Biomass allocation of boreal trees in response to climate and soil interactions

北方树木生物量分配对气候和土壤相互作用的响应

• 批准号: RGPIN-2019-04777
• 负责人: Pinno, Brad
• 金额: $ 2.4万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=737852
• 关键词: Biomass; allocation; boreal; trees; response

The overarching goal of my research program is to better understand tree growth and carbon accumulation in relation to soil and climate in the boreal mixedwood forest. In particular, the proposed research projects will study how trees allocate biomass to roots, leaves and stems and how this biomass allocation varies by soil, climate and most importantly, their interactions. By studying how trees grow in relation to resources, more reliable predictions of future growth under different climatic conditions will be possible. Specific research projects will examine different scales (ranging from microsite to landscape) and species biomass allocation responses to climate and soil interactions. Objective 1 will address biomass allocation of trembling aspen across the landscape, Objective 2 will examine the site level spatial patterns of resource availability and biomass allocation in jack pine, and Objective 3 will focus on biomass allocation of juvenile white spruce to experimentally manipulated resource conditions. The proposed research will help ensure the sustainability of forest lands by addressing a critical uncertainty in forest management, growth patterns and biomass allocation of trees on different site types. Specifically, this research will improve the application of site specific silvicultural tools, allow for better estimates of carbon accumulation in forests, and aid in the development of appropriate climate adaptation programs.

我的研究项目的首要目标是更好地了解北方混交林中树木的生长和碳积累与土壤和气候的关系。特别是，拟议的研究项目将研究树木如何将生物量分配给根、叶和茎，以及这种生物量分配如何随土壤、气候以及最重要的是它们之间的相互作用而变化。通过研究树木的生长与资源的关系，可以更可靠地预测不同气候条件下未来的生长情况。具体的研究项目将研究不同的尺度（从微型场地到景观）和物种生物量分配对气候和土壤相互作用的响应。目标1将研究颤杨在景观中的生物量分配，目标2将研究短叶松资源可用性和生物量分配的立地水平空间格局，目标3将重点研究白云杉幼树在实验控制的资源条件下的生物量分配。拟议的研究将通过解决森林管理、生长模式和不同地点类型树木生物量分配方面的关键不确定性，帮助确保林地的可持续性。具体来说，这项研究将改善特定地点造林工具的应用，允许更好地估计森林中的碳积累，并有助于制定适当的气候适应计划。