叶绿素荧光及其在水分胁迫监测中的研究进展

发布时间：2018-04-29 15:37

本文选题：叶绿素荧光 + 水分胁迫　；参考：《光谱学与光谱分析》2017年09期

【摘要】：水分胁迫是一种常见的植被胁迫状态,能够减小细胞水势,引起气孔关闭,破坏光合进程。叶绿素荧光是植物光合作用的探针,可以很好的反应植物生理特征,能够快速、灵敏、无损伤和深层次监测水分胁迫状态。由于叶绿素荧光的影响因素较多,使得水分胁迫与叶绿素荧光的关系比较复杂。从光合作用角度阐述了叶绿素荧光的产生原理,分析了叶绿素、叶片结构、冠层结构和环境因子等对叶绿素荧光的影响,总结了叶绿素荧光在水分胁迫监测中的应用;针对叶绿素荧光复杂的生理基础、影响因素及其在水分胁迫监测中的研究进展,提出了一些科学问题和未来的研究方向,为叶绿素荧光的进一步深入研究提供参考,为叶绿素荧光遥感的进一步应用提供理论支持,为陆地生态系统的准确评估提供借鉴。
[Abstract]:Water stress is a common state of vegetation stress, which can reduce cell water potential, cause stomatal closure and destroy photosynthetic process. Chlorophyll fluorescence is a probe for plant photosynthesis, which can respond to plant physiological characteristics well, and can monitor water stress state quickly, sensitively, without damage and deeply. The relationship between water stress and chlorophyll fluorescence is more complicated because of the influence factors of chlorophyll fluorescence. From the perspective of photosynthesis, the production principle of chlorophyll fluorescence was expounded, the effects of chlorophyll, leaf structure, canopy structure and environmental factors on chlorophyll fluorescence were analyzed, and the application of chlorophyll fluorescence in water stress monitoring was summarized. In view of the complex physiological basis of chlorophyll fluorescence, the influencing factors and the research progress in water stress monitoring, some scientific problems and future research directions are put forward, which provide a reference for the further study of chlorophyll fluorescence. It provides theoretical support for the further application of chlorophyll fluorescence remote sensing and provides reference for the accurate assessment of terrestrial ecosystem.
【作者单位】：北京师范大学减灾与应急管理研究院;地表过程与资源生态国家重点实验室;环境演变与自然灾害教育部重点实验室;福州大学环境与资源学院;
【基金】：国家国际科技合作专项(2013DFG21010) 中央高校基本科研业务费专项资金教育部创新团队项目(IRT1108)资助
【分类号】：O657.3;Q945

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