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首页> 外文期刊>GIScience & remote sensing >Analysis of Post-flood Recruitment Patterns in Braided- Channel Rivers at Multiple Scales Based on an Image Series Collected by Unmanned Aerial Vehicles, Ultra-light Aerial Vehicles, and Satellites
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Analysis of Post-flood Recruitment Patterns in Braided- Channel Rivers at Multiple Scales Based on an Image Series Collected by Unmanned Aerial Vehicles, Ultra-light Aerial Vehicles, and Satellites

机译：基于无人飞行器，超轻型飞行器和卫星采集的图像序列的多尺度辫状河河流洪水后招募模式分析

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摘要

This paper uses imagery captured by ultra-light and unmanned aerial vehicles (ULAVs) in combination with satellite remote sensing to explore vegetation development on braided reaches in the Southern and Eastern French Alps. Findings demonstrate that while asexual reproduction processes dominate, sexual reproduction through seed dissemination and wind transport play a significant role during periods of low flow following large floods. This progressive vegetation establishment leads to a general trend of river corridor narrowing. Key climatic conditions lead some years to be critical to initial vegetation development. Sensitivity to encroachment depends on local controls, such as rainfall conditions, distance to water table, local topography, seed availability, summer temperature, and dryness.
机译：本文将超轻型无人飞行器（ULAV）捕获的图像与卫星遥感技术结合使用，以探索法国南部和东部阿尔卑斯山脉辫状河段的植被发育。研究结果表明，尽管无性繁殖过程占主导地位，但在大洪灾后的低流量时期，通过种子传播和风力传播的有性繁殖起着重要作用。这种渐进的植被建立导致河流走廊变窄的总体趋势。关键的气候条件导致几年对于最初的植被发展至关重要。对侵蚀的敏感性取决于当地的控制，例如降雨条件，到地下水位的距离，当地的地形，种子供应，夏季温度和干燥度。

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  • 来源
    《GIScience & remote sensing》 |2011年第1期|p.50-73|共24页
  • 作者

    Anne Hervouet; Robert Dunford; Herve Piegay; Barbara Belletti; Marie-Laure Tremelo;

  • 作者单位

    University of Lyon, CNRS, UMR 5600, ISIG Technical Platform, Site of ENS Lyon, F-69342 Lyon 07, France;

    rnEnvironmental Change Institute, University of Oxford, South Parks Road, OX13QY, United Kingdom;

    rnUniversity of Lyon, CNRS, UMR 5600, ISIG Technical Platform, Site of ENS Lyon, F-69342 Lyon 07, France;

    rnUniversity of Lyon, CNRS, UMR 5600, ISIG Technical Platform, Site of ENS Lyon, F-69342 Lyon 07, France;

    rnUniversity of Lyon, CNRS, UMR 5600, ISIG Technical Platform, Site of ENS Lyon, F-69342 Lyon 07, France;

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