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首页> 外文会议>Proceedings of GlobWetland: Looking at Wetlands from Space >REMOTE SE SENSING OF NSING SPHAGNUM STRESS: A PROX PROXY FOR NEAR Y NEAR-SURFACE WETNESS CONDITIONS I IN NORTHERN N PEATLANDS?
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REMOTE SE SENSING OF NSING SPHAGNUM STRESS: A PROX PROXY FOR NEAR Y NEAR-SURFACE WETNESS CONDITIONS I IN NORTHERN N PEATLANDS?

机译：Ning Sphagnum应力的远程SE感测：北部N草原近I年近地表水状况的代理？

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Remote sensing of near near-surface hydrological conditions within northern peatlands has the potential to provide important large large-scale hydrological information regarding ecological and carbon carbon-balance processes occurring within such systems. The paper details how the spectral properties (400 – 2500 nm) of Sphagnum mosses may provide a suitable proxy for near near-surface peatland hydrological conditions. We investigate the effects of changes in near near-surface and surface moisture upon the spectral cha characteristics of racteristics Sphagnum moss canopies. Laboratory Laboratory-based canopy reflectance data were collected from a number of Sphagnum species, subjected to drying and subsequent rewetting. Several spectral indices developed from the near infra infra-red (NIR) and shortwave infra infra-red (SWIR) liquid water absorption bands and a biophysical index were correlated with measures of near near- surface moisture. E Each species of ach Sphagnum exhibited a clear and well well-defined spectral response to reductions in volumetric moisture content (VMC); reflecting the general water tolerance of each species, and its location in relation to the water table. Airborne imagery were also collected during 2002 for a raised bog located in W. Wales. Details regarding the integration of laboratory and airborne re remote sensing data for mapping near mote surface hydrological conditions using the spectral reflectance characteristics of Sphagnum are discussed.
机译：对北部泥炭地内近地表水文状况的遥感有可能提供有关此类系统内发生的生态和碳-碳平衡过程的重要的大规模大规模水文信息。本文详细介绍了泥炭藓的光谱特性（400 – 2500 nm）如何为近地表泥炭地水文条件提供合适的替代方法。我们调查了近地表水和表层水分的变化对地上植物泥炭藓冠层光谱特征的影响。实验室从许多泥炭藓物种中收集了基于实验室的冠层反射率数据，进行了干燥和随后的重新润湿。由近红外（NIR）和短波红外（SWIR）液体吸水带形成的几个光谱指数和生物物理指数与近地表水分的测量值相关。 E泥炭藓的每个物种对减少体积水分含量（VMC）都表现出清晰明确的光谱响应；反映每个物种的总体耐水性及其相对于地下水位的位置。 2002年期间，还为W. Wales的一个凸起的沼泽收集了机载图像。讨论了有关利用泥炭藓的光谱反射率特征对实验室和机载遥感数据进行整合以绘制近地表水文条件的细节。

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