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Exploring the social-ecological resilience of forest ecosystem services.

机译：探索森林生态系统服务的社会生态适应力。

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摘要

Natural disturbance is predicted to increase in Canadian forests as the climate continues to change. This will trigger an increased variability, and therefore uncertainty, in the supply of ecosystem services from forests. I used social-ecological systems theory to develop a forest management approach that recognizes and incorporates spatial and temporal dynamics. Social-ecological approaches integrate the role of people in ecosystems. This approach focuses on the maintenance of social and ecological resilience to change as the main management objective. I developed a structured framework that examines a resource system's social and ecological dynamics and the supply of provisioning and regulatory ecosystem services. Systems modelling was used to capture the overall behaviour of forest resources in the Cranbrook timber supply area and as a foundation for developing scenarios that identified a range of future ecosystem conditions. I then used spatio-temporal simulation models to capture a range of future environmental and social conditions, including climate change. Natural disturbance was implemented to reflect historic variability. The supply of ecosystem services, under all scenarios, oscillated through time driven by the interaction of natural disturbance and forest management, making a constant supply unattainable. A sustainable timber supply is possible if harvest levels are lower than those currently prevailing; suitable habitat for grizzly bears can be sustained at high or low levels depending on road densities and access rules. A social-ecological approach is well suited to understanding drivers of change, sources of uncertainty, and in managing the supply of ecosystem services from dynamic ecosystems.
机译：随着气候的不断变化，预计加拿大森林的自然干扰将增加。这将导致森林生态系统服务供应的可变性增加，从而带来不确定性。我使用社会生态系统理论来开发一种森林管理方法，该方法可以识别并纳入时空动态。社会生态方法整合了人们在生态系统中的作用。这种方法侧重于保持社会和生态变化的适应力，将其作为主要管理目标。我开发了一个结构化的框架，该框架检查资源系统的社会和生态动态以及供应和监管生态系统服务的供应。系统建模用于捕获Cranbrook木材供应区域中森林资源的整体行为，并作为开发确定一系列未来生态系统条件的方案的基础。然后，我使用时空模拟模型来捕获一系列未来的环境和社会条件，包括气候变化。实施自然干扰以反映历史变化。在所有情况下，由于自然干扰和森林管理之间的相互作用，生态系统服务的供应会随着时间的推移而波动，从而无法获得稳定的供应。如果采伐水平低于目前的水平，则可持续的木材供应是可能的；取决于道路密度和交通规则，高灰熊的合适栖息地可以维持在较高或较低的水平。社会生态学方法非常适合理解变化的驱动因素，不确定性来源以及管理动态生态系统提供的生态系统服务。

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  • 作者

    Morgan, Donald G.;

  • 作者单位

    University of Northern British Columbia (Canada).;

  • 授予单位 University of Northern British Columbia (Canada).;
  • 学科 Agriculture Forestry and Wildlife.
  • 学位 M.Sc.
  • 年度 2011
  • 页码 173 p.
  • 总页数 173
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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