Vegetation monitoring is one of the essential applications of remote sensing. Regarding agricultural lands, a primary goal is crop state assessment throughout the growing season. Remote sensing techniques make use of multispectral data to estimate plant biophysical and biochemical characteristics by implementing quantitative relationships between crop growth variables and spectral properties. C...

Pine wood nematode disease is a destructive to the ecological environment and forest resources. The produced by Bursaphelenchus xylophilus, onset rate extremely fast pathogenesis of not clear. Prevention this still important in production, so it great significance explore its early diagnosis. In study, changes chlorophyll fluorescence dynamic induction parameters, non-photochemical quenching pa...

Assessing photosynthesis rates with remote sensing is important for tracking the physiological state of plants. The photochemical reflectance index (PRI) is a good estimator of short-term light-use efficiency (LUE) at the leaf scale but its responses to environmental factors are poorly understood. In this study, we assessed changes in the responses of the PRI to ozone exposure and to an increas...

PDF HTML阅读 XML下载 导出引用 引用提醒 不同等级石漠化生境下石生苔藓叶绿素含量和叶绿素荧光参数研究 DOI: 10.5846/stxb202207192061 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金项目（31960262，32260313）；贵州省科技计划项目（2019年度学术新苗培养及创新探索专项项目）；贵中医博士启动（2020）44 Chlorophyll content and fluorescence parameters of epilithic mosses in habitats different rocky-desertification grades Author: Affiliation: Fund Project: National Natural Science Foundation China ...

............................................................................................................................................................. 737 I. The Role of Photosynthesis in Ecological Research ..................................................................................... 738 II. Definition and Explanation of Fluorescence Parameters .....................................

Electronic excitation energy transfer was studied for chlorophyll a in a solid solution of poly­ styrene by measuring the concentration quenching of quantum yield, polarization, and lifetime of fluorescence. The concentration quenching of the experimental fluorescence quantum yield is adequately described by Kelly and Porter’s empirical formula (Proc. Roy. Soc., Lond. A 315, 149, 1970), and of ...