Holland Ross, Castro Guilherme, Chavana-Bryant Cecilia, Levy Ron, Moat Justin, Robson Thomas, Wilkinson Tim, Wilkes Phil, Yang Wanxin, Disney Mathias
East Point Geo, Ashgrove House, Monument Park, Chalgrove OX44 7RW, UK.
Department of Geography, University College London, Gower Street, London WC1E 6BT, UK.
R Soc Open Sci. 2024 Mar 13;11(3):230603. doi: 10.1098/rsos.230603. eCollection 2024 Mar.
Giant sequoias () are some of the UK's largest trees, despite only being introduced in the mid-nineteenth century. There are an estimated half a million giant sequoias and closely related coastal redwoods () in the UK. Given the recent interest in planting more trees, partly due to their carbon sequestration potential and also their undoubted public appeal, an understanding of their growth capability is important. However, little is known about their growth and carbon uptake under UK conditions. Here, we focus on . and use three-dimensional terrestrial laser scanning to perform detailed structural measurements of 97 individuals at three sites covering a range of different conditions, to estimate aboveground biomass (AGB) and annual biomass accumulation rates. We show that UK-grown can sequester carbon at a rate of 85 kg yr, varying with climate, management and age. We develop new UK-specific allometric models for that fit the observed AGB with > 0.93 and bias < 2% and can be used to estimate biomass more generally. This study provides the first estimate of the growth and carbon sequestration of UK open-grown and provides a baseline for estimating their longer-term carbon sequestration capacity.
巨杉（）是英国最大的树木之一，尽管它们直到19世纪中叶才被引入。据估计，英国有50万棵巨杉以及与之密切相关的海岸红杉（）。鉴于近期人们对种植更多树木的兴趣，部分原因在于其碳固存潜力以及无疑的公众吸引力，了解它们的生长能力很重要。然而，对于它们在英国条件下的生长和碳吸收情况却知之甚少。在此，我们聚焦于。并使用三维地面激光扫描技术，对覆盖一系列不同条件的三个地点的97棵个体进行详细的结构测量，以估算地上生物量（AGB）和年生物量积累率。我们表明，在英国种植的可以以每年85千克的速率固存碳，其速率随气候、管理方式和树龄而变化。我们针对开发了新的英国特定异速生长模型，该模型拟合观测到的AGB时，决定系数> 0.93且偏差< 2%，并且可更广泛地用于估算生物量。本研究首次估算了英国开阔种植的的生长和碳固存情况，并为估算它们的长期碳固存能力提供了一个基线。
