Field Notes

<--2014-11-11 11:05:00 | 2014-12-10 11:15:00-->
Other sites visited today: Sherman Island | Mayberry | Twitchell Rice | East End | West Pond
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Twitchell Alfalfa: 2014-11-25 15:30:00 (DOY 329)
Author: Patty Oikawa
Others: Paul Oikawa

Summary: Muddy road. Standard data collection.

Paul and I arrived at 3:30pm. The road was too muddy so we had to trek in. The soils looked generally wetter than normal--probably due to recent rains. There were hundreds of geese flying above and cranes-Paul got some good photos. I downloaded data, took soil respiration, spectral and veg height. I forgot clippers in the car and it was getting dark so I failed to do clip plots. I’m not sure how good the spectral will be b/c it was beginning to get dark…Veg was not high enough for LAI. I forgot to write down 7500 readings but everything looked good.

Soil respiration was on average 5 umol m-2 s-1. I stopped the run early by accident on collar 4. I also measured collar 2 first by accident, then collar 1, 3, 4, 5, 6.

Veg Height (cm): Tape measure from ground to top of plant
30, 12, 25, 13, 26, 45, 20, 24, 20, 29, 26, 12, 30, 25, 35, 32, 5, 15, 25, 30, avg = 24, stdev = 9.33

0 photos found

Graphs display:
7 sets found

Can't check TA_met
11 TA_met graphs found

Explore the graph:Alfalfa Temperatures in a new window

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Can't check TA_rad
3 TA_rad graphs found

Explore the graph:Alfalfa Radiation in a new window

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Can't check TA_flux
5 TA_flux graphs found

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Can't check TA_soilco2
7 TA_soilco2 graphs found

Explore the graph:Set A Soil CO2 in a new window

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No data found for TA_arable.
1 TA_cam graphs found

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Can't check TATWBABCSB_cam