Field Notes

<--2020-06-09 11:00:00 | 2020-07-08 08:30:00-->
Other sites visited today: Bouldin Corn | East End | West Pond
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Bouldin Alfalfa: 2020-07-01 13:45:00 (DOY 183)
Author: Daphne Szutu
Others:

Summary: Regular data collection/cleaning, new game cameras from Arable, spectral, veg height, LAI, biomass samples

2020-07-01
Bouldin Alfalfa

I arrived at 13:45 PDT. It was a warm and breezy day. The alfalfa was flowering and tall, although not very dense, with visible litter between the rows. I was able to drive up to the tower. There were many butterflies and bees buzzing about. Some of the fields to our north were mowed and baled.
The wash reservoir was mostly full; I topped it off. I saw two new game cameras on the tower, installed by Arable. One is looking out toward the horizon and one is looking down toward the ground. I cleaned flux and rad sensors.

I downloaded met, camera, USB GHG, and FD data. I cleared both FD chambers after downloading them. I also took spectral, veg height and 1-wand LAI measurements (facing NE). I took 5 clip plot samples.

LI-7500 readings:
CO2 385ppm
H2O 852ppm
T 31.2C
P 100.8kPa
SS 98--> 102 after cleaning
LI7700 readings:
CH4 1.95ppm
RSSI 64-->75 after cleaning

I left at 15:00 PDT.

Next Mowing: 2020-07-06

Veg Height (cm): Tape measure from ground to top of plant
49, 63, 59, 52, 46, 48, 44, 51, 52, 43, 45, 47, 70, 59, 48, 60, 60, 57, 50, 57, avg = 53, stdev = 7.26

2 photos found

20200701BA_insect.jpg ( 2020-07-01 14:02:30 ) Full size: 1440x1920
Insect on sonic spikes