# Thapa et al. 2013: Predicting Total Height from Diameter Using Nonlinear Models in Pinus roxburghii

Thapa, T. B., Upadhyaya, C. P., Timilsina, Y. P., Bhandari, S. K., & Puri, L. (2013). Predicting total height from diameter using nonlinear models in Pinus roxburghii. Nepal Journal of Science and Technology, 14(1), 147–152.

- DOI: https://doi.org/10.3126/njst.v14i1.8935
- Access: open access
- Copy we read: https://www.nepjol.info/index.php/NJST/article/download/8935/7338
- Status: no retraction or correction notice recorded (Crossref is asked weekly); last checked 2026-11-02
- Page: https://treeallometry.org/sources/thapa-2013/

## Equations from this source (1)

### Chir pine height from D (M1, power)

Height for Pinus roxburghii, Nepal. Inputs: DBH. DBH 5.57–61.94 cm. 180 trees.

As printed (Results and Discussion, p. 150):

> M1 i.e. H = e(-0.276) D0.925 is considered best fitted model

Page: https://treeallometry.org/equations/thapa-2013-h-power/