The basis of resilience in forest tree species and its use in adaptive forest management in Britain
The basis of resilience in forest tree species and its use in adaptive forest management in Britain
复制标题
DOI：
10.1093/forestry/cpu027
复制
发表时间：
2015-01-01
期刊：
影响因子：
2.8
通讯作者：
Cottrell, J. E.
中科院分区：
文献类型：
--
作者：
Cavers, S.;Cottrell, J. E.
未来几十年，森林生态系统面临一系列挑战，其中气候变化、病虫害最为严重。这些挑战将叠加在历史上经过改造和支离破碎的森林的背景上，这些森林为了不同的目标而以多种方式进行管理。由于北温带森林在全球范围内物种匮乏，因此它们对这些挑战的恢复能力从根本上取决于单个物种的恢复能力。然而，应对每一个新威胁的出现不太可能具有成本效益，而且可能不切实际。建立长期复原力的更好策略是利用进化过程，通过自然选择重组种群，最大限度地提高单个树种应对新威胁的能力；换句话说，要有弹性。这些过程取决于物种的内部变异、它们的扩散机制以及它们向种群招募新基因型的能力。在这篇立场文件中，我们回顾了恢复力的理论概念，研究了它如何应用于树木种群，并从这个角度评估了英国森林的知识状况。
Forest ecosystems face a range of challenges in the coming decades, of which climate change, pests and diseases are the most serious. These challenges will be overlaid on a background of historically modified and fragmented forests managed in a wide range of ways for different objectives. As northern temperate forests are species-poor in a global context, their resilience to these challenges is fundamentally dependent on the resilience of individual species. However, dealing with each new threat as it arises is unlikely to be cost-effective and probably impractical. A better strategy for establishing long-term resilience would be to harness evolutionary processes, to maximize the capability of individual tree species to respond to new threats by the reorganization of populations via natural selection; in other words, to be resilient. Such processes depend on the internal variability of species, their mechanisms of dispersal and their ability to recruit new genotypes to a population. In this position paper, we review the theoretical concept of resilience, examine how it might be applied to tree populations and assess the state of knowledge of Britain's forests from this perspective.