Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Life Sciences
A Mixed-Effects Height-Diameter Model For Pinus Densiflora Trees In Gangwon Province, Korea, Young Jin Lee, Dean W. Coble, Jung Kee Pyo, Sung Ho Kim, Woo Kyun Lee, Jung Kee Choi
A Mixed-Effects Height-Diameter Model For Pinus Densiflora Trees In Gangwon Province, Korea, Young Jin Lee, Dean W. Coble, Jung Kee Pyo, Sung Ho Kim, Woo Kyun Lee, Jung Kee Choi
Articles
A new mixed-effects model was developed that predicts individual-tree total height for Pinus densiflora trees in Gangwon province as a function of individual-tree diameter (cm). The mixed-effects model contains two random-effects parameters. Maximum likelihood estimation was used to fit the model to 560 height-diameter observations of individual trees measured throughout Gwangwon province in 2007 as part of the National Forest Inventory Program in Korea. The new model is an improvement over fixed effects models because it can be calibrated to a local area, such as an inventory plot or individual stand. The new model also appears to be an improvement …