Information   Overview Conference Themes Conference History Scientific Tours Press Contacts Venue Visas Scientific Committee Planning Committee Poster Information Hosts Sponsors Supporting Businesses Download Schedule Charles Keeling Tellus Help      Latest Comments · Re: Conference Feedback by Georgii.Alexandrov · Re: Conference Feedback by Peter.Koehler · Re: Conference Feedback by Ankur.Desai · Re: Conference Feedback by guest · Re: Conference Feedback by Steven.Oncley · Re: THE CHANGING CARBON CYCLE by Jose.Navar-Chaidez · Re: PERSISTENCE OF NITROGEN LIMITATION OVER TERRESTRIAL CARBON UPTAKE by Jose.Navar-Chaidez · Re: SPATIAL AND TEMPORAL PATTERNS OF CO2, CH4 AND N2O FLUXES IN THE TERRESTRIAL ECOSY by Georgii.Alexandrov · Re: CLIMATE CHANGE: DESIGNING AN EFFECTIVE RESPONSE by Connie.Uliasz · Re: CLIMATE CHANGE: DESIGNING AN EFFECTIVE RESPONSE by Jonathan.Callahan The comments are owned by the poster. We aren't responsible for their content. No Comments Allowed for Anonymous Viewers, please login Re: The Influence of Soil and Water Management on Carbon Erosion and Burial (Score 1) by Eric.Sundquist on Wednesday, September 28 @ 11:19:28 MDT (User Info) Hi Martin - thanks for your interest.I don't have Peter Raymond's numbers handy, but my recollection is that the hypothesized alkalinity flux trend is smaller than the flux of organic carbon mobilized by erosion.A couple of observations about the alkalinity trend: - the alkalinity measurements used in the trend analysis are USGS measurements that have been through a number of methodological changes over the years.  These changes have been documented, but they complicate the interpretation of observed trends - a likely source of the trend, if real, would be the use of "lime" (carbonate - dolostone and limestone) applied to fields by farmers.  I believe that Peter is looking into this possibility -- there are good data concerning the extent of applications to fields.  This is a bit different from the hypothesized weathering flux, in that it must be discounted by the GHG "cost" of mining it and getting it into the field, and it is less effective as a cumulative sink than an enhancement of silicate weathering. | Parent

The 7th International CO₂ Conference
The Omni Interlocken Resort
September 25th - 30th
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