The site has already been covered by snow, but the car could still drive there, with cautions. We are approaching the end of experiment this year.

         Fig. 1 The road to my experiment site was covered by snow

In the winter, the temperature was assumed to below – 20 ℃. Some equipment like band dendrometer sensors and datalogger could be damaged by that freezing temperature. Thus, we decided to take them back.

               Fig. 2 Photo of B1T1 took at Oct, 18, 2016

Antonio and Guang went to the field with me on October, 18, 2016. We cut the wires of band dendrometer, and collected sensors into bags. Next year, we will use junction boxes and wire connectors to reconnect them.

Fig. 3 the band dendrometer sensors were taken back, leaving metal clamp and spring on the site.

We also unintalled the datalogger. It was not easy, as there were too many wires. Thanks to Antonio, we disconnected the wires without mixing them too much. Those wires were all marked with A, B, C, D …etc. So connection in the next year should be much easier. By the way, we disconnected solar panel and took the batteries back as well.  We protected the wires by tying and covering them with plastic films.

Fig. 4 the datalogger were taken back, and the wires were protected by plastic films

But sap flow probes were left on site, as suggested by a Dynamax consultant. Soil moisture sensors also stayed there. Climate stations will work through the whole winter. Hope that the memory of climate station is huge enough to store climate data of the whole winter.