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

利用GeoEye-1高分辨率卫星数据和SPOT HRG-2 10 m分辨率卫星数据制作的土地覆盖分类图，揭示了地震前后仙台平原及其周边地区多尺度景观变化特征。其结果是，沿海地区的大部分森林沿着已经倒塌，大部分稻田也已成为无法耕种，由于该地区周围的广泛浸泡。此外，增加景观破碎化，以及更异质分布格局和周围地区也显示。另外，还确定了残存森林斑块的分布面积和空间格局等。在此基础上，将残存植被区域作为热点区域进行检测，将成为重要的基础信息，对当地的自然更新和保护具有重要意义。

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.