When: Date: 8/2/2009 , Day: 214 , Watch Time: 5:00 .
Where: Tonzi/Vaira Ranch
Who: Siyan
Weather: hot, nice breeze
Phenology: yellow grass, green oak leaves

Tonzi
A-ci	Oak siblings under #92
Vaira:
Collect standing litter within 400 cm2	Soil under litter layer looks like small.

Summary

1. Pre-dawn leaf water potential: oak leaf= -30 bar; pin needle=-13 bar.
2. A-Ci curves for oak and gray pine
3. check and download data at Tower, Floor, and Vaira
4. Didn’t calibrate Li-800 in the field because bump was dead.
5. collected samples of oak leaves and pin needles
6. dendrometers
7. soil moisture
8. groundwater well:

Date	DOY	Location	Depth from the black thing (feet)
8/2/2009	214	Floor	27.90
		Tower	32.46
		roadside	36.87

Vaira_Grass Site

1. Fence and gate power: 12 (but not on) v.
2. Panel and Batteries: 13.5 v; 10.1 amps; 2.5 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

1. downloading data
2. Check the fans of air temp. and relative humidity sensors at Vaira. YES!
3. Check MD-9 system connections YES!
4. Check CR23X with two multiplexers

1. Check levels of Radiation sensors, clear up surfaces.YES!
2. Check rain gage, make sure not clogged. YES!
3. Closed gate and set up fence. YES!

Tonzi_Tower Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 13.4 v; 0.0 amps; 4.8 amps.
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

1. downloading data YES!
2. check the fans of air temp. and relative humidity sensors on the tower and the floor. YES!
3. Check rain gage, make sure not clogged. YES!
4. Check calibration cylinders;

CO₂ 500 psig; flow 20 psi; 431.25 ppm.
N₂ 500 psig; flow 20 psi.
Manually calibrate Li-800. Following Ted’s instruction: H:\IoneSavanna_2004\Tower_2004\CO2Profile\LI800_Calibration_Procedure_2Nov04.txt
Is the pump running‌ No. Pump was dead. I took it back to lab.

1. close gate and set up fence. YES!

Toniz_Floor Site

1. Fence and gate power: 12 v.
2. Panel and Batteries: 12.3 v; 1.5 amps; 1.9 amps. (about 7:00 am local time)
3. Reading from Gillsonic screen before downloading data. (The value of H₂O and CO₂ should be in the range of 0 – 5 v.)

1. downloading data YES!
2. Check MD-9 system connections YES!

CR23X3 – floor-Met


CR23X5 – soil CO₂ profile
CR23X6 – tower-Met

CR10X2 – floor-Met

1. Soil CO₂ profile: no power when I got there. I unplug and re-plug fuses, then the system back to work.

Reading from datalogger

Reading from panels of analyzers

depth	Open	order	depth	Tree	order
2cm (1%)	440	1	2cm (1%)	710	1
4cm	530	2	4cm	770	4
8cm	820	3	8cm	1460	2
16cm	820	4	16cm	3440	3

1. Close gate and set up fence. YES!

tonzi	7931AFE	402165	574B4B	402FF3	574632	7A432E	7A3C6E	7A3B40	7A4AAA
8/2/2009	214
	SM
0-15	6.5	4.2	8.6	0.6	6.2	3.9	7.4	2.7	0.4
15-30	13.3	12.1	12.7	11.2	7.2	5.4	13.0	13.0	4.8
30-45	17.6	11.5	12.6	14.3	3.1	9.8	15.4	16.8	13.7
45-60	14.2	5.3	14.8	12.5	19.6	10.7	15.0	23.1	10.2
	A6D882B	A3D04E8	A6D72F5
0-15	6.5	11.1	3.0
15-30	6.6	8.1	12.1
30-45	16.5	16.8	12.9
45-60	17.6	20.0	4.2
vaira	57318a	7933dee
0-15	1.4	2.9
15-30	4.8	7.7
30-45	8.4	12.9
45-60	17.6	19.2

Tonzi
Dendrometer
Date	Day	Tag #	Reading (mm)
8/2/2009	214	72	4.6
		79	0.3
		102	10.3
		245	7.2
		250	15.3	(reset to 10.5 on May 7, 2009)
		1	17.5
		2	7.6
		3	13.9
		4	3.5
		5	10.9
		7	11.5	133
		8	14.1	11828
		71	X
		77	X	‌
		78	X	‌
		248	X	broken
		255	X	‌
		‌252‌	X	‌
		6	X

Notes: “X” means not working any more.
Dendrometers installed by Gretchen group