Gas sampling

July 31, 2007

Collected gas samples all sites but LWB and LWG.

With Eric and Rebecca

Intact soil core sampling and N mineralization experiment

July 30, 2007

Collected intact soil cores in all sites.
Collected the buried soil bags from RWG, RWB, RCG and RCF.
Newly buried soil bags to RWG, RWB, RCG and RCF.
Measure soil moisture and extracted inorganic-N in the lab


With Eric




Fig. The most delicious bread in the world.

Groundwater sampling for dissolved N2O gas

July 19, 2007

Collected groundwater samples from North and South Ron Risdal sites.

With Jess and Hiwati

24hr gas sampling in riparian buffers and a crop field

July 16-17, 2007

Collected gas samples every 3hr in RWG, RWB, RCG and RCF from 10:00 July 16, 2007 to 7:00 July 17, 2007.


With Leigh Ann, Keegan, Kris, Eric and Rebecca

Gas sampling

July 10, 2007

Collected gas samples in all sites.

with Rebecca and Eric.

Gas sampling

July 05, 2007

Collected gas samples in RWG, RWB, RCG, and RCF.



with Rebecca and Jess

Groundwater sampling for dissolved N2O gas

June 19, 2007

Collected groundwater samples in Ron Risdal site.

With Jessi


How to collect groundwater for analyzing dissolved N2O?

Gas sampling

June 15, 2007

Collected gas sample in all sites.

With Eric and Jessica

Soil sampling and changed a soil moisture sensor

June 12, 2007

Collected 10cm depth intact soil core samples from all sites.

Collected the buried bags and buried new soil bags in RWG, RWB,RCG, and RCF.

Extracted inorganic-N with 2M KCl solution in the lab and filterated it.

Changed the damaged soil moisture sensor to new one in RWB.


With Eric

Gas sampling and install a data logger in crop field

June 8, 2007

Collected gas samples in all sites.

Installed a datalogger with a soil moisture sensor and a soil temperature sensor.

The soil moisture sensor in Ron Risdal forest buffer site was damaged and is needed to change new one.

With Jessi and Eric

Gas sampling

June 1, 2007

Collected gas samples in Ron Risdal sites (Crop field, warm season and cool season grass filter and forest buffer).


With Coral and Leigh Ann

Groundwater sampling for dissolved N2O gas

May 31, 2007

Collected groundwater in Strum and Risdal sites.

With Jessica.

Gas sampling

May 25, 2007

Collected gas samples at all sites.


With Coral and Eric


How to collect gas sample on soil surface?

Gas sampling

May 18, 2007

Collected gas samples at all sites.

HOBO datalogger in LWB was dead. New batteries are need.


With Jessi and Coral



Forest buffer in John Risdal site


Warm season grass filter in John Risdal site

Gas sampling

May 10, 2007

Collected samples in all sites.


With Eric and Nathan

Gas sampling

May 1, 2007

Collected samples in all sites.


With Lindsey and Phil

Ground water sampling

April 17, 2006

Collected groundwater samples in Ron Risdal North and South sites.


With Jessica.

Gas sampling

April 13, 2007

Collected gas samples in all sites.

With Phil and Lindsey

Gas sampling

April 5, 2007

Collected gas samples in all sites.

Soil moisture meter was out of order, so we could not measure soil moisture in RCF.





With Lindsey, Phil and Bryan

Gas sampling

March 29, 2007

Collected gas samples in all sites.

With Phil, Bryan and Lindsey