Multi-scale evaluation from a perspective of landscape ecology on ecosystem impact due to massive disturbance

基于高分辨率卫星数据GeoEye-1和10m分辨率卫星数据SPOT HRG-2生成的土地覆盖分类图，揭示了地震前后仙台平原地区及周边地区多尺度的景观变化。结果是，沿海地区的大部分森林已经倒塌，由于该地区周围的广泛浸泡，大多数稻田也变得无法耕种。此外，该地区及其周围的景观破碎化程度也有所增加，分布格局也更加不均匀。此外，还确定了残留林斑块的分布面积和空间格局。基于这些结果，探测到的植被残留区作为热点将是重要的基础信息，对当地的自然更新和保护将起到至关重要的作用。

Based on the land cover classification map created from high resolution satellite data GeoEye-1 and 10 meter resolution satellite data SPOT HRG-2, multi-scale landscape change in and around Sendai plain region before and after earthquake has been revealed in this research. As the results, most forest along the coast area has collapsed and most paddy filed also has become uncultivatable due to the widespread immersion around the region. Moreover, increased landscape fragmentation as well as a more heterogeneous distribution pattern in and around the area have also revealed. Otherwise, such as the distribution area and spatial pattern of the remnant forest patches has been confirmed. Based on these results, the detected remnant vegetated areas as hot-spots will be important basic information and will play an essential role for the local natural regeneration and conservation.