Judul: Rencana pengelolaan lanskap agroforestri di daerah  aliran sungai karang mumus, Kalimantan Timur
Abstrak: Kalimantan Timur sebagai provinsi terluas di Indonesia memiliki permasalahan besar yang harus dihadapi, antara lain, degradasi lahan, banjir, kepunahan flora dan fauna, serta kontribusi terhadap perubahan iklim dan pemanasan global. Daerah aliran sungai Karang Mumus dengan luas 32.196,3 ha merupakan DAS di Kalimantan Timur dengan tingkat kerusakan prioritas pertama, pada saat ini terdapat areal lahan kritis seluas 9.106 ha. Tujuan penelitian ini adalah 1) mengevaluasi dan menganalisis karakter lanskap DAS Karang Mumus, 2) menganalisis faktor-faktor pendorong pengelolaan lanskap agroforestri, dan 3) menyusun rekomendasi rencana pengelolaan lanskap agroforestri.
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Judul: Perencanaan Pengelolaan Lahan Usahatani  Menuju Pertanian Berkelanjutan di Daerah  Tangkapan Air Danau Barong Kalimantan  Timur
Abstrak: Untuk menjaga keberlanjutan usahatani maka diperlukan perencanaan yang baik, sehingga kegiatan pertanian yang dilakukan tidak berdampak negatif terhadap lingkungan dan tetap menjaga agar pendapatan petani tetap tinggi. Erosi, sedimentasi, banjir dan rendahnya pendapatan petani merupakan fenomena yang disebabkan oleh pengelolaan lahan yang kurang tepat. Perencanaan pengelolaan lahan dalam lingkup DAS merupakan suatu upaya untuk menekan dampak negatif tersebut.
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Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell