2018
DOI: 10.20886/jwas.v5i2.4585
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Development and Validation of Volume Prediction Model for Balangeran (Shorea balangeran (Korth.) Burck) In Central Kalimantan

Abstract: Model penduga volume pohon harus mempunyai akurasi dan ketepatan yang tinggi sehingga pendugaan potensi tegakan menjadi tepat. Penelitian ini bertujuan mendapatkan dan melakukan validasi eksternal model penduga volume jenis Balangeran di Kalimantan Tengah. Penyusunan model penduga volume ini menggunakan 3 tahapan yakni penyusunan model dengan 52 pohon contoh, validasi model dengan 23 pohon, dan validasi eksternal dengan 10 pohon contoh. Model penduga volume pohon menggunakan model linear dan non linear dengan … Show more

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Cited by 5 publications
(9 citation statements)
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“…The growth increment was 1.5 cm per year. [30], k. At the age of 20 years, the branch-free height was 8 meters, l. Trees can be harvested made up 70% of the total plants, m. The applicable selling price per m3 was IDR 3,275,000, n. The discount rate used was 10%, based on the average interest rate of Bank Indonesia microloans in 2019.…”
Section: Financial Analysismentioning
confidence: 99%
“…The growth increment was 1.5 cm per year. [30], k. At the age of 20 years, the branch-free height was 8 meters, l. Trees can be harvested made up 70% of the total plants, m. The applicable selling price per m3 was IDR 3,275,000, n. The discount rate used was 10%, based on the average interest rate of Bank Indonesia microloans in 2019.…”
Section: Financial Analysismentioning
confidence: 99%
“…Pendekatan ini juga digunakan dalam penyusunan model penduga biomasa pohon di hutan rawa gambut Kalimantan Tengah (Manuri et al, 2014). Menurut Picard et al, (2012) 8) (Boreel & Siahaya, 2010;Dutcă et al, 2018;Hutapea & Kuswandi, 2019;Kalita et al, 2015;Masota et al, 2014;Qirom, 2018) Keterangan V: volume (m 3 ); D: diameter setinggi dada (cm); H; tinggi pohon (m); a0, a1, a2, a3:…”
Section: Analisis Data Penyusunan Model Penduga Volume Pohonunclassified
“…Hal ini ditunjukkan oleh besarnya nilai koefisien korelasi lebih dari 0,9 (Tabel 1, dan Gambar 1). Umumnya, koefisien korelasi tersebut lebih tinggi jika dibandingkan pendugaan volume pohon menggunakan metode tidak langsung/tidak ditebang yang dilakukan di hutan rawa gambut Kalimantan Tengah (Qirom, 2018;Qirom & Supriyadi, 2012. Menurut Picard et al (2012) perbedaan tersebut karena arsitektur setiap jenis pohon berbeda-beda.…”
Section: Hasil Dan Pembahasan Hubungan Diameter Tinggi Dengan Volume ...unclassified
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