Soil chemical elements and ground-surface hydrothermal conditions

Wujiaqu2021_Xray.csv: An Olympus Vanta handheld X-ray fluorescence (XRF) spectrometer was used to monitor the internal and external data at the PPP and collect the soil element concentration data in different positions on the PPP panels, on every 10 rows of panels, and at different orientations inside and outside the PPP. Wujiaqu2021_TDR.csv: The temperature and humidity of the soil ground surface layer were monitored using an Acclima Sensor Reader Kit (SDI-12).Wujiaqu2021_Xray.csv：使用奥林巴斯Vanta（Olympus Vanta）手持式X射线荧光（X-ray fluorescence, XRF）光谱仪，对PPP区域的内外侧开展监测，采集PPP面板不同位置、每10排面板布设区域以及PPP区域内外不同朝向处的土壤元素浓度数据。 Wujiaqu2021_TDR.csv：采用Acclima传感器读取套件（SDI-12协议），对土壤地表层的温度与湿度进行监测。