SSHCZO -- Sap Flow -- Garner Run Sap Flow Data -- Garner Run -- (2016-2018)

Measurement of sap flux in mature oak trees at the CZO Garner Run catchment in Rothrock State Forest during the entire year. Motivation for study is to monitor actual water usage of trees in order to understand water flux rates throughout the water catchment. The tree ID numbers are 3158, 144, 3164, and 180. Additionally, the data helps to understand the soil, plant, atmosphere continuum (SPAC) at the CZO. Measurements are made using four Dynamax Thermal Dissipation sensor (TDP) with 30 millimeter probes. These are connected to a Campbell Scientific CR1000 data logger that are manually downloaded monthly. Data collected using paired temperature probes installed in trees and insulated. In each tree one probe produces a small amount of heat, the other probe measures the ambient temperature of the sap. The greater the sap flux in a tree the greater the voltage difference in the probes. Date Range Comments: Data are manually downloaded; End date is not fixed本数据集记录了罗斯特罗克州立森林（Rothrock State Forest）内CZO加纳溪流域全年成熟栎树的树液流量测量数据。本研究的核心动机为监测树木实际耗水量，以解析整个流域的水通量速率。本次测量涉及的树木编号为3158、144、3164及180。此外，该数据集可用于理解CZO区域的土壤-植物-大气连续体（Soil-Plant-Atmosphere Continuum, SPAC）。 测量采用4台搭载30毫米探针的Dynamax热消散传感器（Thermal Dissipation Probe, TDP），这些传感器连接至坎贝尔科学（Campbell Scientific）CR1000数据采集器，数据需每月手动下载。 数据通过安装于树木内部并经绝缘处理的配对温度探针采集：每棵树中，一枚探针会产生微量热量，另一枚探针用于测量树液的环境温度；树木的树液流量越大，探针间的电压差值也就越高。 数据日期范围说明：数据为手动下载获取，结束日期未固定。