EVALUATION OF GROWTH AND TIMBER RESERVES OF ACACIA HYBRID BV10 PLANTED IN QUY CHAU, NGHE AN

Dương Văn Đoàn; Cao Văn Tư; Nguyễn Công Hoan

doi:10.34238/tnu-jst.8905

EVALUATION OF GROWTH AND TIMBER RESERVES OF ACACIA HYBRID BV10 PLANTED IN QUY CHAU, NGHE AN

About this article

Received: 05/10/23 Revised: 29/11/23 Published: 30/11/23

Authors

1. Duong Van Doan , TNU - University of Agriculture and Forestry
2. Cao Van Tu, Quy Chau Administration of Forestry, Nghe An
3. Nguyen Cong Hoan, TNU - University of Agriculture and Forestry

Abstract

Growth and timber reserves are criteria that are always of primary concern of forest growers. This study was conducted to evaluate the growth and timber reserves of 7-year-old Acacia hybrid BV10 planted in Quy Chau district, Nghe An province. Nine standard plots (OTC) 500 m² were established at three positions: base, flank, and top (3 OTC per plot) to measure growth characteristics. Research results showed that the average values of diameter at breast height and crown height were 12.14 cm and 11.70 m, respectively. Average timber reserves and annual timber production were 116 m³/ha and 16.60 m³/ha/year, respectively. Diameter at breast height tended to decrease with height of planting location, on the contrary, planting location had no effect on tree height of Acacia hybrid BV10. The value of tree height explained about 48% of the wood reserve value of Acacia hybrid BV10, while the diameter at breast height played a more important role in wood reserve, contributing about 68% to the wood reserve.

Keywords

BV10 hybrid acacia; Diameter; Height; Reserve; Timber

Full Text:

PDF (Tiếng Việt)

References

[1] N. H. Nguyen, Development of Acacia species in Vietnam. Agriculture Publisher, 2003.

[2] K. D. Le and T. H. Ha, “Research and development of acacia hybrids for commercial planting in Vietnam,” Vietnam Journal of Science, Technology and Engineering, vol. 60, no. 1, pp. 36 -42, 2016.

[3] Quy Chau district people’s committee, “Report of summary of forestry working in 2022; task and solutions to be implemented in 2023,” Tech. Report, 2023.

[4] VAFS (Vietnamese Academy of Forest Sciences), “Natural Acacia hybrid BV10,” 2000. [Online]. Available: http://vafs.gov.vn/vn/giong-keo-lai-tu-nhien-ky-hieu-bv10/. [Accessed Sept. 26, 2023].

[5] N. T. Tran and B. Q. Tran, “Growth of Acacia hybrid plantations (Acacia auriculiformis x Acacia mangium) on different site indexes in Dong Nai province,” Journal of Forestry Science and Technology, vol. 6, pp. 25-35, 2019.

[6] H. K. Tran and K. T. Huynh, “Growth and yield of tisue-cultured acacia hybrid on acid sulphate soils in Ca Mau peninsula,” Journal of Forestry Science and Technology, vol. 6, pp. 53-59, 2021.

[7] K. Nguyen-Tu, M. Ochiishi, and J. Matsumura, “Variation in wood properites of six natural acacia hybrid clones in northern Vietnam,” Journal of Wood Science, vol. 54, pp. 436-442, 2008.

[8] T. K. Nguyen, J. Matsumura, and K. Oda, “Effect of growing site on the fundamental wood properties of natural hybrid clones of Acacia Vietnam,” Journal of Wood Science, vol. 57, pp. 87-93, 2011.

[9] V. D. Duong, H. T. T. Vu, H. T. Ngo, and T. V. Cao, “Evaluation of some physical and mechanical properties of Acacia hybrid BV10 planted in Quy Chau, Nghe An,” The Journal of Agriculture and Development, vol. 22, no. 5, pp. 12-21, 2023.

[10] R. D. Tran, “Assessment on growth and economic effects of Acacia hybryd in Quang Tri provience,” Vietnam Journal of Forest Science, no. 2, pp. 2793-2798, 2013.

[11] V. D. Duong, S. N. Ho, H. T. T. Nguyen, H. C. Nguyen, and P. T. La, “The relationships between growth characteristics and some wood properties of Acacia mangium planted in Quang Tri, Vietnam,” TNU Journal of Science and Technology, vol. 227, no. 05, pp. 208-214, 2022.

DOI: https://doi.org/10.34238/tnu-jst.8905

Refbacks

There are currently no refbacks.



Remember me