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Applications of Remote Sensing to Alien Invasive Plant Studies

机译:遥感技术在外来入侵植物研究中的应用

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Biological invasions can affect ecosystems across a wide spectrum of bioclimatic conditions. Therefore, it is often important to systematically monitor the spread of species over a broad region. Remote sensing has been an important tool for large-scale ecological studies in the past three decades, but it was not commonly used to study alien invasive plants until the mid 1990s. We synthesize previous research efforts on remote sensing of invasive plants from spatial, temporal and spectral perspectives. We also highlight a recently developed state-of-the-art image fusion technique that integrates passive and active energies concurrently collected by an imaging spectrometer and a scanning-waveform light detection and ranging (LiDAR) system, respectively. This approach provides a means to detect the structure and functional properties of invasive plants of different canopy levels. Finally, we summarize regional studies of biological invasions using remote sensing, discuss the limitations of remote sensing approaches, and highlight current research needs and future directions.
机译:生物入侵会在广泛的生物气候条件下影响生态系统。因此,系统地监视物种在广阔区域内的传播通常很重要。在过去的三十年中,遥感一直是进行大规模生态研究的重要工具,但直到1990年代中期才广泛用于研究外来入侵植物。我们从空间,时间和光谱的角度综合了以前对入侵植物遥感的研究成果。我们还将重点介绍最近开发的最新图像融合技术,该技术融合了分别由成像光谱仪和扫描波形光检测和测距(LiDAR)系统同时收集的无源和有源能量。这种方法提供了一种检测不同冠层水平的入侵植物的结构和功能特性的方法。最后,我们总结了使用遥感进行生物入侵的区域研究,讨论了遥感方法的局限性,并强调了当前的研究需求和未来的方向。

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