植物生态学报 ›› 2016, Vol. 40 ›› Issue (1): 80-91.DOI: 10.17521/cjpe.2015.0267

• 综述 • 上一篇    

植物反射光谱对水分生理变化响应的研究进展

刘畅, 孙鹏森*, 刘世荣   

  1. 中国林业科学研究院森林生态环境与保护研究所, 国家林业局森林生态环境重点实验室, 北京 100091
  • 出版日期:2016-01-31 发布日期:2016-01-28
  • 通讯作者: 孙鹏森
  • 作者简介:

    # 共同第一作者

  • 基金资助:
    国家自然科学基金(31290223)。

A review of plant spectral reflectance response to water physiological changes

LIU Chang, SUN Peng-Sen*, LIU Shi-Rong   

  1. Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Key Laboratory of Forest Ecology and Environment, State Forestry Administration, Beijing 100091, China
  • Online:2016-01-31 Published:2016-01-28
  • Contact: Peng-Sen SUN
  • About author:

    # Co-first authors

摘要:

实时、无损伤地探测植物的水分及生理变化是高光谱遥感的深层次应用。由水分胁迫引发的植物一系列反射光谱响应体现了碳-氮-水耦合作用的结果。以往的研究大多集中于单一因素的响应, 而忽略了多因素交互作用。该文综述和分析了植物水分状况变化引起的直接和间接光谱响应机制, 包括植物水分含量、色素、养分状况、光合作用和叶绿素荧光指标的光谱响应及其内在的关联, 探讨了反射光谱在探测植物水分生理活动应用中的主要方法与最新技术, 并指出碳-氮-水多指标、多时空尺度的综合分析对于估测植被生产力及其对气候变化的响应具有重要意义。

关键词: 植物反射光谱, 水分胁迫, 水分生理, 色素, 营养元素, 光合作用, 叶绿素荧光

Abstract:

Spectral reflectance is a new, real time and non-destructive hyperspectral remote sensing application to monitor plant water status and physiological changes. The spectral reflectance responses induced by water stress reflect the interaction and coupling of carbon, nitrogen and water cycles. A majority of previous studies focused on a specific structural or physiological effect on spectral reflectance with little attention on their interactions. This paper reviewed and synthesized the direct and indirect spectral responses caused by changes in plant water content, pigments, nutrient status, photosynthesis and chlorophyll fluorescence indices and their internal association. This paper also discussed the common approaches and the new techniques in applying spectral reflectance for detecting water status and physiological activities in plants. This paper concluded that analysis of the spectral reflectance at multiple temporal or spatial scales might have a potential application in projecting vegetation productivities, particularly in the context of climate change.

Key words: plant spectral reflectance, water stress, water physiology, pigment, nutrient element, photosynthesis, chlorophyll fluorescence