Investigating the Effectiveness of DSH  and DBH in Allometric Relationships of Coppice Shoot Iranian oak (Quercus brantii Lindl)

Amiri, Peyman; Soosani, Javad; Naghavi, Hamed; Seyedna, Vahid; Nourmohammadi, Kazem

[Home ] [Archive]

[ فارسی ]

Main Menu

Home

Journal Information

Articles archive

For Authors

For Reviewers

Registration

Contact us

Site Facilities

Search in website

Receive site information

Volume 12, Issue 24 (9-2024)

PEC 2024, 12(24): 47-60

Back to browse issues page

Investigating the Effectiveness of DSH and DBH in Allometric Relationships of Coppice Shoot Iranian oak (Quercus brantii Lindl)

Peyman Amiri

, Javad Soosani ^*

, Hamed Naghavi

, Vahid Seyedna

, Kazem Nourmohammadi

Department of Forestry, Faculty of Natural Resources, soosani.j@lu.ac.ir , soosani.j@lu.ac.ir

Abstract: (341 Views)

This research was carried out with the aim of achieving a suitable height for diameter measurement in coppice Iranian oak trees in the middle Zagros vegetation area. For this purpose, three categories in terms of destruction level of stands including: destroyed, medium and less destroyed were selected in Qala Gol area of Khorram Abad and then in each category a square sample plot of one-hectare was laid out and D.B.H, D.S.H, large and small crown diameter, crown height and tree height were measured. The results of Pearson's correlation coefficient showed that there was a significant correlation between two target diameters with All variables. Regression models showed that the highest R squares is related to the relationship between the DBH and the area of the crown in the less degraded sample (0.74) and the lowest level is related to the relationship between the DSH with tree height in the degraded sample (0.45), Also, the lowest amount of RMSE% (11.5%) and MAE% (10.6%) related to the relationship between DBH and crown area in the less degraded sample, and the highest related to the relationship between DSH and tree height In the degraded sample, it was 15.6% and 14.5%. In total, the results of this research showed that the DBH due to the relatively strong relationship between the investigated variables of the trees is a more suitable height for measuring the diameter in coppice Iranian oak forest.

Article number: 4

Keywords: Zagrose, Coppice, Diameter, Correlation

Full-Text [PDF 1556 kb] (99 Downloads)

Type of Study: Research | Subject: Special
Received: 2023/07/5 | Accepted: 2024/02/24 | Published: 2024/10/7

References

1. Buba, T. 2012. Prediction equations for estimating tree height, crown diameter, crown height and crown. African J.of Agricultural Research, 7(49): 6541 – 6543.

2. Cabuy, R. L. 2015. Age, diameter, height, crown, trunk, and biomass contained relationships of semi-arid senegalese tree species.technical report.

3. FAO., 2020. The State of the World’s Forests. Katz, D. S. W., Morris, J. R., Batterman, S. A. 2020. Pollen production for 13 urban North American tree species: allometric equations for tree trunk diameter and crown area. Aerobiologia, 36(3): 401 – 415.

4. Paula, J., Peper, E., McPherson, G., Mori, S.M. 2001. Equations for predicting diameter, height, crown width, and leaf area of San Joaquin valley street trees. J. Arboric, 27(6): 306-317.

5. Tanka, P.A. 2006. Prediction of distribution for total height and crown ratio using normal versus other distribution. A Thesis Submitted to the Graduate Faculty of Auburn University in Partial Fulfillment of the Requirements for the Degree of Masters of Science.

6. Turan, S. 2009. Diameter at breast height-crown diameter prediction models for Picea orientalis. Afr. J. Agric Res, 4(3): 215-219.

7. ZHeng, L.F., ZHou .X. N. 2010. Diameter distribution of trees in natural stands managed on polycyclic cutting system. Forestry studies in China, 12(1): 21–25.

Send email to the article author

Add your comments about this article

Mendeley

Zotero

RefWorks

Amiri P, Soosani J, Naghavi H, Seyedna V, Nourmohammadi K. Investigating the Effectiveness of DSH and DBH in Allometric Relationships of Coppice Shoot Iranian oak (Quercus brantii Lindl). PEC 2024; 12 (24) : 4
URL: http://pec.gonbad.ac.ir/article-1-932-en.html

Rights and permissions
	This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Volume 12, Issue 24 (9-2024)

Back to browse issues page

Persian site map - English site map - Created in 0.08 seconds with 36 queries by YEKTAWEB 4660