期刊论文

Study on Physiological and Biochemical Characteristics of Leaves of Purple Bamboo Plum Under Uranium Stress Based on Remote Sensing Hyperspectral Data

中文

南华大学学报(自然科学版)

1673-0062

2022

36

01

25-31

10.19431/j.cnki.1673-0062.2022.01.004

装备预研重点实验室基金项目（6142A010403）； 东华理工大学核资源与环境国家重点实验室开放基金项目（NRE1910）； 湖南省自然科学基金项目（2020JJ5481）；

本校为第一机构

为揭示铀胁迫下紫竹梅叶片遥感光谱参量对生化指标的指示能力，室内设置了8个不同铀浓度的培养液，利用Pearson相关系数法、逐步回归分析法等，建立紫竹梅叶片原始光谱、一阶导数、二阶导数等光谱参量与叶片叶绿素、丙二醛、过氧化酶、铀含量等生化指标之间的关系模型。研究结果表明，初、中、晚三个时期的紫竹梅叶片光谱曲线差距不明显，“红谷”“红边”较为突出；通过Pearson相关系数法筛选出紫竹梅叶片生化指标与光谱参量的相关性强弱关系，发现生化指标与光谱参量的相关性均属于中度相关；分别建立了叶绿素含量、丙二醛含量、过氧化酶含量、叶片铀含量的逐步回归模型，其中，叶片铀含量估测...

In order to reveal the indication ability of remote sensing spectral parameters of purple bamboo plum leaves to biochemical indexes under uranium stress,eight culture solutions with different uranium concentrations were set up indoors.Pearson correlation coefficient method and stepwise regression analysis were used to establish the relationship model between spectral parameters such as original spectrum,first derivative and second derivative of purple bamboo plum leaves and other biochemical indexes such as leaf chlorophyll,malondialdehyde,pero...