| 王正庆,肖策,车永飞,李天鹏,李策,丁华栋,宋静,贺海洋,马艳.基于遥感高光谱的铀胁迫下紫竹梅叶片生化指标建模研究[J].南华大学学报(自然科学版),2022,(1):25~31.[WANG Zhengqing,XIAO Ce,CHE Yongfei,LI Tianpeng,LI Ce,DING Huadong,SONG Jing,HE Haiyang,MA Yan.Study on Physiological and Biochemical Characteristics of Leaves of Purple Bamboo Plum Under Uranium Stress Based on Remote Sensing Hyperspectral Data[J].Journal of University of South China(Science and Technology),2022,(1):25~31.] |
| 基于遥感高光谱的铀胁迫下紫竹梅叶片生化指标建模研究 |
| Study on Physiological and Biochemical Characteristics of Leaves of Purple Bamboo Plum Under Uranium Stress Based on Remote Sensing Hyperspectral Data |
| 投稿时间：2021-11-02 |
| DOI：10.19431/j.cnki. 1673-0062.2022.01.004 |
| 中文关键词: 紫竹梅 叶片 高光谱 铀 生化指标 |
| 英文关键词:purple bamboo plum leaf hyperspectral uranium biochemical indexes |
| 基金项目: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) |
| 作者 | 单位 | E-mail | | 王正庆 | 南华大学 资源环境与安全工程学院,湖南 衡阳 421001
东华理工大学 核资源与环境国家重点实验室, 江西 南昌 330013
稀有金属矿产开发与废物地质处置技术湖南省重点实验室,湖南 衡阳 421001 | wzhq20082008@126.com | | 肖策 | 南华大学 资源环境与安全工程学院,湖南 衡阳 421001 | | | 车永飞 | 核工业北京地质研究院 遥感信息与图像分析技术国家级重点实验室,北京 100029 | | | 李天鹏 | 枣庄学院 城市与建筑工程学院,山东 枣庄 277160 | | | 李策 | 南华大学 资源环境与安全工程学院,湖南 衡阳 421001 | | | 丁华栋 | 南华大学 资源环境与安全工程学院,湖南 衡阳 421001 | | | 宋静 | 南华大学 资源环境与安全工程学院,湖南 衡阳 421001 | | | 贺海洋 | 南华大学 资源环境与安全工程学院,湖南 衡阳 421001 | | | 马艳 | 南华大学 资源环境与安全工程学院,湖南 衡阳 421001 | |
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| 中文摘要: |
| 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,叶片铀含量估测模型与叶绿素含量估测模型的构建效果较好,R2分别为0.486、0.442;过氧化物酶活性、丙二醛含量模型的精度检验效果较好,R2分别为0.645、0.580。 |
| 英文摘要: |
| 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, peroxidase and uranium content. The results showed that there was no obvious difference in the spectral curves of purple bamboo plum leaves in the early, middle and late stages, and the “Red Valley” and “red edge” were more prominent, it is found that the correlations between biochemical indicators and spectral parameters are all medium-level correlations; The correlation between biochemical indexes and spectral parameters of purple bamboo plum leaves was screened by Pearson correlation coefficient method; The stepwise regression models of chlorophyll content, malondialdehyde content, peroxidase content and leaf uranium content were established respectively. The results of leaf uranium content estimation model and chlorophyll content estimation model were better, and R2 were 0.486 and 0.442 respectively; The accuracy test results of peroxidase activity and malondialdehyde content model were good, R2 were 0.645 and 0.580 respectively. |
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