Groundwater sampling for dissolved N2O gas

August 16, 2007

Collected groundwater samples in North and South Ron Risdal sites.

With Jess.

Gas sampling and soil CO2 flux monitoring

July 14, 2007

Collected gas samples in RWG, RWB, RCG and RCF.
Measured soil CO2 flux in JWG and JWGH.

with Leigh Ann


July 15, 2007

Collected gas samples in LWB, LWBH, LWG, JWB, JWG and JWGH

with Eric

Gas sampling and soil CO2 flux monitoring

August 9, 2007

Collected gas samples in LWB and LWBH.

Measured CO2 flux in LWB, LWBH, JWG, and JWGH.

With Rebecca

Gas sampling and fix a datalogger in JWG

July 08, 2007

Collected gas samples in RCF, RCG, RWB, RWG, JWB, JWG and JWG2.

Fixed a datalogger in JWG.


With Leigh Ann and Rebecca

Gas sampling and install new sites

August 1, 2007

Collected gas samples in LWG and LWB.

Installed new 5 anchors (20cm and 5cm) in LWG2 and LWB2.

Installed new dataloggers (with soil moisture and temperatures) in LWG2 and LWB2 sites.

With Rebecca and Eric

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