Equations describing stem profiles for several precious tropical tree species

PANG Lifeng,JIA Hongyan,LU Yuanchang,FU Liyong

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2016, Vol. 40 ›› Issue (05) : 93-98.

PDF(1970959 KB)
南京林业大学学报（自然科学版）
PDF(1970959 KB)
JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2016, Vol. 40 ›› Issue (05) : 93-98. DOI: 10.3969/j.issn.1000-2006.2016.05.015

Equations describing stem profiles for several precious tropical tree species

  • PANG Lifeng1,JIA Hongyan2,LU Yuanchang1,FU Liyong1
Author information +
History +

Abstract

An accurate description of stem profile curve of the precious tree species in tropical region can help to estimate the tree number and volume of certain species, and thus provides technical support for reasonable bucking. With a total of 120 trees(40 for each species), three species induding Erythrophleum fordii, Castanopsis hystrix and Tectona grandis, were investigated in this research. The tape equations for the three species were developed using the simple taper equation, segmented taper equations and the variable form taper equations respectively. The optimal taper equations for the three tree species were determined through the comparison and analysis of statistical quantities of the index of correlation, the residual sum of squares, the mean prediction error, the variance of prediction errors and the root mean square error. With the optimal taper equation, a preliminary quantitative analysis was carried out on the stem profile variations of the three precious tree species. The results showed that the prediction precision of the taper equations for each species was high. Especially, the segmented taper equations with optimization algorithms were the best. With the optimal equation, the variation tendency of the stem profile of the trees were found as following: the variation of stem profile of T. grandisin in the relative height range of 0 to 0.8 was the largest, followed by E. fordii, and the variation of C. hystrix was the smallest. But in the relative height range of 0.8 to 1, the variation of stem profile of C. hystrix was the largest, while the variation of E. fordii and T. grandis were comparable. Therefore, the segmented taper equations with optimization algorithms is recommended to describe the stem profile of these three tree species in tropical regions, which can be used to estimate the stumpage and timber quantity and to guide reasonable bucking for precious tree species.

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations
PANG Lifeng,JIA Hongyan,LU Yuanchang,FU Liyong. Equations describing stem profiles for several precious tropical tree species[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2016, 40(05): 93-98 https://doi.org/10.3969/j.issn.1000-2006.2016.05.015

References

[1] 白景萍.广东、福建发展珍贵树种的考察报告[J].山西林业科技,2009,38(2): 51-52. Bai J P.Investigation report of rare species in Guangdong, Fujian[J].Shanxi Forestry Science and Technology, 2009,38(2): 51-52.
[2] 陈秀庭.广西珍贵树种人工林发展前景探讨[J].林业科技,2012,37(1):53-55. Chen X T.Study on development prospects of rare species plantation in Guangxi[J].Forestry Science & Technology,2012, 37(1):53-55.
[3] Pickens J,Lee A,Lyon G.Optimal bucking of northern hardwoods[J].Northern Journal of Applied Forestry,1992, 9(4):149-152.
[4] Bowers S. Increased value through optimal bucking[J]. Western Journal of Applied Forestry, 1998, 13(3):85-89(5).
[5] 曾伟生,廖志云.削度方程的研究[J].林业科学,1997,33(2):127-132. Zeng W S, Liao Z Y. Research on the taper equation[J].Scientia Silvae Sinicae,1997,33(2):127-132.
[6] 曾伟生.利用削度方程编制材种出材率表的几个主要技术问题研究[J].中南林业调查规划,1997,16(1):5-10. Zeng W S. Research on several key technical isuess of preparation of taper equation of timber ratetable[J].Central South Forest Inventory and Planning,1997,16(1): 5-10.
[7] Kozak A,Munro D O,Smith J H G.Taper functions and their application in forest inventory[J].The Forestry Chronicle, 1969,45(4):278-283.
[8] Ormerod D W. A simple bole model[J].The Forest Chronicle, 1973,49: 136-138.
[9] 孟宪宇.削度方程和出材表的研究[J].南京林产工业学院学报,1982,5(1):122-133.Doi: 10.3969/j.jssn.1000-2006.1982.01.008. Meng X Y. Research taper equation and timber table[J]. Journal of Nanjing Technological College of Forest Products,1982,5(1): 122-133.
[10] Amidon E L.A general taper functional form to predict bole volume for five mixed-conifer species in Califomia[J]. Forest Science,1984,30(1): 166-171.
[11] Max T A,Burkhart H E. Segmented polynomial regression applied to taper equations[J]. Forest Science, 1976,22:283-289.
[12] Cao Q V, Burkhart H E, Max T A.Evaluations of two methods for cubic volume prediction of loblolly pine to any merchantable limit[J]. Forest Science,1980,26(1): 71-80.
[13] John R B,Li C J,Ramazan O.Compatible stem volume and taper equations for Brutian pine cedar of Lebanon,and Cilicica fir in Turkey[J]. Forest Ecology and Management,2008,256:147-151.Doi:10.1016/j.fores0.2008.04.018.
[14] 姜立春,刘瑞龙.基于非线性混合模型的落叶松树干削度模型[J].林业科学,2011,47(4):101-106. Jiang L C, Liu R L.A stem taper model with nonlinear mixed effects for Dahurian larch[J].Scientia Silvae Sinicae,2011,47(4):101-106.
[15] Jiang L,Liu R.Segmented taper equations with crown ratio and stand density for Dahurian larch(Larix gmelinii)in northeastern China[J]. Journal of Forestry Research, 2011,22(3): 347-352.Doi: 10.1007/s11676-011-0178-4.
[16] Newnham R M. Variable-form taper equation for four Alberta tree species[J].Canadian Journal of Forest Research, 1992,22(2):210-223.
[17] 严若海,吴富祯.关于商品材积变型估测系统的研究[J].南京林业大学学报,1992,16(3):31-37. Doi:10.3969/j.jssn.1000-2006.1992.03.007. Yan R H,Wu F Z. Research on commodity volume estimation system variant[J]. Journal of Nanjing Forestry University,1992,16(3):31-37.
[18] Muhairwe C K.Tree form and taper variation over time for interior lodgepolepine[J]. Canadian Journal of Forest Research, 1994,24(9): 1904-1913.
[19] Kozak A. A variable-exponent taper equation[J]. Canadian Journal of Forest Research,1988,18(11):1363-1368.
[20] Valentine H T, Gregoire T G. A switching model of bole taper[J].Canadian Journal of Forest Research,2001,31(8): 1400-1409.
[21] 王明亮.理论造材:削度方程和出材率表的编制[J].林业科学研究, 1998,11(3):271-276. Doi:10.13275/j.cnki.lykxyj.1998.03.008. Wang M L. Theoretical bucking: taper equations and merchantable volume tables[J].Forest Research,1998,11(3):271-276.
[22] 胡春祥,杨胜利, 贾炜玮.落叶松人工林树干形状模型和可变参数[J].应用生态学报,2011,22(7):1695-1701. Doi:10.13287/j.1001-9332.2011.0241. Hu C X,Yang S L,Jia W W. Stem profile model and variable-exponent of Larix gmelinii plantation[J].Chinese Journal of Applied Ecology,2011,22(7):1695-1701.
[23] Lee W K,Seo J H,SonY M,et al.Modeling stem profiles for Pinus densiflora in Korea[J].Forest Ecology and Management, 2003,172(1):69-77.
[24] 唐守正, 郎奎建, 李海奎.统计和生物数学模型计算(ForStat教程)[M].北京:科学出版社,2009:56-79.
[25] 李婷婷,郑小贤,宁杨翠,等.出材率表简易编制方法研究—以浙江省开化林场人工林为例[J].西北林学院学报,2012,27(1):1-5. Doi:10.3969/j.issn.1001-7461.2012.01.32. Li T T, Zheng X X,Ning Y C, et al. A simple method for construction of timber-produced rate table: a case of Kaihua Forest Farm[J].Journal of Northwest Forestry University,2012,27(1):1-5.
[26] 庞丽峰.基于目标树经营的林分收获分析及信息管理系统研究[D].北京:中国林业科学研究院, 2015. Pang L F.Stand harvest analysis and information management system for target tree[D]. Beijing: Chinese Academy of Forestry, 2015.
PDF(1970959 KB)

Accesses

Citation

Detail
Sections
Recommended
The full text is translated into English by AI, aiming to facilitate reading and comprehension. The core content is subject to the explanation in Chinese.

Author

Reader

Reviewer

www.nldxb.njfu.edu.cn

Edited ＆ Published by Editorial Department of Nanjing Forestry University(Natural Sciences Edition)
Address： No.159 Longpan Road,Nanjing 210037 Jiangsu,P.R.China
E-mail ：xuebao@njfu.edu.cn , xuebao@njfu.com.cn
Telephone +86-25-85428247,85427076
Distributed by China International Book Trading Corporation P.O. Box 399, Beijing ,P.R. China

/

〈 〉