Field Notes

<--2004-01-23 10:00:00 | 2004-03-04 10:00:00-->
Other sites visited today: Vaira

Tonzi: 2004-01-30 00:00:00 (DOY 30)
Author: LiuKang Xu
Others: Jianwu

Summary: Standard fieldwork, Floor and soil co2 losing data due to lower solar power, swapped w24 co2 probe

When: Jan 30 2004
Where: Tonzi Ranch
Who: Liukang Xu, Jianwu Tang
Weather: just after heavy rain, soil almost saturated. Grass grows very slow, because of frequent frost in January.

Tonzi site: Tower EC system was running great. PV reading 12.5, 4.2. download the data

Floor EC, system was running, missing lot of data, looks like power shortage during d013-021. PV reading was 12.0, 5.1 and 2.1. replaced licor 0042 with 0073.

Moisture reading

Jianwuâ€™s notes:
Soil respiration measured by the chamber is about 1 micro mol m-2s-1.
Replace w24 CO2 probe by a re-calibrated sensor. The readings in the open are: 2750, 6660, 6100, 10500ppm, and under trees are 2040, 6640, 15800, 15600 ppm with respect to 2, 8, 16, and 24cm depth. Download data. There are some missing data due to insufficient power supply by solar panels caused by continuous cloudy days.

Field Data

No tank data

No TZ Well data found

No TZ Moisture Point data found

No VR Moisture Point data found

No TZ grass heigth found

No VR grass heigth found

No TZ Tree DBH found

No water potential data found

No TZ Grass Biomass data found

No TZ OakLeaves Biomass data found

No TZ PineNeedles Biomass data found