Above and below ground phenology for the Niwot Ridge sensor node array, 2021 - 2022.

The below-ground growing season often extends beyond the above-ground growing season in tundra ecosystems. However, we do not yet know where and when this occurs and whether these phenological asynchronies are driven by variation in local vegetation communities or by spatial variation in microclimate. We deployed root in-growth cores in 4 locations in Niwot Ridge’s sensor node array as part of a multi-site study of above- and below-ground tundra phenology.

在苔原生态系统中，地下生长期往往长于地上生长期。但目前我们仍不清楚该现象的发生位置与时间，也无法确定这类物候异步性是由本地植被群落的差异所驱动，还是源于微气候的空间变异。作为一项针对苔原地上与地下物候的多站点研究的组成部分，我们在尼沃特岭（Niwot Ridge）的传感器节点阵列的4个点位布设了根生长芯（root in-growth cores）。