A dataset of leaf inclination angles for temperate and boreal broadleaf woody species

Knowledge about leaf inclination angle distribution is essential for determining the radiation transmission within vegetation canopies and to indirectly quantify canopy attributes such as leaf area index and G-function. For this purpose, we measured and compiled an extensive dataset of leaf inclination angles for 138 deciduous broadleaf woody species commonly found in temperate and boreal ecoclimatic regions. We released an R routine to calculate leaf inclination angle statistics, leaf inclination angle distribution type and G-function from measured leaf inclination angles, which can be used to parametrize optical measurements of light transmittance and for radiative transfer modeling purposes. The leaf inclination angle distribution type can be also used as a plant functional trait to understand light use and photosynthetic plant strategies and to perform functional diversity analyses.叶片倾角分布相关知识对于明确植被冠层内的辐射传输过程，以及间接量化冠层属性（如叶面积指数（Leaf Area Index）和G函数（G-function））至关重要。为此，我们针对温带与寒带生态气候区域常见的138种落叶阔叶木本植物，实测并汇编了一套大规模叶片倾角数据集。我们开发并发布了一款R语言例程，可基于实测叶片倾角数据计算叶片倾角统计量、叶片倾角分布类型与G函数，该工具可用于参数化光透射率的光学测量，以及开展辐射传输模拟相关工作。叶片倾角分布类型还可作为植物功能性状，用于解析植物的光能利用策略与光合策略，并进行功能多样性分析。

搜集汇总

背景与挑战

背景概述

该数据集收集了138种温带和寒带落叶阔叶木本植物的叶片倾角数据，旨在支持植被冠层辐射传输建模和叶面积指数等参数的间接量化。数据集包含原始测量数据、元数据以及用于计算统计量和G函数的R脚本，适用于生态学研究和光学测量应用。