Field Notes

Twitchell Alfalfa: 2016-08-31 13:10:00 (DOY 244)
Author: Joe Verfaillie
Others: Elke

Summary: Standard data collection, swapped 7500, collected FD data.

Twitchell Alfalfa
2016-08-31

I arrived at 13:10 with Elke. It was clear, sunny and warm. There was water in the ditches both north and south of the field. They had mowed the edges of the field to the south.

There are squirrel holes around the soil sensors. We put moth balls in the three biggest ones.

We swapped the 7500
sn 75H-2514 off: 370.3ppm CO2, 664.5mmol/m3 H2O, 24.4C, 101.1kPa, 97.7SS
sn 75H-2182 on: 396.5ppm CO2, 642.2mmol/m3 H2O, 26.3C, 101.0kPa, 86.19SS

I collected the data from the forced diffusion chamber. Again I had problems cycling the power on it. Almost seems like a bad connection at the connector on top of the chamber.

Elke did soil respiration, spectral measurement, veg height and we did clip plots.

1 photos found

TA_autocam_20160831_1215.jpg ( 2016-08-31 12:15:02 ) Full size: 1920x1440
Elke on site