Field Notes

<--2020-07-07 11:00:00 | 2020-07-28 11:00:00-->
Other sites visited today: Vaira | Tonzi

Tonzi: 2020-07-28 10:00:00 (DOY 210)
Author: Siyan Ma
Others: Joe, Hisashi, Kyoko, Sunny

Summary: Standard fieldwork, dry and hot, litter samples, midday water potential - need new air tank

When: Date: 7/28/2020 , Day: 207 , Watch Time: 10:00 am .

Where: Tonzi/Vaira Ranch

Who: Siyan, Joe, Joeâ€™s family, and Sunny

Weather: clear, sunny

Phenology:

Summary

Swapped memory sticks of Licor-7500A. (Joe)
Checked and downloaded phenocam images and met data from PC at three towers. (Joe)
Read dendrometers
Measured soil moisture
Measure groundwater well and download GlobalWater data (Joeâ€™s family)
Measure midday water potential of oak leaves
Collect grass litter samples

Vaira_Grass Site

Fence: electronic off.
Downloaded Phenocam images. (Joe)
Swapped the memory stick of Licor-7500A. (Joe)
Checked the fans of air temp and relative humidity sensors at Vaira. YES!
Downloaded met data

A screenshot of a cell phone Description automatically generated

Tonzi_Tower Site

Fence: electronic off.
swapped the memory stick of Licor-7500A. (Joe)

A screenshot of a cell phone Description automatically generated

download Phenocam images. Yes!
checked the fans of air temp. and relative humidity sensors on the tower and the floor. YES!
Checked rain gage, make sure not clogged. YES!
Screens of met dataloggers:

A screenshot of a cell phone Description automatically generated

Toniz_Floor Site

Fence: electronic off.
Swapped the memory stick of Licor-7500A.

A screenshot of a cell phone Description automatically generated

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2020-07-28	TZ_road	37.1
2020-07-28	TZ_floor	28.7
2020-07-28	TZ_tower	33.15
2020-07-28	VR_pond	15.46
2020-07-28	VR_well	57.1

mode = both
Moisture Point Probes TZ
Array ( [0] => Tower [1] => Floor_South [2] => Soil_Transect_4 [3] => Soil_Transect_3 [4] => Soil_Transect_2 [5] => Soil_Transect_1 [6] => SoilCO2_West_A [7] => SoilCO2_West_B [8] => SoilCO2_West_C [9] => Floor_West )

Date	DOY	Rep	Depth	Tower	Floor_South	Soil_Transect_4	Soil_Transect_3	Soil_Transect_2	Soil_Transect_1	SoilCO2_West_A	SoilCO2_West_B	SoilCO2_West_C	Floor_West	Avg	Spacial Count	Measurement Count
2020-07-28	210	0	0-15cm	3.6	1.8	2.2	3.1	3.9	0.9	6.8	3.3	0.1
2020-07-28	210	0	15-30cm	11.5	9.7	7.2	13.3	12.4	4.5	7.2	1.1	12.1	5.7
2020-07-28	210	0	30-45cm	14	13.4	10.3	15.9	16.2	13.1	17	16.2	11.5	24.1
2020-07-28	210	0	45-60cm	19.1	3.4	10.5	18.8	28.2	52.6	17.3	24.5	17.6
2020-07-28	210	1	0-15cm	3.6	1.8	2.5	2.2	3.6	0.6	7.4	3.9	0.1
2020-07-28	210	1	15-30cm	11.2	9.7	6.9	13.6	12.1	4.5	6	1.1	12.4	7.2
2020-07-28	210	1	30-45cm	13.4	13.4	10.3	15.9	16.5	13.4	16.5	16.5	11.5	20.1
2020-07-28	210	1	45-60cm	19.3	3.3	11.3	18.8	27.9	13.3	17.9	24.2	17.9
2020-07-28	210	Avg	0-15cm	3.6	1.8	2.35	2.65	3.75	0.75	7.1	3.6	0.1		2.86	9	18
2020-07-28	210	Avg	15-30cm	11.35	9.7	7.05	13.45	12.25	4.5	6.6	1.1	12.25	6.45	8.47	10	20
2020-07-28	210	Avg	30-45cm	13.7	13.4	10.3	15.9	16.35	13.25	16.75	16.35	11.5	22.1	14.96	10	20
2020-07-28	210	Avg	45-60cm	19.2	3.35	10.9	18.8	28.05	32.95	17.6	24.35	17.75		19.22	9	18

mode = both
Moisture Point Probes VR
Array ( [0] => Flux_Tower [1] => Biomass_Cage )

Date	DOY	Rep	Depth	Flux_Tower	Biomass_Cage	Avg	Spacial Count	Measurement Count
2020-07-28	210	0	0-15cm	0.1	0.1
2020-07-28	210	0	15-30cm	8.4	4.2
2020-07-28	210	0	30-45cm	4.2	12.9
2020-07-28	210	0	45-60cm	14.6	16.8
2020-07-28	210	1	0-15cm	0.1	0.6
2020-07-28	210	1	15-30cm	8.1	3.9
2020-07-28	210	1	30-45cm	5	14
2020-07-28	210	1	45-60cm	15	16.8
2020-07-28	210	Avg	0-15cm	0.1	0.35	0.23	2	4
2020-07-28	210	Avg	15-30cm	8.25	4.05	6.15	2	4
2020-07-28	210	Avg	30-45cm	4.6	13.45	9.03	2	4
2020-07-28	210	Avg	45-60cm	14.8	16.8	15.8	2	4

No TZ grass heigth found

No VR grass heigth found

Tree DBH

Date	Tag#	Reading (mm)
2020-07-28	102	3.1
2020-07-28	2	23.0
2020-07-28	245	11.9
2020-07-28	3	15.2
2020-07-28	4	9.0
2020-07-28	6	16.0
2020-07-28	7	19.2
2020-07-28	72	8.4
2020-07-28	79	20.1

Water Potential - mode: raw

Time	Species	Tree	readings (bar)
2020-07-28 13:16:00	OAK	102	-45	-50	-35
2020-07-28 13:16:00	OAK	35	-37	-31	-43
2020-07-28 13:16:00	OAK	92	-40	-34	-33
2020-07-28 13:40:00	PINE	OLD	-17	-18	-17
2020-07-28 13:40:00	PINE	YNG	-5	-4	-3