期刊
FOREST ECOLOGY AND MANAGEMENT
卷 391, 期 -, 页码 349-361出版社
ELSEVIER
DOI: 10.1016/j.foreco.2017.01.009
关键词
Disturbance detection; Landsat; Clear-cuts; Bark beetle outbreak; Pest management
类别
资金
- Slovak Research and Development Agency [APVV-0297-12, APVV-15-0425]
Natural disturbances such as windthrow and bark beetle Ips typographus L outbreak often affect protected areas with non-intervention type of management located in close proximity to managed forest stands. This raises concerns about the migration of the beetle outbreak from non-intervention zones to adjacent managed forests. In this study we analyzed the spatiotemporal dynamics of large-scale disturbances by intervention and non-intervention type of management in the Tatra mountains (Central Europe). We collected a time series of Landsat images from 2003 to 2014, and applied maximum likelihood classification to map the extent of forest, windthrow, clear-cuts, beetle outbreak and fire. Our classified maps achieved high overall accuracies: 0.93 +/- 0.03 <= OA <= 0.96 +/- 0.03. The extent of forest declined over the study period. We found higher rate of beetle induced tree mortality in non-intervention versus intervention zone. Within two growing seasons after the windthrow, beetle infestation occurred in close proximity to uncleared windthrow (
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