Tundra plant above-ground biomass and shrub dominance mapped across the North Slope of Alaska
Tundra plant above-ground biomass and shrub dominance mapped across the North Slope of Alaska
复制标题
DOI：
10.1088/1748-9326/aaaa9a
复制
发表时间：
2018-03-01
影响因子：
6.7
通讯作者：
Goetz, Scott J.
中科院分区：
文献类型：
--
作者：
Berner, Logan T.;Jantz, Patrick;Goetz, Scott J.
由于最近的气候变暖，北极苔原正变得更加绿色和灌木丛生。这正在影响气候反馈和野生动物，但苔原生态系统中植物生物量的空间分布是不确定的。在这项研究中，我们通过将28个野外站点的生物量收获与30米分辨率的Landsat卫星图像联系起来，绘制了阿拉斯加北坡的植物和灌木地上生物量（AGB; kgm(-2)）和灌木优势度（%；灌木AGB/植物AGB）。我们首先开发了回归模型(p
Arctic tundra is becoming greener and shrubbier due to recent warming. This is impacting climate feedbacks and wildlife, yet the spatial distribution of plant biomass in tundra ecosystems is uncertain. In this study, we mapped plant and shrub above-ground biomass (AGB; kgm(-2)) and shrub dominance (%; shrub AGB/plant AGB) across the North Slope of Alaska by linking biomass harvests at 28 field sites with 30 m resolution Landsat satellite imagery. We first developed regression models (p