Regionally Compatible Individual Tree Growth Model under the Combined Influence of Environment and Competition.

ABSTRACT: To explore the effects of competition, site, and climate on the growth of Chinese fir individual tree diameter at breast height (DBH) and tree height (H), a regionally compatible individual tree growth model under the combined influence of environment and competition was constructed. Using continuous forest inventory (CFI) sample plot data from Fujian Province between 1993 and 2018, we constructed an individual tree DBH model and an H model based on re-parameterization (RP), BP neural network (BP), and random forest (RF), which compared the accuracy of the different modeling methods. The results showed that the inclusion of competition and environmental factors could improve the prediction accuracy of the model. Among the site factors, slope position (PW) had the most significant effect, f

SUBMITTER: Zhang W 

PROVIDER: S-EPMC10385731 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature