|
| NO! Every system has an equilibrium point - OM levels cannot and will not just keep going up indefinitely.
Inputs -Outputs = Net.... eventually in any system the equilibrium will be reached and Net = 0. How long it takes for that equilibrium to be reached - good question, it depends.
So lets just say for example, the equilibrium for conventional tillage in a given field is 3.5% OM. Maybe the equilibrium point for long-term No-till on that same field is 5%. Maybe the equilibrium point for long-term no-till plus continuous covers is 6%. It won't just "keep going up forever". And if that field goes back to conventional tillage, it will eventually go back to it's tillage equilibrium @ 3.5%.
This is for example only - it's overly simplified.
I think a bunch of people who don't have the slightest understanding of soil carbon cycling are coming up with this carbon credit/trading BS. Unless they're doing permanent easements on land to keep it no-tilled or cover-cropped or (insert other carbon sequestration practice) forever, the soil is likely just TEMPORARY storage for carbon.
| |
|
Land O' Lakes and Mircosoft want your Carbon
