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本研究使用Landsat卫星数据来论证哥伦比亚—厄瓜多尔部分边界23年间(1973～1996)土地覆被变化的速度和格局。人类定居给这两个国家带来了大量毁林。变化的卫星检测分析表明,边界哥伦比亚一侧年毁林速度相对高得多。另外,哥伦比亚一侧森林覆被在研究期间几乎损失了43%,而在厄瓜多尔一侧只损失了22%。研究发现,在边界的任何一侧,都不存在单一的毁林驱动因素;但得出结论:哥伦比亚一侧的毁林速度高可能是由于定居压力高、非法古柯种植加剧。卫星图像证明,在厄瓜多尔一侧,毁林格局反映出与石油勘探和开发有关的道路网络。
This study uses Landsat satellite data to demonstrate the speed and pattern of land cover change over part of the border between Colombia and Ecuador over the 23 years (1973-1996). Human settlement brought massive deforestation to both countries. Varying satellite detection analyzes show that deforestation on the side of the border in Colombia is relatively much faster. In addition, forest cover on the Colombian side lost almost 43% during the study period, while losing only 22% on the Ecuadorian side. The study found no single deforestation driver on either side of the border; however, it concluded that high deforestation rates on Colombia’s side could be due to high settlement pressures and increased illicit coca cultivation. Satellite images confirm that on the Ecuadorian side, the deforestation pattern reflects the road network associated with oil exploration and development.