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: |
Stem taper
Hydrology forest management 0211 other engineering and technologies 021107 urban & regional planning Forestry 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Quercus mongolica stem volume table Volume (thermodynamics) lcsh:SD1-669.5 Kozak’s stem taper equation lcsh:Forestry Volume table stem analysis 0105 earth and related environmental sciences Mathematics |
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 |
Externí odkaz: |