Stream metabolism study of East Fork Creek, Franklin, TN in years 2022-2023

In East Fork Creek, a headwater stream in middle Tennessee, week-long field campaigns were set up each month from May 2022 to May 2023 to collect stream metabolism estimators. In a more extensive field campaign from July 2-5 in 2022, diel signals were observed for temperature, pH, Ca, Mg, and DIC. Gross Primary Productivity (GPP) and Ecosystem Respiration (ER) were calculated based on a Bayesian model using the dissolved oxygen (DO) time series approach.

2022年5月至2023年5月间，田纳西州中部的源头溪流东叉溪（East Fork Creek）每月开展一次为期一周的野外考察，以采集溪流代谢估算参数。2022年7月2日至5日实施了规模更大的野外考察作业，期间观测到温度、酸碱度（pH）、钙（Ca）、镁（Mg）及溶解无机碳（Dissolved Inorganic Carbon，DIC）的昼夜波动信号。研究采用溶解氧（Dissolved Oxygen，DO）时间序列方法，结合贝叶斯模型计算得到总初级生产力（Gross Primary Productivity，GPP）与生态系统呼吸（Ecosystem Respiration，ER）。