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Economically optimal cutting cycle in a beech forest, Iranian Caspian Forests | ||
| Caspian Journal of Environmental Sciences | ||
| مقاله 2، دوره 9، شماره 2، تیر 2011، صفحه 181-188 اصل مقاله (271.25 K) | ||
| نویسندگان | ||
| S. Mohammadi Limaei* 1؛ R. Naghdi2؛ S. Namdari3؛ A. E. Bonyad3 | ||
| 1Dept. of Forestry, Faculty of Natural Resources, University of Guilan, Sowmehsara 1144, Iran | ||
| 2Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmehsara, P.O. Box: 1144 ,Iran. | ||
| 3Dept. of Forestry, Faculty of Natural Resources, University of Guilan, Sowmehsara 1144, Iran. | ||
| چکیده | ||
| The aim of this study was to determine the optimal cutting cycle in an uneven-aged beech forest in the North of Iran. First of all, a logistic growth model was determined for an uneven aged forest. Then, the stumpage price was predicted via an autoregressive model. The average stumpage price of beech was derived from actual timber, round wood, fire and pulpwood prices at road side minus the variable harvesting costs. Price and growth models were used in order to determine the optimal cutting cycle under different rates of interest and setup costs. The Faustmann?s model was used for optimal cutting cycle. The results indicated that the optimal cutting cycle will decrease if the rate of interest increased. The results also indicated that if the setup costs increase, the optimal cutting cycle will also increase. REFERENCES Bonyad, A.E. (2005) Measurement and statically analysis of forest growth at three altitude classes in Shafarod forests. Report of Research Plan, University of Guilan, Iran, 73 p. Buongiorno, J. (2001) Generalization of Faustmann's formula for stochastic forest growth and prices with Markov decision process model. For Sci. 47, 466-474. Buongiorno, J., Lu, H. (2003) Economic stocking and cutting-cycle in a regulated selection forest Department of Forestry, University of Wisconsin, Madison, 1630 Linden Drive, Madison, WI 53706, U.S.A. Buongiorno, J., Peyron, J.L., Houllier, F. & Bruciamacchie, M. (1995) Growth and management of mixed-species, uneven-aged forests in the French Jura: implications for economic returns and tree diversity. For Sci. 41, 397-429 Central Bank of the Islamic Republic Iran. (2011) Consumer Price Index, (http://www.cbi.ir/section/1555.aspx (10-Feb-2011)) Chang, J.S. (1981), Determination of the optimal growing stock and cutting cycle for an uneven-aged stand. For Sci. 27, 739-744. Chang, S.J., and Gadow, K, V. (2010) Application of the generalized Faustmann model to uneven-aged forest management, J. Forest Econ., 16, 313-325. Clark, C.W. (1976) Mathematical bioeconomics, the optimal management of renewable resources. New York. 386pp. Faustmann, M. (1849) On the Determination of the Value Which Forest Land and Immature Stands Possess for Forestry, English Edition edited by M. Gane, Oxford. UK. Gong, P. 1990) Timber price and price predictions (expectations). Swedish University of Agricultural Sciences, Department of Forest Economics, Umeå, Sweden, Report 126, 44 p. Haight, R.G. (1990) Feedback thinning policies for uneven-aged stand management with stochastic prices. For Sci. 36, 1015-1031. Hann, D.W., & Bare, B.B. (1979) Unevenage forest management: state of the art (or Science?). USDA, Forest Service, General Technical Report 50, 18p. Lohmander, P. (1987) Pulse extraction under risk and a numerical forestry application. International institute for applied systems Analysis, IIASA, WP84-49, 39 p. Lohmander, P., Mohammadi Limaei. S. (2008) Optimal Continuous Cover Forest Management in an UnevenAged Forest in the North of Iran, J. Appl. Sci. 8, 1995-2007. Mohammadi Limaei, S. (2011) Economics optimization of forest management, LAP LAMBERT Academic Publication, Germany, 140 p. Mohammadi Limaei, S. (2006) Economically optimal values and decisions in Iranian forest management. Doctoral diss. Dept. of Forest Economics, SLU. Acta Universitatis agriculturae Sueciae vol. 2006:91. Orois, S.S., Chang, S.J., and Gadow, K.V. (2004) Optimal residual growing stock and cutting cycle in mixed unevenaged maritime pine stands in Northwestern Spain, Forest Policy Econ. 6, 145-152. Peng, C. (2000) Growth and yield models for uneven-aged stands: past, present and future. Forest Ecol. and Manag. 132, 259-279. Rollin, F., Buongiorno, J., Zhou, M. and Peyron, J.L. (2005) Management of mixed-species, uneven-aged forests in the French Jura: from stochastic growth and price models to decision tables. For Sci. 55, 64-74. Virgilietti, P. & Buongiorno, J. (1997) Modeling forest growth with management data: A matrix approach for the Italian Alps. Silva Fennica. 31, 27-42. | ||
| کلیدواژهها | ||
| Optimal cutting cycle؛ Caspian forests؛ Faustmann?s model؛ Stumpage price | ||
| مراجع | ||
|
Bonyad, A.E. (2005) Measurement and statically analysis of forest growth at three altitude classes in Shafarod forests. Report of Research Plan, University of Guilan, Iran, 73pp.
Buongiorno, J. (2001) Generalization of Faustmann's formula for stochastic forest growth and prices with Markov decision process model. For Sci. 47, 466-474.
Buongiorno.J., Lu,H. (2003) Economic stocking and cutting-cycle in a regulated selection forestDepartment of Forestry, University of Wisconsin, Madison, 1630 Linden Drive, Madison, WI 53706, U.S.A.
Buongiorno, J., Peyron, J.L., Houllier, F. & Bruciamacchie, M. (1995) Growth and management of mixed-species, uneven-aged forests in the French Jura: implications for economic returns and tree diversity. For Sci. 41, 397-429
Central Bank of the Islamic Republic Iran. (2011) Consumer Price Index, (http://www.cbi.ir/section/1555.aspx (10-Feb-2011))
Chang, J.S. (1981), Determination of the optimal growing stock and cutting cycle for an uneven-aged stand. For Sci.27, 739-744.
Chang, S.J., and Gadow , K, V. (2010) Application of the generalized Faustmann model to uneven-aged forest management, J. Forest Econ., 16, 313-325. 188 Optimal cutting cycle in Caspian Forests Clark,
C.W. (1976) Mathematical bioecon-omics, the optimal management of renewable resources. New York. 386pp.
Faustmann, M. (1849) On the Determination of the Value Which Forest Land and Immature Stands Possess for Forestry, English Edition edited by M.Gane, Oxford. UK.
Gong, P. 1990) Timber price and price predictions (expectations). Swedish University of Agricultural Sciences, Department of Forest Economics, Umeå, Sweden, Report 126, 44pp
Haight, R.G. (1990) Feedback thinning policies for uneven-aged stand management with stochastic prices. For Sci.36, 1015-1031.
Hann, D.W., & Bare, B.B. (1979) Uneven-age forest management: state of the art (or Science?). USDA, Forest Service, General Technical Report 50, 18pp.
Lohmander, P. (1987) Pulse extraction under risk and a numerical forestry application. International institute for applied systems Analysis, IIASA, WP-84-49, 39pp.
Lohmander, P., Mohammadi Limaei. S. (2008) Optimal Continuous Cover Forest Management in an Uneven-Aged Forest in the North of Iran, J. Appl. Sci.8, 1995-2007.
Mohammadi Limaei, S. (2011) Economics optimization of forest management, LAP LAMBERT Academic Publica-tion, Germany, 140pp.
Mohammadi Limaei, S. (2006)Economically optimal values and decisions in Iranian forest manage-ment. Doctoral diss. Dept. of Forest Economics, SLU. Acta Universitatis agriculturae Sueciae vol. 2006:91.
Orois, S.S., Chang, S.J., and Gadow , K.V. (2004) Optimal residual growing stock and cutting cycle in mixed uneven-aged maritime pine stands in Northwestern Spain, Forest Policy Econ.6, 145-152.
Peng, C. (2000) Growth and yield models for uneven-aged stands: past, present and future. Forest Ecol. and Manag.. 132, 259-279.
Rollin, F., Buongiorno, J., Zhou, M. and Peyron, J.L. (2005) Management of mixed-species, uneven-aged forests in the French Jura: from stochastic growth and price models to decision tables. For Sci.55, 64-74.
Virgilietti, P. &Buongiorno, J. (1997) Modeling forest growth with management data: A matrix approach for the Italian Alps. Silva Fennica. 31, 27-42. | ||
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