在野火后森林再生的全球数据集
Jinlong Zang1,2,3,4, Feng Qiu5, Yongguang Zhang6,7,8,9
1International Institute for Earth System Sciences, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing University, Nanjing, Jiangsu, 210023, China.
Scientific data
|September 27, 2024
概括
这项研究绘制了野火后全球森林再生的地图,详细说明了森林高度,生物质和叶面积的变化. 这些发现有助于理解火灾后的生态系统恢复和碳动态.
科学领域:
- 森林生态 森林生态
- 遥感 遥感 遥感 遥感
- 气候变化科学 气候变化科学
背景情况:
- 野火造成大量的森林损失和大气排放.
- 森林再生对于生态系统的修复和碳捕获至关重要.
- 现有的数据集缺乏对火灾后森林再生的详细描述.
研究的目的:
- 为了生成森林火灾后森林结构再生的第一个全球地图.
- 量化再生参数,包括森林高度,地面生物量 (AGB),叶面积指数 (LAI) 和光合作用活性辐射 (FPAR) 分数.
- 为森林恢复的空间和时间动态提供见解.
主要方法:
- 利用了多个远程传感数据集.
- 以30米的空间分辨率生成全球地图.
- 在五年间隔 (2000-2020年) 计算的再生增长比率和率.
主要成果:
- 开发了全球森林再生参数的综合数据集.
- 地图化森林高度,AGB,LAI和FPAR在野火后发生的变化.
- 描述了跨空间和时间尺度的再生生长动态.
结论:
- 该研究为评估森林生态平衡提供了关键数据.
- 能够更好地量化干扰后森林碳动态.
- 有助于更好地了解全球森林弹性.
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