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Multi-Scale Remote Sensing for Fall Armyworm Monitoring and Early Warning Systems

机译:用于秋季武器监测和预警系统的多尺度遥感

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Fall armyworm (FAW) is a polyphagus pest with a preference for young maize leaves that relocates to the cob during cob development and can devastate maize yields. Time series anomaly change detection and first derivative growth pattern analyses were conducted under the hypothesis that, if unimpeded and occurring during the vegetativegrowth stage, FAW presence will result in a reduction of the LAI or total green biomass (NDVI) of the crop. We have conducted observations NDVI/LAI at three different scales from continental to field scales., (i) Sentinel-2 a+b and (ii) micro-satellite Planet Scope, (iii) multispectral camera. Correlations between LAI and (i) NDVI of (i, ii, iii) were R2 0.60, 0.66 and 0.35, respectively. The NDVI time series and first derivative were then compared to the FAW damage recorded using a mobile app.
机译:秋季武器(一汽)是一种多孔害虫,优选幼玉叶叶,其在COB开发期间迁移到COB,并且可以使玉米产量沉浸。时间序列异常变化检测和第一衍生生长模式分析是在假设下进行的,如果在营养生殖器流动期间未挤出和发生,直到巨大的存在将导致诸如作物的赖或全绿生物量(NDVI)减少。我们在大陆到现场尺度的三个不同尺度下进行了观察结果。(i)Sentinel-2 A + B和(ii)微卫星行星范围,(iii)多光谱相机。 (I,II,III)的LAI和(I)NDVI之间的相关性分别为R2 0.60,0.66和0.35。然后将NDVI时间序列和第一衍生物与使用移动应用程序记录的一汽损坏进行比较。

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