Analysis.xlsx

We investigated relationships between belowground growth ring ontogeny, starch content, and aboveground phenology in two southern U.S. tallgrass prairie perennial forb species, <i>Asclepias viridis</i> and <i>Lespedeza stuevei</i>, making monthly excavations for a year. Belowground xylogenesis began when starch reserves were at their seasonal low in the spring as shoots reached maximum height. The highest relative radial growth of the ring occurred concurrently with replenishment of root starch reserves in early summer. Xylogenesis concluded with leaf senescence in late summer and belowground starch reserves near saturation.

本研究针对美国南部高草草原的两种多年生杂类草本植物——绿乳草（Asclepias viridis）与斯图维胡枝子（Lespedeza stuevei），开展了为期一年的月度挖掘采样，探究地下生长轮发生发育、根系淀粉含量与地上物候之间的关联。地下木质发生过程始于春季淀粉储备处于季节低谷的时段，此时植株地上茎秆达到最大高度。生长轮的相对径向生长峰值出现在初夏，与根系淀粉储备的补充进程同步发生。地下木质发生过程于夏末伴随叶片衰老宣告结束，此时地下淀粉储备接近饱和状态。

搜集汇总

背景与挑战

背景概述

该数据集名为'Analysis.xlsx'，发布于2018年，研究了美国南部高草草原两种多年生草本植物（Asclepias viridis和Lespedeza stuevei）的地下生长轮发生、淀粉含量与地上物候的关联。通过一年期月度挖掘，揭示了地下木质化过程与淀粉储备季节性变化的同步性：春季淀粉最低时开始，早夏淀粉补充时生长最快，晚夏叶片衰老时结束。数据集涵盖植物生物学和生态学领域，采用开放获取许可（CC BY 4.0）。