2020年中国次生林林龄分布数据
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采用多种时间序列变化检测算法,通过堆栈集成模型,构建了2020年中国次生林林龄数据(SFAC)分布图。数据集空间分辨率为30m,采用Geotiff存储格式,空间参考系统采用WGS84投影,空间范围上覆盖中国大陆和台湾,不含南海岛屿。影像数值含义: 1~34代表林龄,年份范围对应为1987年至2020年;36表示林龄大于34(不是特定的像素尺度年龄); 0 表示非森林。
A 2020 secondary forest age class (SFAC) distribution map of China was developed using multiple time-series change detection algorithms and a stacking ensemble model. The dataset has a spatial resolution of 30 m, stored in Geotiff format, with its spatial reference system adopting WGS84 projection. Its spatial coverage includes mainland China and Taiwan, excluding the South China Sea islands. The meanings of the pixel values are as follows: Values 1 to 34 represent forest age, corresponding to the year range from 1987 to 2020; Value 36 indicates that the forest age is greater than 34 (not a specific pixel-scale age); Value 0 denotes non-forest areas.




