruhi oleh faktor lingkungan seperti klimatis, edafis dan tutupan vegetasi. Tujuan penelitian ini adalah menganalisis kelimpahan fauna tanah pada ketinggian yang berbeda serta menganalisis pengaruh lingkungan terhadap kelimpahan fauna tanah. Penelitian dilakukan secara purposive sampling di ketinggian 1.100 m dpl, 1.200 m dpl, 1.300 m dpl, dan lahan terbuka (1.230 m dpl) di Taman Nasional Gunung Halimun Salak. Hasil uji BNT menunjukkan perbedaan nyata antara kelimpahan fauna tanah pada ketinggian 1.100 m dpl dan lahan terbuka (1.230 m dpl), serta perbedaan tidak nyata pada ketinggian 1.200 m dpl dan 1.300 m dpl. Kelimpahan fauna tanah tertinggi berada pada ketinggian 1.100 m dpl yaitu 156 individu/m2 dan didominasi oleh famili Formicidae. Kelimpahan fauna tanah terendah adalah lahan terbuka (1.230 m dpl) yaitu 3 individu/m2. Korelasi Pearson kelimpahan fauna tanah terhadap unsur klimatis menunjukkan fauna tanah berkorelasi negatif terhadap kelembaban dan berkorelasi positif terhadap suhu udara. Uji korelasi Pearson kelimpahan fauna tanah terhadap unsur edafis menunjukkan korelasi positif terhadap berat basah serasah, respirasi tanah, KTK dan Corganik.
Keyword: collembola, formicidae, macrofauna, mesofauna, soil fauna

Judul: Soil Fauna Diversity in the Agroforestry Areas of Mount Halimun Salak National Park
Abstrak: Taman Nasional Gunung Halimun Salak (TNGHS) merupakan area konservasi yang melibatkan masyarakat dalam pengelolaan lahan dengan sistem agroforestri. Keberadaan fauna tanah di lahan agroforestri diperlukan sebagai indikator kesuburan tanah. Penelitian bertujuan mengidentifikasi keanekaragaman fauna tanah, menganalisis pengaruh kerapatan vegetasi serta hubungan faktor lingkungan terhadap keanekaragaman fauna tanah di lahan agroforestri TNGHS. Metode pengambilan sampel fauna tanah dengan pitfall trap. Analisis data dengan mengukur kelimpahan, indeks keanekaragaman (H’), kekayaan (DMg) dan kemerataan (E) spesies, uji t paired dan korelasi pearson. Hasil penelitian ditemukan 15 ordo dan 32 famili dengan famili Formicidae (Hymenoptera) paling banyak ditemukan. Indeks H’ dan DMg pada kerapatan tinggi lebih besar (0,72 dan 3,28) dibandingkan dengan kerapatan sedang (0,63 dan 2,95). Indeks E pada kedua kerapatan tergolong rendah dan menunjukkan adanya dominansi dari famili Formicidae. Hasil uji t paired menunjukkan tidak ada perbedaan yang signifikan antara kerapatan tinggi dan sedang. Keanekaragaman fauna tanah berkorelasi sangat rendah dengan pH tanah, respirasi, dan intensitas cahaya. Sementara dengan ketebalan serasah korelasinya rendah, dan dengan suhu tanah korelasinya sedang., Gunung Halimun Salak National Park (TNGHS) is a conservation area that involves communities in land management with agroforestry systems. The presence of soil fauna in agroforestry land is needed as an indicator of soil fertility. The study aims to identify the diversity of soil fauna, analyze the effect of vegetation density and the relationship of environmental factors on soil fauna diversity in agroforestry land TNGHS. The method of sampling soil fauna with pitfall traps. Data analysis by measuring the abundance, diversity index (H'), richness (DMg) and evenness (E) of species, paired t test and Pearson correlation. The results of study found 15 orders and 32 families with Formicidae family (Hymenoptera) found the most. The H' and DMg indices at high density were greater (0.72 and 3.28) than those at medium density (0.63 and 2.95). The E index in both densities was low and indicated the dominance of Formicidae family. The paired t test results showed no significant difference between high and medium densities. Soil fauna diversity was very lowly correlated with soil pH, respiration, and light intensity. While with litter thickness the correlation is low, and with soil temperature the correlation is moderate.
Keyword: Agroforestri, Fauna tanah, Keanekaragaman, Taman Nasional Gunung Halimun Salak

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