Field Notes

<--2013-06-19 09:00:00 | 2013-07-11 09:10:00-->
Other sites visited today: Tonzi | Vaira
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Tonzi: 2013-06-19 09:30:00 (DOY 170)
Author: Joe Verfaillie
Others: Siyan, Martin, Taichi

Summary: Standard fieldwork, data collection, moved tram

Tonzi
2013-06-19

I arrived about 9:30 with Siyan, Martin and Taichi. It was clear, sunny and mild (for summer) with a nice breeze. The grass is really yellow and dead, no flowers now. The trees look good. Tonzis pond is as low as I have ever seen it I think.

We moved the tram from the cluster up on the hill southwest of the tower to the cluster west of the soil CO2 site. When we arrived the tram had stopped due to a derail near the far end of the track. The move went very well and we saw the tram run one and a half times at the new location before we left. The connection to the tower computer was working and downloaded data from the first run.

Siyan did the standard fieldwork plus midday water potential.

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2013-06-19	TZ_floor	28.9
2013-06-19	TZ_road	37.3
2013-06-19	TZ_tower	33.2

No TZ Moisture Point data found

No VR Moisture Point data found

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2013-06-19	1	25
2013-06-19	102	20.1
2013-06-19	2	18.2
2013-06-19	245	13.9
2013-06-19	3	21.4
2013-06-19	4	4
2013-06-19	5	24.5
2013-06-19	7	18.2
2013-06-19	72	15.5
2013-06-19	79	17.4
2013-06-19	8	9.1

Water Potential - mode: raw

Time	Species	Tree	readings (bar)
2013-06-19 12:16:00	OAK	102	-40	-15	-35	-27
2013-06-19 12:16:00	OAK	35	-35	-39	-36	-20
2013-06-19 12:16:00	OAK	92	-15	-28	-32
2013-06-19 12:16:00	PINE	OLD	-15	-20	-17
2013-06-19 12:16:00	PINE	YNG	-22	-12	-3.5	-9.5