基于高空间分辨率的红树林卫星遥感监测技术进展

Development of mangrove monitoring technology using high spatial-resolution satellite images

卫星遥感技术是红树林生态系统监测的重要手段。文章系统地总结了红树林的光谱特征,给出了目前应用于红树林生态监测的高空间分辨率卫星包括IRS-P6、SPOT-5、IKONOS、OrbView-3、QuickBird的主要技术参数以及它们在红树林遥感监测中的应用程度,叙述了目视解译法、波段组合法、图像分类法、专家分类法、模糊分类法和面向对象分类法等遥感监测技术方法在红树林的生态参数包括类外区分和类内区分、生物量和健康状况等的遥感提取的应用和精度对比情况。另外,对应用高分辨率卫星遥感资料监测红树林的技术发展趋势进行了讨论。

Remote sensing plays a very important role in mangrove monitoring.First,based on systematically summarized mangrove spectral characteristics,this paper reviews methods of mangrove monitoring with leaf area index（LAI）,vegetation index and texture.Second,this paper gives parameters of some satellites that have high spatial resolution and have been working in mangrove monitoring successfully,such as SPOT5,IKONOS,QuickBird,and IRS-P6.Third,the article introduces methods of extracting ecological parameters including distinction in and among populations,biomass and state of health,and compares their accuracy.Finally,this paper briefly discusses the technology development of monitoring mangroves using the high spatial-resolution satellite remote sensing information.