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Detecting of forest afforestation and deforestation in Hainan Jianfengling Forest Park (China) using yearly Landsat time-series images

机译:利用年度Landsat时序图像检测海南尖峰岭森林公园的森林造林和森林砍伐

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The availability of dense time series of Landsat images pro-vides a great chance to reconstruct forest disturbance and change history with high temporal resolution, medium spatial resolution and long period. This proposal aims to apply forest change detection method in Hainan Jianfengling Forest Park using yearly Landsat time-series images. A simple detection method from the dense time series Landsat NDVI images will be used to reconstruct forest change history (afforestation and deforestation). The mapping result showed a large decrease occurred in the extent of closed forest from 1980s to 1990s. From the beginning of the 21st century, we found an increase in forest areas with the implementation of forestry measures such as the prohibition of cutting and sealing in our study area. Our findings provide an effective approach for quickly detecting forest changes in tropical original forest, especially for afforestation and deforestation, and a comprehensive analysis tool for forest resource protection.
机译:Landsat图像的密集时间序列的可用性为重建森林干扰和以高时间分辨率,中等空间分辨率和长期的历史变化提供了很大的机会。本提案旨在利用年度Landsat时序图像在海南尖峰岭森林公园中应用森林变化检测方法。来自密集时间序列Landsat NDVI图像的一种简单检测方法将用于重建森林变化历史(造林和毁林)。测绘结果表明,从1980年代到1990年代,禁林范围发生了很大的减少。从21世纪初开始,随着林业措施的实施,例如研究区域禁止砍伐和封存,我们发现森林面积有所增加。我们的发现为快速检测热带原始森林中的森林变化(尤其是造林和毁林)提供了有效的方法,并为森林资源保护提供了全面的分析工具。

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