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首页> 外文会议>International Symposium on Remote Sensing of Environment >The use of satellite image analysis in long-term monitoring of the effects of water extraction from a coastal subtropical wetland.
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The use of satellite image analysis in long-term monitoring of the effects of water extraction from a coastal subtropical wetland.

机译：卫星图像分析在沿海亚热带湿地水提取的长期监测中的长期监测。

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This paper concerns the use of remote sensing as a tool for monitoring the health of a natural, remote, coastal, groundwater-dependent wetland on a large subtropical sandy island. Monitoring was aimed at detecting any effects of extraction of groundwater on vegetation. The Normalised Difference Vegetation Index (NDVI) has been used annually since 1984. Two remote methods were used: (i) the proportional representation of three stratified activity bands over the whole area, and (ii) the average NDVI at a range of discrete sites. The results were compared with prevailing environmental conditions, groundwater levels, and vegetation measurements. The duration of monitoring presented significant technical challenges, as has the nature of the feature being monitored. The hypothesis that water logging restricts vegetation activity and growth, and hence NDVI, was supported. The NDVI data were not easy to interpret, and both methods were found useful. The interplay between on-ground and remote measurements proved vital.
机译：本文涉及使用遥感作为监测天然，遥远，地下水依赖湿地的健康的工具，在大型亚热带沙滩上。监测旨在检测地下水提取地下水对植被的任何影响。自1984年以来每年使用归一化差异植被指数（NDVI）。使用了两种远程方法：（i）整个区域的三个分层活动带的比例表示，（ii）在一系列离散位点处的平均NDVI 。将结果与普遍的环境条件，地下水位和植被测量进行比较。监测的持续时间提出了显着的技术挑战，与正在监控的特征的性质一样。支持水测井限制植被活性和生长的假设，并因此得到了支持。 NDVI数据不容易解释，并且发现这两种方法都有用。在地面和远程测量之间的相互作用证明了至关重要。

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