Optimal management of larch (Larix olgensis A. Henry) plantations in Northeast China when timber production and carbon stock are considered
• Key message
The optimal management of larch (Larix olgensis) plantations in Northeast China consisted of 2 or 3 thinnings and a rotation length of 55–61 years when economic profitability, wood production, and carbon sequestration were simultaneously maximized. Wood production ranged from 5.4 to 11.7 m3 ha−1 a−1, depending on site quality.
L. olgensis is an important tree species in the northeast forest region of China, playing a significant role in the establishment of fast-growing and high-yielding plantation forests in China. However, the management of these plantations has not been optimized in previous studies.
The objective of the study was to find the optimal combinations of thinning times, thinning types, and rotation length for L. olgensis stands when both timber production and carbon stock are considered.
First, a growth and yield model was developed to simulate the dynamics of larch plantations. Then, the models were linked with the Hooke and Jeeves optimization algorithm to optimize forest management for two commonly used planting densities and three site qualities.
Two thinnings were found to be suitable for larch plantations when the stand density at 10 years was 2125 trees/ha (corresponding to a planting density of 2500 trees/ha) whereas three thinnings were recommended when the density at 10 years was 2800 trees/ha (planting density of 3300 trees/ha). When the stand density was 2800 trees/ha, the optimal rotation length was 61, 58, and 55 years for site indices (SI) 12, 16, and 20 m (dominant height at 30 years), respectively. The mean annual wood production was 5.4 m3 ha−1 for SI 12, 8.2 m3 ha−1 for SI 16, and 11.7 m3 ha−1 for SI 20. The results were nearly the same for the lower initial stand density. The better the site quality of the stand, the earlier the thinnings were conducted.
In multifunctional forestry, optimal rotation lengths of larch plantations were 10–20 years longer than advised in the current silvicultural recommendations for Northeast China.
KeywordsGrowth and yield model Net present value Multifunctional forestry Multi-objective optimization
The authors warmly thank Dr. Lihu Dong for his help in developing the individual tree growth model. The authors also thank the teachers and students of the Department of Forest Management, Northeast Forestry University (NEFU), China, who provided and collected the data for this study.
The research was financially supported by the National Key R&D Program of China (No. 2017YFD0600402), National Natural Science Foundation of China (31600511), and the Fundamental Research Funds for the Central Universities of the People’s Republic of China (2572017CA04).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- Avery TE, Burkhart HE (1994) Forest measurements, 4th edn. McGraw-Hill, Inc, New YorkGoogle Scholar
- Bazaraa MS, Sherali HD, Shetty CM (1993) Nonlinear programming: theory and algorithms, 2nd edn. Wiley, Hoboken 639 p. ISBN 0-471-55793-5Google Scholar
- Brodie JD, Adams DM, Kao C (1978) Analysis of economic impacts on thinning and rotation for Douglas-fir, using dynamic programming. For Sci 24:513–522Google Scholar
- Chen DS (2010) The optimal management mode of large and medium diameter timber in larch plantation. Ph.D thesis, Northeast Forestry University. in ChineseGoogle Scholar
- Clutter JL, Forston JC, Piennar LV, Brister GH, Bailey RL (1983) Timber management—a quantitative approach. Wiley, New York, p 333Google Scholar
- de-Miguel S, Pukkala T, Yesil A (2014) Integrating pine honeydew honey into forest management optimization. Eur J For Res 133(423):432Google Scholar
- Haight RG, Monserud RA (1990) Optimizing any-aged management of mixed-species stands. II. Effects of decision criteria. For Sci 36:125–144Google Scholar
- Haight RG, Brodie JD, Dahms WG (1985) A dynamic programming algorithm for optimization of lodgepole pine management. For Sci 31:321–330Google Scholar
- Heiðarsson L, Pukkala T (2011) Taper functions for lodgepole pine (Pinus contorta) and Siberian larch (Larix sibirica) in Iceland. Icel Agric Sci 24:3–11Google Scholar
- Hyytiäinen K (2003) Integrating economics and ecology in stand-level timber production. Finnish Forest Research Institute, Research Papers 908: 42p.+ ppGoogle Scholar
- Hyytiäinen K, Tahvonen O, Valsta L (2005) Optimum juvenile density, harvesting and stand structure in even-aged Scots pine stands. For Sci 51:120–133Google Scholar
- Ju WZ (2010) Age effects on stand biomass and carbon storage of Larix olgensis plantation: a case study in DongzheLengHe forest station of Yichun City. Master thesis, Beijing Forestry University. in ChineseGoogle Scholar
- Li M, Li CS, Li CC, Zhang YC (1994) Study on the rotation length of larch plantation. Sci For logging 4:1–6 (in Chinese)Google Scholar
- Li M, Li Y, Man DB, Deng BZ, Pan JZ, Yao JQ, Zhu YJ, Zou DD (1997) A computer system of the stand silviculture models of building wood for Larix olgensis plantation. J Northeast Forestry Univ 25:26–29 (in Chinese)Google Scholar
- Liu W, Li FR (2010) Distance-independent individual-tree growth models of Larix olgensis plantation. J Northeast Forestry Univ 38:24–27 (in Chinese)Google Scholar
- Mitscherlich EA (1919) Vorschriften zur Anstellung von Feldversuchen in der landwirtschaftlichen Praxis. P. Parey, Berlin 32 ppGoogle Scholar
- Näslund M (1937) Skogsförsöksanstaltens gallringsförsök i tallskog (Forest research intitute’s thinning experiments in Scots pine forests). Meddelanden frstatens skogsförsöksanstalt Häfte 29 (in Swedish)Google Scholar
- Olschewski R, Benítez PC (2010) Optimizing joint production of timber and carbon sequestration of afforestation projects. J For Econ 16:1–10Google Scholar
- Palahí M, Pukkala T, Bonet JA, Calinas C, Fischer CR, Martinez de Aragon JR (2009) Effect of the inclusion of mushroom values on the optimal management of even-aged pine stands of Catalonia. For Sci 55:503–511Google Scholar
- Pasalodos-Tato M (2010) Optimising forest stand management in Galicia, north-western Spain. Dissertationes Forestales 102:1–52Google Scholar
- Roise JP (1984) A nonlinear programming approach to stand optimization. For Sci 32(32):735–748Google Scholar
- Roise JP (1986) An approach for optimizing residual diameter class distribution when thinning even-aged stands. For Sci 32:871–881Google Scholar
- State Forestry Administration (2014) The eighth forest resource survey report. http://126.96.36.199:8085/8/index.html
- Valsta L (1992) An optimization model for Norway spruce management based on individual-tree growth models. Acta For Fenn 232:20 pGoogle Scholar
- Vanclay JK (1994) Modelling forest growth and yield: applications to mixed tropical forests. CABI, Walingford 312 pp. ISBN 0-85198-913-6Google Scholar
- Vettenranta J, Miina J (1999) Optimizing thinnings and rotation of Scots pine and Norway spruce mixtures. Silva Fenn 33:73–84Google Scholar
- Yasaka M, Oono Y, Nakagawa M, Fukuchi M, Akashi N, Seiwa K (2008) Prediction of the diameter growth of individual trees in the larch plantation. The Bor For Soci 56:55–57Google Scholar
- Yu B (2008) Artificial cultivation techniques of Larix olgensis. Heilongjiang Sci Tec Info 35:193 (in Chinese)Google Scholar