Matrix Growth Model and Harvest Scenario Simulation for Multiple Uses of larchsprucefir Forests

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Matrix Growth Model and Harvest Scenario
Simulation for Multiple Uses of larch-spruce-fir
Forests

• Wei Xiang1 Xiangdong Lei1 Lingxia Hong 1 Jianjun
  Sun 2 Peizhen Wang 2

• Institute of Forest Resource Information
  Techniques (IFRIT), Chinese Academy of Forestry
  (CAF)
• Anhui University of Technology

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Outline

• Objective
• Data and methods
• Results and discussions

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Background

• Ecological-oriented
• Biodiversity
• Carbon sequestration

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Objectives

• Develop matrix growth model
• LSF-MGM (Larch-spruce-fir matrix growth model)
• Simulate harvest scenario for multiple uses of
  larch-spruce-fir Forests
• Timber production
• Tree species and size diversity
• Carbon storage
• Optimization of harvest scenarios (ongoing)

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Model structure

• Transition probability model
• Ingrowth
• Upgrowth
• Stay
• Mortality

Pf(density, site, size, diversity)
(Lewis,1942 Leslie,1945 Usher, 1966
Buongiorno and Michie,1980)
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Management objectives

• Timber production (harvested volume m3)
• Tree species and size diversity (Hsp, Hsz)
• Above-ground carbon storage (C, Ton)

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Harvest scenarios
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Data and methods
Parameter estimation (OLE and SUR)
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Model validation
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Initial diameter class distribution
Larch Pine-Spruce-Fir Deciduous I Deciduous II
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Timber production
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Diversity
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Above-ground carbon storage
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Comprehensive assessment of harvest scenarios
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Simulation software
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Demonstration
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Future work

• Multi-objective optimization model for forest
  management decision-making
• Carbon storage in forest products

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Merci!

• Question?