European Tribune - Comments - Grain Production and Population

Grain Production and Population | 104 comments (104 topical, 0 editorial, 0 hidden)

Re: Grain Production and Population (4.00 / 3)

The relation of increased CO2 to plant growth is very much a topic of on-going research. Earlier studies indicated, as you say, a neutral effect. At least one report published in the last year, however, reported a net decrease in food/plant production. I do not know the academic standing of that report.

Like you, I'm waiting for the IPCC to get off its collective asses so I can read the 'baseline' consensus.

Re: Soil erosion

Is a subject I've had to triage out. Not from lack of interest - far from it! - but from lack of time. Would you be interested in writing a diary?

by ATinNM on Sun Jun 24th, 2007 at 05:03:30 PM EST
[ Parent ]

Re: Grain Production and Population (4.00 / 2)

Eli Rabett of Rabett Run has a concise summary of the evidence as of a year ago about CO2 fertilization:

There is no CO2 fertilization effect for C4 crops although increased drought resistance may be significant.
FACE studies show that current ag models significantly overestimate CO2 fertilization for crops
C3 crop CO2 fertilization saturates somewhere between 600 and 800 ppm CO2

Weeds grow well in high CO2 Crops?

Doesn't it seem that DeAnander is much better prepared to write a diary about this? ;-)

by Fete des fous on Mon Jun 25th, 2007 at 10:00:07 AM EST
[ Parent ]

Re: Grain Production and Population (none / 1)

I forgot to add that even if you do not develop the question, you should consider including in your diary (for future postings) a simple statement regarding soil erosion to let your readers know that it is also a formidable challenge to crop sustainability.

by Fete des fous on Mon Jun 25th, 2007 at 10:10:17 AM EST
[ Parent ]

Grain Production and Population | 104 comments (104 topical, 0 editorial, 0 hidden)

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