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Probing for climate change stressors in managed Jack Pine stands: Implications for forestry and forest management

探讨受管理的杰克松林中的气候变化压力源：对林业和森林管理的影响

基本信息

批准号：
412172-2010
负责人：
Anand, Madhur
金额：
$ 1.82万
依托单位：
University of Guelph
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2011
资助国家：
加拿大
起止时间：
2011-01-01 至 2012-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=490836
关键词：
Probing climate change stressors managed

项目摘要

Domtar is the largest marketer and manufacturer of uncoated freesheet paper in North America and second largest in the world. The business relies on wood fibre to produce its' pulp and paper products. It also produces lumber and is involved in the management of forest resources. An area of uncertainty in sustainable forest management is how harvesting and follow-up silviculture might affect water availability and use and therefore the growth of trees, particularly in the face of climate change, that are the future supply of wood. Research that addresses key uncertainties in this area would thus be valuable to Domtar to improve cost-effectiveness in production and in sustainable forest management. In this project we will combine tree-ring analysis (growth rates from basal area increments) with carbon isotope based water use efficiency analysis to examine how trees in jack pine stands under different management history respond to various stressors including climate change. The information gained from a combination of these analyses can help (1) verify perturbation history, (2) establish the response of pine trees to different intensities and duration of perturbation, (3) identify whether forests are likely to be stressed directly by climate (water, temperature) or if some other stressor may be present and (4) present recommendations for future management to increase productivity under climate change scenarios.

Domtar 是北美最大、世界第二大的无涂层免费纸张营销商和制造商。该企业依靠木纤维生产纸浆和纸产品。它还生产木材并参与森林资源的管理。可持续森林管理的一个不确定性领域是采伐和后续造林可能如何影响水资源的供应和利用，从而影响树木的生长，特别是在气候变化的情况下，树木是未来的木材供应。因此，解决该领域关键不确定性的研究对于 Domtar 来说非常有价值，有助于提高生产和可持续森林管理的成本效益。在这个项目中，我们将把树木年轮分析（断面积增量的增长率）与基于碳同位素的水利用效率分析结合起来，研究不同管理历史下的短叶松树木如何应对包括气候变化在内的各种压力。从这些分析的组合中获得的信息可以帮助（1）验证扰动历史，（2）确定松树对不同扰动强度和持续时间的响应，（3）确定森林是否可能直接受到气候（水、温度）的压力，或者是否可能存在其他压力源，以及（4）提出未来管理的建议，以提高气候变化情景下的生产力。