出版社：Institute of Landscape Ecology of the Slovak Academy of Sciences
摘要：The forest disturbances represent an important factor, which significantly influences the character of forest ecosystem. The aim of this study was to assess the spectral response of two types of forest disturbance using both thermal and optical remote sensing in the central part of Šumava National Park. The first disturbance type includes the stands affected by bark beetle (Ips typographus) outbreak during the last 20 years. The clear cut areas represent the second type of disturbance. When assessing spectral response of deforested areas using spectral indices it turned out, that clear cut areas show more significant change compared to the values of original living forest than decayed forest. Moreover, the change dynamic of clear cut areas and decayed forest is quite different: while the change was gradual in the case of decayed forests, the change was sudden in the case of clear cut areas. It is likely caused by the fact, that the original herbal vegetation is partly removed or destroyed in the case of clear cut areas. The results of assessment of temperature changes as a consequence of deforestation show, that temperature increased during summer days with radiation weather on the both clear cut and decayed forest areas. When comparing both types of deforestation, clear cut areas show significant higher increase of temperatures than decayed forests.
