Fifteen Years of Land Cover Change in Oregon: A Case Study of Climactic Impacts, Disturbance, and Other Potential Drivers
Datum
2020-02-27
Autor:innen
Zeitschriftentitel
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Verlag
University of Oregon
Zusammenfassung
The national land cover data has covered the past 15 years. Land cover types of Oregon were reclassified into seven categories and assigned with different codes. The trend of each land cover type was calculated. A new coding system was applied to study the temporal and spatial distribution of the shifts between different ecosystems. Two case studies were introduced to analyze the tree cover gain and loss on different aspects in either fire burnt and unburnt areas. Lastly, the observed changing trends of tree cover extent in Oregon were discussed and partially explained by other related researches. The methodology revealed that tree cover loss on public land had exceeded the gain significantly. Tree cover gain on dry and hot south-facing slopes was detected in the unburnt study site. Surprisingly, the fire damage and severity were quantified accurately by the applied method.
Beschreibung
Schlagwörter
Climate change, Ecosystem, Fire, Forest expansion, Land cover change, NLCD