Estimating stem volume using stem taper equation for Quercus mongolica in South Korea

Autor: Yeong Mo Son, Jin Taek Kang, Dong-Geun Kim, Chi-Ung Ko
Rok vydání: 2019
Předmět:
Zdroj: Forest Science and Technology, Vol 15, Iss 2, Pp 58-62 (2019)
ISSN: 2158-0715
2158-0103
DOI: 10.1080/21580103.2019.1592785
Popis: This study was conducted to develop a stem volume table for Quercus mongolica in Korea by using Kozak’s stem taper equation. A total of 958 Quercus mongolica sample trees were collected around the country and a growth performance was investigated through compiling data of diameters by stem height and stem analysis. Fitness Index (FI), Bias, and Mean Absolute Deviation (MAD) were used to test the stem taper equation’s fitness. The fitness of the equation was estimated at 98%, bias as −0.0024, and MAD turned out as 0.6814. Furthermore, there was a statistically significant volume difference between the current volume table and the new volume table (p
Databáze: OpenAIRE