Nitrogen fixation and respiration potential of conifer logs at Andrews Experimental Forest

<section><para>These data provide a time series of changes in nitrogen fixation rates, and respiration rates for four common PNW species. The purpose is to understand when these rates reach a maximum.</para></section>

本数据集涵盖四种太平洋西北地区（Pacific Northwest，PNW）常见物种的固氮速率与呼吸速率的时间序列变化数据，旨在探明上述两类速率达到峰值的时刻。