Paul E Brewer

Forest and agricultural biogeochem, microbial ecology, CH4 - Making sense of the massive heterogeneity in soils - postdoc in the Cadillo-Quiroz lab at ASU

[Paul E Brewer @DirtBrew]

Amazon tree #methane, a great flexible flux chamber, and steady-state gas flux methods, oh my!! A dominant palm dominating emissions! #Mauritia_flexuosa #NOT_non_steady_state_gas_flux #chamber_danger
New today, get it all right here: https://t.co/YUOLypKPAt

[Paul E Brewer @DirtBrew]

Link with open access for next 50 days: https://t.co/Ik8tJWHfIS

[Paul E Brewer @DirtBrew]

Amazon tree #methane, a great flexible flux chamber, and steady-state gas flux methods, oh my!! A dominant palm dominating emissions! #Mauritia_flexuosa #NOT_non_steady_state_gas_flux #chamber_danger
New today, get it all right here: https://t.co/YUOLypKPAt

[Paul E Brewer @DirtBrew]

@RasBuck I miss that place! And you people who frequent it

[Paul E Brewer @DirtBrew]

Feel free to contact myself, @barbajosep @SunithaPangala or Katerina Machacova with questions.

[Paul E Brewer @DirtBrew]

Special Feature on Greenhouse Emissions from Tree Stems (New Phytologist) Submit a ms by June 1st! More info: https://t.co/71iKMKYStA and at https://t.co/oVWxzA8ZUW

[Paul E Brewer @DirtBrew]

@wetland_melinda Looks rad, Melinda! Wish I was there to check it out but I look forward to reading about this!

[Melinda Martinez, PhD @wetland_melinda]

Who cut the cheese, trees or soils?! I'll be at my poster from 3-5pm tomorrow where you can find out! #AGU2019 or #AGU19 ?
B13J-2407 - Identifying Sources of Methane from Standing Dead Trees in Coastal Forested Wetlands

[A. Peyton Smith @apeyton_smith]

Soilpeeps, spread the word! Join our department @SSSA_soils @SoilJudgers @soilecol @ESAbiogeosci @AGUhydrogeophy

[AGU Biogeosciences @AGUbiogeo]

Hey B-section Tweeps, don’t forget!! AGU fall meeting early bird registration deadline is TOMORROW. (Save yourself $100...) #AGU19

[Paul E Brewer @DirtBrew]

@megonigalp will present this work at #AGU19
Abstract: https://t.co/j1f3hn8Qwo

[Paul E Brewer @DirtBrew]

1/3 - Determining the source of #CO2, #CH4, or #N2O emitted by trees (from belowground or created in wood?) is a vexing problem - many tracers (even stable isotopes) are biologically active and heterogeneously distributed. We found that #radon #222Rn is a consistent tracer...

[Paul E Brewer @DirtBrew]

4/3 - Work done at @SmithsonianEnv !!!

[Paul E Brewer @DirtBrew]

3/3 - Hopefully this approach can be used effectively to characterize the patterns of tree vs soil gas contributions in many ecosystems! I'd love to see more about seasonal/diurnal dynamics. A #Rad7 is the only significant expense ($7k?), other methods elements have nominal cost.

[Paul E Brewer @DirtBrew]

2/3 that may disentangle belowground contributions from wood contributions. Night time 222Rn emissions also demonstrated that tree stems emit soil gases continuously, not simply during active transpiration.
Led by @megonigalp, with Karen Knee
https://t.co/qJV0ihaPja

[Paul E Brewer @DirtBrew]

@Luke_Jeffrey @NewPhyt @megonigalp I'm excited this is something you were thinking of, too... at least you weren't about to submit a grant proposal you'd spent weeks drafting?

I hope you can use this method in your system, would be very interesting to see how belowground vs internal CH4 partitions in diff forests

[Paul E Brewer @DirtBrew]

Thanks to @barbajosep @SunithaPangala and Katerina Machacova bringing this to fruition!

[Paul E Brewer @DirtBrew]

Have tree GHG findings you're planning to write up the coming year? Want to submit them to a New Phytologist Special Issue? We're organizing one! "Greenhouse gas emission from tree stems"
Issue description (https://t.co/71iKMKYStA)
Submission guidance (https://t.co/oVWxzA8ZUW)

[Paul E Brewer @DirtBrew]

@Luke_Jeffrey Nice sensor! I'll DM you to follow up about the manifold

[Paul E Brewer @DirtBrew]

2/5 ...environmental controls of gas fluxes. In our upland temperate hardwood forest fluxes exhibited strong dynamics on daily and hourly time frames while seasonal averages varied 2 to 4 fold. Individual stems varied dramatically in CH4 flux... #GHGSymp19

[Paul E Brewer @DirtBrew]

@Luke_Jeffrey I built a Arduino-controlled valve manifold for automation from scratch. Controlled both pnuematics to close chambers and chamber headspace re-circulation to the Los Gatos UGGA. I can share more details on the manifold if you're interested