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首页> 外文期刊>International journal of remote sensing >Detecting the responses of Masson pine to acid stress using hyperspectral and multispectral remote sensing
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Detecting the responses of Masson pine to acid stress using hyperspectral and multispectral remote sensing

机译：使用高光谱和多光谱遥感检测马尾松对酸胁迫的响应

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摘要

In this study, we detected the spectrum and vegetation index responses of Masson pine to acid stress using ground-based hyperspectral radiometry and satellite-based multispectral remote sensing. From the hyperspectral detection, we found that the spectral reflectance of stressed Masson pine increased with increase in acidity in the visible region, while an opposite result was found in the near-infrared (NIR) region. The simulated normalized difference vegetation index (NDVI) derived from hyperspectral data of Masson pine presented higher values under weaker acid stress in general. Similar results were observed by satellite-derived NDVI across four acidity gradient transects in subtropical China. Both annual average NDVI and inter-annual NDVI trends of Masson pine forest increased with increase in annual average precipitation acidity (pH), indicating that acid stress would inhibit the growth of Masson pine under certain environmental conditions. However, there are limitations and uncertainties in our present work, and the integration of long-term ground-based and satellite-based observations of vegetation growth and acidity deposition is urgently needed.
机译：在这项研究中，我们使用基于地面的高光谱辐射测定法和基于卫星的多光谱遥感技术，检测了马尾松对酸胁迫的光谱和植被指数响应。从高光谱检测中，我们发现，应力马尾松的光谱反射率随可见区中酸度的增加而增加，而在近红外（NIR）区中却发现相反的结果。从马尾松的高光谱数据得出的模拟归一化植被指数（NDVI）通常在弱酸胁迫下表现出较高的值。来自卫星的NDVI在中国亚热带的四个酸度梯度样带上观察到了相似的结果。马尾松林的年平均NDVI和年际NDVI趋势均随年平均降水酸度（pH）的增加而增加，表明酸胁迫在某些环境条件下会抑制马尾松的生长。但是，我们目前的工作存在局限性和不确定性，因此迫切需要将长期的基于地面和基于卫星的植被生长和酸度沉积观测结果整合起来。

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  • 来源
    《International journal of remote sensing》 |2013年第20期|7340-7355|共16页
  • 作者

    Jiaxin Jin; Hong Jiang; Xiuying Zhang; Ying Wang; Xiaodong Song;

  • 作者单位

    International Institute for Earth System Science, Nanjing University, Nanjing 210093, China;

    International Institute for Earth System Science, Nanjing University, Nanjing 210093, China,Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China;

    International Institute for Earth System Science, Nanjing University, Nanjing 210093, China;

    International Institute for Earth System Science, Nanjing University, Nanjing 210093, China;

    Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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