Effects of Catastrophic Insect Outbreaks on the Harvesting Solutions of Dahurian Larch Plantations
Joint Authors
Jin, Qi
Valsta, Lauri
Heliövaara, Kari
Li, Jing
Luo, Youqing
Shi, Juan
Source
International Journal of Forestry Research
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-02-18
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Optimal harvesting under pest outbreak risk was studied on a set of even-aged Dahurian larch (Larix gmelinii) stands in northeastern Inner Mongolia, China.
The effects of catastrophic pest outbreaks caused by the Siberian moth (Dendrolimus sibiricus) on the economic harvesting plan are compared through both deterministic and stochastic cases.
Stand simulation is based on an individual-tree growth system.
A scenario approach is applied when simulating the effects of catastrophic pest outbreaks.
Insect damage is assumed to be a Poisson process with an average rate of 0.1 per year.
One hundred scenarios of insect damage are created using the Poisson process to simulate the distribution of bare land value of each of the optimal regimes.
Numerical results show that the optimal rotation is shortened with an increasing probability of a catastrophe.
The average bare land values in the stochastic case are approximately 14.8% to 22.9% lower.
Numbers of thinnings are decreased for most plots when seeking a highest bare land value, compared to the deterministic optima.
If given a constant thinning rate, increasing risk-taking shortens the optimum rotation, as the model set used.
American Psychological Association (APA)
Jin, Qi& Valsta, Lauri& Heliövaara, Kari& Li, Jing& Luo, Youqing& Shi, Juan. 2015. Effects of Catastrophic Insect Outbreaks on the Harvesting Solutions of Dahurian Larch Plantations. International Journal of Forestry Research،Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1065963
Modern Language Association (MLA)
Jin, Qi…[et al.]. Effects of Catastrophic Insect Outbreaks on the Harvesting Solutions of Dahurian Larch Plantations. International Journal of Forestry Research No. 2015 (2015), pp.1-12.
https://search.emarefa.net/detail/BIM-1065963
American Medical Association (AMA)
Jin, Qi& Valsta, Lauri& Heliövaara, Kari& Li, Jing& Luo, Youqing& Shi, Juan. Effects of Catastrophic Insect Outbreaks on the Harvesting Solutions of Dahurian Larch Plantations. International Journal of Forestry Research. 2015. Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1065963
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1065963