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首页> 外文学位 >Land management with ecological and economic objectives: Developing a production possibility set of wildlife species persistence and timber harvest value using simulated annealing.
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Land management with ecological and economic objectives: Developing a production possibility set of wildlife species persistence and timber harvest value using simulated annealing.

机译：具有生态和经济目标的土地管理：使用模拟退火方法开发一套野生生物物种持久性和木材采伐价值的生产可能性集。

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摘要

An integrated model combining a wildlife population simulation model, and timber harvest and growth models was developed to explore the tradeoffs between the likelihood of persistence of a wildlife species and timber harvest values on a landscape in the Central Oregon Cascades. Simulated annealing, a heuristic optimization technique, was used to identify harvest schedules that maximized the net present value of timber harvest relative to a given wildlife habitat constraint over a 100 year planning period. This habitat constraint was identified by a logit regression model that estimated the likelihood of species persistence from a series of weighted habitat scores developed from extensive simulation work within the wildlife population model. By solving this problem for a range of different species persistence constraints a production possibility frontier is developed that shows the relative tradeoffs between timber harvest value and likelihood of species persistence on this landscape. Although the results are specific to the wildlife species and the landscapes analyzed, the approach is general and may provide a structure for future models that will allow land managers and forest planners to become more informed about the tradeoffs among competing resources.
机译：开发了一个综合模型，该模型结合了野生动物种群模拟模型以及木材采伐和生长模型，以探索野生生物物种持续存在的可能性与俄勒冈州中部小瀑布景观上木材采伐价值之间的权衡。模拟退火是一种启发式优化技术，用于确定采伐计划，该计划在100年的规划期内相对于给定的野生动植物栖息地限制，使木材采伐的净现值最大化。通过Logit回归模型确定了栖息地的限制条件，该模型通过一系列加权的栖息地分数估算了物种持续存在的可能性，而加权的栖息地分数是根据野生动植物种群模型中广泛的模拟工作得出的。通过针对一系列不同物种持久性约束条件解决此问题，开发了生产可能性边界，该边界显示了木材采伐价值与该景观上物种持久性可能性之间的相对权衡。尽管结果特定于野生动植物物种和所分析的景观，但该方法是通用的，可以为将来的模型提供结构，这将使土地经理和森林规划者可以更了解竞争资源之间的权衡。

著录项

  • 作者

    Calkin, David Ellery.;

  • 作者单位

    Oregon State University.;

  • 授予单位 Oregon State University.;
  • 学科 Agriculture Forestry and Wildlife.; Applied Mechanics.
  • 学位 Ph.D.
  • 年度 2001
  • 页码 84 p.
  • 总页数 84
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 森林生物学;应用力学;
  • 关键词

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