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首页> 外文期刊>Remote Sensing >Remote Sensing of Explosives-Induced Stress in Plants: Hyperspectral Imaging Analysis for Remote Detection of Unexploded Threats
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Remote Sensing of Explosives-Induced Stress in Plants: Hyperspectral Imaging Analysis for Remote Detection of Unexploded Threats

机译：爆炸物在植物中的胁迫遥感：高光谱成像分析，用于未爆炸威胁的远程检测

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Explosives contaminate millions of hectares from various sources (partial detonations, improper storage, and release from production and transport) that can be life-threatening, e.g., landmines and unexploded ordnance. Exposure to and uptake of explosives can also negatively impact plant health, and these factors can be can be remotely sensed. Stress induction was remotely sensed via a whole-plant hyperspectral imaging system as two genotypes of Zea mays , a drought-susceptible hybrid and a drought-tolerant hybrid, and a forage Sorghum bicolor were grown in a greenhouse with one control group, one group maintained at 60% soil field capacity, and a third exposed to 250 mg kg ?1 Royal Demolition Explosive (RDX). Green-Red Vegetation Index (GRVI), Photochemical Reflectance Index (PRI), Modified Red Edge Simple Ratio (MRESR), and Vogelmann Red Edge Index 1 (VREI1) were reduced due to presence of explosives. Principal component analyses of reflectance indices separated plants exposed to RDX from control and drought plants. Reflectance of Z . mays hybrids was increased from RDX in green and red wavelengths, while reduced in near-infrared wavelengths. Drought Z . mays reflectance was lower in green, red, and NIR regions. S . bicolor grown with RDX reflected more in green, red, and NIR wavelengths. The spectra and their derivatives will be beneficial for developing explosive-specific indices to accurately identify plants in contaminated soil. This study is the first to demonstrate potential to delineate subsurface explosives over large areas using remote sensing of vegetation with aerial-based hyperspectral systems.
机译：爆炸物会污染各种可能威胁生命的来源（部分爆炸，不适当的存储以及生产和运输释放的公顷土地），例如地雷和未爆炸弹药。爆炸物的接触和吸收也会对植物健康产生负面影响，并且可以远程感测这些因素。通过全植物高光谱成像系统远程感测到胁迫诱导，因为两个基因型的玉米玉米，一种干旱易感杂种和一种耐旱杂种，以及一种饲草高粱双色在带有一个对照组的温室中生长，一组保持在60％的土壤田间使用，三分之一的暴露于250 mg kg？1的皇家爆破炸药（RDX）。由于存在爆炸物，绿-绿植被指数（GRVI），光化学反射指数（PRI），改良的红边简单比率（MRESR）和沃格尔曼红边指数1（VREI1）降低了。反射系数的主成分分析将暴露于RDX的植物与对照和干旱植物区分开来。 Z的反射率。 mays杂种在绿色和红色波长下相对于RDX有所增加，而在近红外波长下则有所减少。干旱Z。在绿色，红色和近红外区域，mays反射率较低。 。与RDX一起生长的双色在绿色，红色和NIR波长中反射更多。该光谱及其衍生物将有助于开发特定于炸药的指数，以准确识别受污染土壤中的植物。这项研究首次证明了利用基于空中的高光谱系统对植被进行遥感来描绘大面积地下炸药的潜力。

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