Gas sampling and CO2 flux measurement

April 4, 2008

Foggy morning and sunny and windy afternoon

Collected gas samples and measured CO2 flux

LWB an LWBH site have been flooded recently.

A datalogger in LWB didn't work at all. Need to change to new one.

With Seth

Gas sampling and CO2 flux measurement

March 21, 2008

Still very cold and windy, oh lovely Iowa!

Collected gas samples and measured CO2 flux in LWB, LWBH, JWG, JWGH.

Downloaded soil temp/moisture/precipitation data in RCF, RCG, RWG, RWB.

With Jess

Gas sampling and CO2 flux measurement

March 7 and 10, 2008

Collected gas samples and measured CO2 flux in JWG, JWGH, LWB, LWBH.


With Seth

Groundwater sampling for dissolved N2O

March 5, 2008

Collected groundwater samples in the north and south of Ron Risdal farm.

With Jess

Gas sampling and CO2 flux measurement

Feb. 22, 2008

Collected gas samples and measured CO2 flux in JWG, JWGH, LWB, LWBH.


With Seth

Gas sampling and CO2 flux measurement

Feb. 08, 2008

Collected gas samples and measured CO2 flux at LWB, LWBH, JWG, JWGH.

Took a nap between samplings:)

with Seth

Groundwater sampling for dissolved N2O gas

Jan. 30, 2008

Groundwater sampling in north and south of Ron Risdal site

With Jess

Gas sampling and CO2 flux measurement

Jan. 25, 2008

Collected gas samples and measure CO2 flux LWB, LWBH, JWG, JWGH.

With Jess

Gas sampling and CO2 flux measurement

Jan. 10, 2008

Collected gas samples and measured CO2 flux in JWG, JWGH, LWB, and LWBH

With Seth

Gas sampling

December 31, 2007

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

With Leigh Ann

Gas sampling and CO2 flux measurement

December 19, 2007

Collected gas samples all sites but LWG and JWGH.
Measured CO2 flux in LWB,LWBH, JWG, and JWGH.

With Kris and Seth

Ground water sampling to analyse dissolved N2O

December 18, 2007

Collected groundwater samples in North and Sout Risdal sites.

With Jessi

Gas sampling and CO2 flux measurement

December 12, 2007

Collected gas samples in LWB, LWG, RCF, RCG, RWG, RWB, JWG, and JWGH.

Measured CO2 flux in JWG, JWGH.

With Seth and Bryan

Gas sampling and CO2 flux measurement

December 5, 2007

Collected gas samples in all sites but JWG,JWGH, JWB, LWG.
Measured CO2 flux in JWG, JWGH, LWB, LWBH.

With Leigh Ann and Eric

Harvesting trees in riparian buffers

November 27, 28, 2007

Cut trees (shrub 25, green ash 18, and silver mapel 21) in Lonnie Strum site.

Randomly selected 5 shrub, 3 green ash and 3 silver maple for biomass measurement.

Weighed the sample trees and shrubs.

Collected wood samples for determining moisture contents, carbon and nitrogen.


- With Leigh Ann, Kris, Bryan, Jack, and Seth

Gas sampling, CO2 flux measurement and harvesting grasses

November 19, 2007

Collected gas samples in JWG, JWB and JWGH.

Measured CO2 flux in JWG and JWGH.

Collected soil and grasses samples in JWGH.

Harvested grasses in JWGH.

With Jess and Bryan

Gas sampling and CO2 flux measurement

November 13, 2007

Collected gas samples all sites but JWGH.

Measured CO2 flux in LWB and LWBH.

With Seth and Bryan

Gas sampling and CO2 flux measurement

October 9 and 10, 2007

Collected gas samples at all sites but JWG.
Measured CO2 flux at LWBH.

With Seth and Eric

Gas sampling and CO2 flux measurement

September 25, 2007

Collected gas samples at all sites but LWGH.
Measured CO2 flux in JWG and JWGH.
Took out anchors, a datalogger and and 5 poly bags from crop field.


With Bryan and Seth

Gas sampling, CO2 flux measurement and groundwater sampling

September 18, 20 and 21

Collcted gas samples at all sites but LWG and JWGH.
Measured CO2 flux in LWG and LWGH.
Collected groundwater samples in North and South R. Risdal site.

With Nathan, Jess, Seth and Bryan