Judul: Potential Carbon Storage of Acacia and Puspa Mixed Stand at KHDTK Haurbentes, Bogor.
Abstrak: Hutan memiliki peranan penting dalam mengendalikan pemanasan global. Hutan menyerap CO2 dan menyimpannya sebagai biomassa tumbuhan melalui proses fotosintesis. Penelitian ini bertujuan untuk menghitung potensi biomassa dan simpanan karbon pada tegakan campuran akasia dan puspa di KHDTK Haurbentes, Kabupaten Bogor, Jawa Barat. Penelitian dilakukan dengan membuat petak contoh berukuran 20 x 20 m. Pengukuran biomassa pancang, tiang, dan pohon dilakukan dengan metode non destruktif sedangkan pengukuran biomassa serasah dan tumbuhan bawah menggunakan metode destruktif. Analisis contoh serasah dan tumbuhan bawah untuk memperoleh nilai berat kering tanur dan karbon tersimpan dilakukan di Laboratorium Pengaruh Hutan, Fakultas Kehutanan dan Lingkungan IPB. Hasil penelitian menunjukkan bahwa potensi biomassa dan simpanan karbon pada tegakan campuran akasia dan puspa di KHDTK Haurbentes sebesar 31.70 ton/ha dan 15.62 ton C/ha. Hasil pendugaan potensi simpanan karbon berbanding lurus dengan potensi biomassa., Forest has an important role in controlling global warming. Forest absorbs CO2 and stores it as plant biomass through the process of photosynthesis. The purpose of this research is to calculate biomass and carbon storage potential of acacia and puspa mixed stand at KHDTK Haurbentes, Bogor. The research was conducted by making sample plots measuring 20 x 20 meters. The measurement of the biomass of saplings, poles, and trees was carried out using a non-destructive method, while the measurement of the biomass of litter and understorey using a destructive method. The analysis of litter and understorey samples to obtain the dry weight of the kiln and stored carbon is carry out at Pengaruh Hutan Laboratory, Faculty of Forestry and Enviroment, IPB. The result of this research showed that potential for biomass and carbon storage of acacia and puspa mixed stand at KHDTK Haurbentes are 31.70 ton/ha and 15.62 ton/ha. The estimation of carbon storage was directly proportional to biomass potential.
Keyword: biomass, carbon, climate change, forest

Judul: Potential Carbon Storage of Acacia and Puspa Mixed Stand at KHDTK Haurbentes, Bogor
Abstrak: Forest has an important role in controlling global warming. Forest absorbs CO2 and stores it as plant biomass through the process of photosynthesis. The purpose of this research is to calculate biomass and carbon storage potential of acacia and puspa mixed stand at KHDTK Haurbentes, Bogor. The research was conducted by making sample plots measuring 20 x 20 meters. The measurement of the biomass of saplings, poles, and trees was carried out using a non-destructive method, while the measurement of the biomass of litter and understorey using a destructive method. The analysis of litter and understorey samples to obtain the dry weight of the kiln and stored carbon is carry out at Pengaruh Hutan Laboratory, Faculty of Forestry and Enviroment, IPB. The result of this research showed that potential for biomass and carbon storage of acacia and puspa mixed stand at KHDTK Haurbentes are 31.70 ton/ha and 15.62 ton/ha. The estimation of carbon storage was directly proportional to biomass potential.
Keyword: biomass, carbon, climate change, forest

Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
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