Growth and survival of lodgepole pine genotypes under extreme climate events: risk assessment and climate change adaptation strategies

我们通过识别与气候变化相关的风险，并通过制定战略来减轻或补救对加拿大森林资源的影响，在目标区域“自然资源和能源”中解决研究主题“环境绩效”。 我们利用一个独特的研究机会，研究气候变异性和气候变化对加拿大西部商业上最重要的自然资源之一的松林的影响。这项研究是基于破坏性的整树取样的长期遗传田间试验，被破坏的山松甲虫流行病在不列颠哥伦比亚省。全树干分析使我们能够重建历史气候对重要性状的影响，如树木体积增量和碳封存。遗传试验设计使我们能够得出结论的一组代表性的基因型复制在广泛的种植环境，并确定弹性和生产性的基因型再造林。通过借鉴两种独立的实验和实证研究方法，遗传种源测试和树木年代重建，我们的目标是开发与气候变化相关的风险的可靠估计，并提供公共政策制定的知识基础。我们的支持机构BC省森林部制定并实施了有关造林树种选择、测试和分配的省级政策和法规，并在实施以科学为基础的政策方面有着良好的记录。在不列颠哥伦比亚省，每年种植约8000万棵黑松幼苗，拟议的项目可以通过利用这一活动来提高黑松人工林的遗传恢复力和生产力，从而为加拿大带来深远的利益。

We addresses the research topic "Environmental Performance" within the target area "Natural Resources and Energy" by identifying risks associated with climate change, and by developing strategies to mitigate or remediate impacts on Canada's forest resources. We take advantage of a unique research opportunity to study effects of climate variability and climate change on lodgepole pine forest, one of the commercially most important natural resources in western Canada. The research is based on destructive whole-tree sampling of long-term genetic field trials that were destroyed by the mountain pine beetle epidemic in British Columbia. Whole-tree stem analysis allows us to reconstruct historical climate effects on important traits, such as tree volume increments and carbon sequestration. The genetic trial design allows us to draw conclusions for a representative set of genotypes replicated over a wide range of planting environments, and to identify resilient and productive genotypes for reforestation. By drawing on two independent experimental and empirical research approaches, genetic provenance testing and dendrochronological reconstructions, we aim to develop dependable estimates of risks associated with climate change, and to deliver a knowledge base for public policy development. Our supporting organization, The BC Ministry of Forests, develops and implements provincial policies and regulations regarding selection, testing, and distribution of tree seed for reforestation and has a track-record of implementing science-based policy. Approximately 80 million lodgepole pine seedlings per year are planted in British Columbia, and the proposed project could yield profound benefits to Canada by leveraging this activity to improve the genetic resilience and productivity of planted lodgepole pine forests.