Tracing photosynthetic electron transport rate based on hyperspectral reflectance
Tracing photosynthetic electron transport rate based on hyperspectral reflectance
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基于高光谱反射率追踪光合电子传输速率
DOI：
10.1109/igarss.2016.7729441
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Rei Sonobe
中科院分区：
文献类型：
--
作者：
Quan Wang;Rei Sonobe
叶绿素荧光是非破坏性地了解叶片光化学和非光化学过程的常用方法。在所有的荧光参数中，光合作用电子传递速率(ETR)是一个有用的碳吸收效率的指标。传统上，脉冲幅度调制(PAM)荧光法是测量ETR的关键技术，但不适用于大规模监测。或者，高光谱遥感在这方面有很大的潜力，因此已经开发了由高光谱反射率产生的几个指数来追踪ETR。在这项研究中，我们广泛地考察了一个典型的落叶树种(Fagus Crenata)在寒温带山区早期发布的12个叶ETR示踪指数的表现。此外，还根据原始反射光谱和一阶导数反射光谱开发了新的高光谱指数。结果表明，我们提出的指数(dmND680,540,835)对日照叶片和遮荫叶片都适用，并且具有较高的稳健性，具有普遍应用的潜力。
Chlorophyll fluorescence is a common approach for understanding leaf photochemical and nonphotochemical processes nondestructively. Among all fluorescence parameters, the photosynthetic electron transport rate (ETR) is a useful indicator of the efficiency of carbon uptake. Traditionally, Pulse Amplitude Modulation (PAM) fluorometry was a key technique for measuring ETR, but it is not applicable for large-scale monitoring. Alternatively, hyperspectral remote sensing has a great potential for this purpose and as thus several indices generated from hyperspectral reflectance have been developed for tracing ETR. In this study, we have extensively examined the performance of twelve early published indices for tracing leaf ETR of a typical deciduous species (Fagus crenata) in a cold-temperate mountainous area. Furthermore, developing of new hyperspectral indices has also been conducted based on both original and first derivative reflected spectra. Results revealed that our proposed index (dmND680, 540, 835) was applicable for both sunlit and shaded leaves and had a high robustness, suggesting its potential for a general application.
影响因子：
6.8
作者：
AKAIKE, H
通讯作者：
AKAIKE, H
植物作为植物传感器：木本植物对 RDX 暴露的生理反应和远程检测的潜力
影响因子：
2.3
作者：
J. Zinnert
通讯作者：
J. Zinnert
影响因子：
3.7
作者：
Asner, Gregory P.;Martin, Roberta E.;Vitousek, Peter M.
通讯作者：
Vitousek, Peter M.