Secondary forest permanence in the Brazilian Amazon

巴西亚马逊次生林的永久性

• 批准号: NE/T014490/1
• 负责人: Jos Barlow
• 金额: $ 1.49万
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FT014490%2F1
• 关键词: Secondary; forest; permanence; Brazilian; Amazon

NERC : Charlotte Caroline Smith : NE/L002604/1As atmospheric carbon dioxide continues to rise, there is a growing need to focus our attention on climate change mitigation. In order to keep the global surface temperature increase below 1.5 degrees Celsius and avoid dangerous climate change, large quantities of carbon dioxide need to be removed from the atmosphere. Forest restoration is one of the most efficient and cost-effective strategies for achieving this, with tropical secondary forest key to recovering carbon stocks. The carbon benefit of secondary forest, which grows on cleared land following abandonment, is determined not only by its extent but also by its permanence. However, the patterns of secondary forest persistence are complex and our understanding of them is limited. A better understanding of this system will allow more realistic estimates of secondary forest carbon potential and will enable forest restoration efforts to be targeted more effectively. Although some studies have estimated the likelihood of persistence on a local scale, no such predictions exist across large regions. This limits our understanding of the tropical carbon balance, which is fundamental in regulating global climate. Secondary forest is a valuable resource and it is vital that we improve our understanding of it so we can ensure its potential carbon benefits are achieved.Drawing on previous work, we will expand local-scale models of secondary forest dynamics to encompass the entire Brazilian Amazon. We will model the probability of secondary forest growth and clearance using landscape factors (e.g. distance from roads) and forest characteristics (e.g. patch size) known to influence forest permanence and estimate the carbon potential of future secondary forest cover. This is a first step in improving our understanding of an ecosystem with increasing ecological and economic importance so that it can be appropriately accounted for in future policy decisions.Climate change is a global challenge, affecting economies and communities indiscriminately. As policy-makers around the world seek to understand how it can be mitigated, reforestation presents one of the most efficient, cost-effective and readily available strategies for preventing a climate disaster2. This project will contribute to ensuring that we have a sufficient understanding of secondary forest ecosystems which, if harnessed effectively, could act as a buffer while we transition to sustainable, fossil-fuel free economies. The Brazilian Amazon is vast and changes in its carbon balance have climate implications of global significance. In conducting this research across the entire region, we extend its relevance beyond local decision-makers into the international climate policy arena. The outputs will be relevant for international collaborations modelling future climate, policymakers interested in harnessing regeneration for carbon storage, and the broader scientific community studying the tropical carbon balance.Beyond scientific output, this project will foster a lasting, collaborative relationship between two leading universities. It will combine the ecology and biodiversity expertise of Lancaster University with the remote sensing and spatial analysis specialties of the group at the University of British Columbia; resulting in innovative new research that pushes the boundaries of current environmental models. This interdisciplinary collaboration will enable the sharing of resources to break down former technological and data-access barriers to generate increased impact and streamline the research process. Joint research efforts will enable the sharing of world-class facilities and will facilitate the development of graduate students into highly skilled, global citizens.

NERC：夏洛特·卡罗琳·史密斯（Charlotte Caroline Smith）：NE/L002604/1 AS大气二氧化碳继续上升，越来越需要将注意力集中在缓解气候变化上。为了使全球表面温度升高以下1.5摄氏度并避免危险的气候变化，需要从大气中除去大量二氧化碳。森林恢复是实现这一目标的最有效，最具成本效益的策略之一，热带二级森林恢复了碳库存的关键。遗弃后在清空的土地上生长的二级森林的碳益处不仅取决于其范围，而且还取决于其永久性。但是，次要森林持久性的模式很复杂，我们对它们的理解是有限的。对该系统的更好理解将允许对二级森林碳潜力进行更现实的估计，并使森林恢复工作能够更有效。尽管一些研究估计了局部规模持久性的可能性，但在大型地区没有这种预测。这限制了我们对热带碳平衡的理解，这对于调节全球气候至关重要。次要森林是一种宝贵的资源，至关重要的是，我们可以提高对它的理解，以确保其潜在的碳效率得到实现。绘制以前的工作，我们将扩大次要森林动态的本地规模模型，以涵盖整个巴西亚马逊。我们将使用景观因子（例如，与道路距离）和森林特征（例如斑块大小）对二次森林生长和清除的可能性进行建模，已知会影响森林的持久性并估算未来次级森林覆盖的碳潜力。这是提高生态和经济重要性的提高我们对生态系统的理解的第一步，以便可以在未来的政策决策中适当地解释它。ClimateCharge是一项全球挑战，是一项全球挑战，对经济和社区无关紧要。随着世界各地的政策制定者试图了解如何缓解它，重新造林是预防气候灾难的最有效，最具成本效益且最容易获得的策略之一。该项目将有助于确保我们对二级森林生态系统有足够的了解，如果有效利用，当我们过渡到可持续的化石燃料自由经济体时，可以有效地充当缓冲。巴西亚马逊很大，其碳平衡的变化具有全球意义的气候影响。在整个地区进行这项研究时，我们将其相关性扩展到了本地决策者之外，以纳入国际气候政策领域。这些产出将与建模未来气候的国际合作，有兴趣利用碳存储再生的决策者以及研究热带碳平衡的更广泛的科学社区有关。Beyond科学输出，该项目将促进两个主要大学之间的持久，协作的关系。它将将兰开斯特大学的生态和生物多样性专业知识与不列颠哥伦比亚大学小组的遥感和空间分析专业相结合；导致创新的新研究，推动了当前环境模型的界限。这种跨学科的合作将使资源共享能够打破以前的技术和数据访问障碍，从而产生增加的影响并简化研究过程。联合研究工作将使世界一流的设施共享，并将促进研究生发展成高技能的全球公民。