[Terrapreta] A Summary of Discussions & Future Direction

[Nat Tuivavalagi]

My thanks to all who have been sharing their data, views, experiences,
readings, comments, etc.

 

It seems that we might have covered quite a bit of ground.  I wonder whether
this list can access some funding to get someone to make a review and
summary of our discussions at some point in time - and also give some
reflection on possible, useful directions of future discussions. 

 

Will such an exercise be useful?  Your comments will be appreciated.

 

Cheers

Nat

 

  _____  

From: terrapreta-bounces at bioenergylists.org
[mailto:terrapreta-bounces at bioenergylists.org] On Behalf Of Sean K. Barry
Sent: Saturday, September 22, 2007 5:04 PM
To: bhans; terrapreta
Subject: Re: [Terrapreta] Fw: CO2 rising

 

Hi Brian,

 

David Yarrow and Lou Gold disagreed with you and questioned whether this was
true.  So have others.  What grasslands are on the Equator?  It seems to me,
that there is far more land area NOT on or near the Equator than there is
north or south of the Equatorial regions.  It seems to me, that there are
more mountainous areas NOT in the Equatorial region.  Do you think, to
generalize, that there are more Equatorial forests, than in other places?
Do you think (no, strike that, do you feel) that in general, more forests,
with big tall trees, sort of of float above the ground and like get
nutrients from the litter on top of the ground or from the "amazing aerial
fertilizer"?  Do more forests grow near or on rocky mountains than on flat
ground?  Is 9.5 a bigger number than 4.7?  Are you a rocket scientist?

 

SKB

----- Original Message ----- 

From: Brian Hans <mailto:bhans at earthmimic.com>  

To: Terrapreta at bioenergylists.org 

Sent: Friday, September 21, 2007 10:53 PM

Subject: Re: [Terrapreta] Fw: CO2 rising

 

http://www.uwex.edu/wgnhs/earlyv.htm      <----- 1854-1890's.

http://www.geology.iastate.edu/gccourse/chem/carbon/images/carboncontent1.gi
f

 

Who said more carbon in grasslands than forests?

 

I will repeat myself; Forests primarily hold carbon above ground. Prairies
and other grasslands and ag primarily hold carbon below ground. And as you
move north/south, that generalization becomes less true because soil biota
doesnt have the timeframe to digest because of temp. The data that I linked
shows that relationship. This isnt rocketscience...

 

Brian

 

 



"Sean K. Barry" <sean.barry at juno.com> wrote:

Hi Brian,

 

I might be mistaken, but wasn't Minnesota and Wisconsin covered by a boreal
forest before humans cut it all down and Swedes/Germans began farming it.
Is it true that the forests disappeared by themselves?  I didn't think so.

 

I would like to see the papers that say there is more carbon in grassland
than in forests?  All I have ever read before was that forest contain huge
amounts of carbon in the biomass and in the soil.

 

SKB

----- Original Message ----- 

From: Brian Hans <mailto:bhans at earthmimic.com>  

To: Terrapreta at bioenergylists.org 

Sent: Friday, September 21, 2007 5:59 PM

Subject: Re: [Terrapreta] Fw: CO2 rising

 

? 

So...prairies dont hold their biomass underground and forest generally dont
hold their biomass above ground? You got something to back that hypothesis
up? I offered my data...where is yours?

 

And are you saying that prairies and savannas are NOT an succession
ecosystem? You think prairies are just waiting for forests to cover them? If
this is your position, you would be highly mistaken. Prairies and savanna
ecosystems are absolutely endgame succession ecosystems that are fire
dominated. Its why prairies are in Florida and Alabama as well as Wisconsin
and Ohio, because they are a distinct succession ecosystem. They also occure
in the Pampas, African savanna and the Russian Steppe. Sure some of the
areas like the steppe are dry but much of the pampas and eastern prairies of
USA arnt. 

 

And all of those grassland ecosystems hold most of the biomass below
ground... and forest dont. I dont get what is to argue about this point. 

 

Brian Hans

 



David Yarrow <dyarrow at nycap.rr.com> wrote:

 

----- Original Message ----- 

From: David <mailto:dyarrow at nycap.rr.com>  Yarrow 

To: bhans at earthmimic.com 

Sent: Friday, September 21, 2007 2:41 PM

Subject: Re: [Terrapreta] CO2 rising

 

not true.  a very bad generalization.  all i will grant you is that grasses
arose recently in botanical evolution because they are highly successful
competitors to repopulate exposed, unforested soils -- especially drylands
with lower levels of rainfall and soil mineral nutrient supplies.  the
grasses and their herbaceous companions quickly cover these denuded niches
in the biosphere to shade and cool the land, filter rain and snowfall, and
begin to rebuild subsoil biomasses -- living, dead, and decaying.

----- Original Message ----- 

From: Brian <mailto:bhans at earthmimic.com>  Hans 

To: Terrapreta at bioenergylists.org 

Sent: Friday, September 21, 2007 8:40 AM

Subject: Re: [Terrapreta] CO2 rising

 

forests tend to hold their biomass within the above ground parts and
prairies/grasslands/ag. tend to hold biomass closer to or below the ground
level. 

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