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Satellite remote sensing-based estimates of biomass production on reclaimed coal mines

机译：基于卫星遥感的再生煤矿生物量产量估算

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Remote sensing methods have been used to evaluate vegetative growth patterns for many applications, though relatively little work has focused on tracking mine reclamation progress. For coal mines in Central Appalachia, reclamation approaches that include production of biofuel feedstocks are increasingly attractive, as these may yield significant post-mining land values and contribute to carbon-neutral energy supplies. To optimize biomass productivity, the influence of reclamation practices on biomass production must be well understood, which necessitates tracking biomass production over long time periods. Satellite-based estimations may offer low-cost alternatives to conventional biomass estimations and, also, the potential to provide critical input for carbon accounting at varied spatial scales. In this paper, experimental biomass production plots on reclaimed mine sites established in Wise County, VA, are used for a comparative study of satellite spectral derivatives, which are evaluated against ground-based biomass estimates. Metrics based on four spectral derivatives, band ratios and spectral transforms were regressed against biomass measured in situ for different species. The results demonstrate that greenness and principal component 2 (PC2) were more efficient than the other spectral derivatives for monitoring the biomass of this reclaimed area. Also, it is shown that Landsat-5 TM has provided promising results for monitoring of the biomass changes occurring from 2008 to 2010 over the study area.
机译：遥感方法已用于评估许多应用的营养生长模式，尽管相对较少的工作集中在跟踪矿山开垦进度上。对于中阿巴拉契亚中部的煤矿，包括生物燃料原料生产在内的填海方法越来越有吸引力，因为这些方法可能会产生大量的开采后土地价值，并有助于碳中和能源的供应。为了优化生物质生产力，必须充分了解开垦实践对生物质生产的影响，这需要长时间跟踪生物质生产。基于卫星的估算可能提供常规生物量估算的低成本替代方案，并且有潜力为变化的空间规模上的碳核算提供关键输入。在本文中，在弗吉尼亚州怀斯县建立的开垦矿场上的实验性生物量生产地块用于卫星光谱导数的比较研究，并根据地面生物量估算值进行了评估。将针对四种物种的原位生物量回归基于四种光谱导数，谱带比和光谱变换的度量。结果表明，绿色度和主要成分2（PC2）比其他光谱衍生物更有效地监测该开垦区的生物量。此外，研究表明，Landsat-5 TM为监测研究区域从2008年到2010年发生的生物量变化提供了令人鼓舞的结果。

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