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Carbon capture on grass land
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<blockquote data-quote="egbert" data-source="post: 7290300" data-attributes="member: 9965"><p>I do wish some of us would keep a more level head.</p><p>You're asking exactly the right questions, but the answers are heading into fantasy land again.</p><p></p><p>Certainly, grassing it out and introducing some herbivores will start to put carbon back in the ground.</p><p>But....as far as I can see, there is a limit to the carbon most Uk soils will hold before they become fragile beyond practical use.</p><p></p><p>As an example...</p><p>Look at the sheltered spot round the back of the steading on most hill units. The sycamore trees have shed their leaves there for centuries, the house cow has stood in the shelter, likewise crappping on the deep crumbly dirt, enriching it further. </p><p>And now, at the very first sign of rain, the turf goes soft, and her hooves punch straight through.</p><p></p><p>Scale that up to field wide scenario, and you'd eventually* have ground so soft you can hardly step on it when its wet, and it's close to being unusable for mechanical operations.....at which point the carbon is immediately decamping once more.</p><p>It's also a problem that naughty little invertebrates will keep grubbing it around and bringing it to the surface...where it will fly away.</p><p></p><p>Peatland is a good example. Lowland peat in dry parishes can be drained and tilled, but at a huge carbon loss cost.</p><p>Intact upland /rainsoaked peat is desperately soft, vulnerable to poaching/tractor marking.</p><p>Likewise, old growth forest, where thousands of years of tree growth should leave carbon yards deep...but the boulders still poke through the surface.</p><p></p><p>*timescales are important in this conversation. we're being asked to capture hundreds of millions of years worth of carbon, and such soil building s only ever going to be measured in decades before it becomes difficult to maintain.</p><p></p><p>Take the ELMs money, if that's what the urban morons think is the answer, so they can keep flitting to Malaga, but don't kid yourself.</p></blockquote><p></p>
[QUOTE="egbert, post: 7290300, member: 9965"] I do wish some of us would keep a more level head. You're asking exactly the right questions, but the answers are heading into fantasy land again. Certainly, grassing it out and introducing some herbivores will start to put carbon back in the ground. But....as far as I can see, there is a limit to the carbon most Uk soils will hold before they become fragile beyond practical use. As an example... Look at the sheltered spot round the back of the steading on most hill units. The sycamore trees have shed their leaves there for centuries, the house cow has stood in the shelter, likewise crappping on the deep crumbly dirt, enriching it further. And now, at the very first sign of rain, the turf goes soft, and her hooves punch straight through. Scale that up to field wide scenario, and you'd eventually* have ground so soft you can hardly step on it when its wet, and it's close to being unusable for mechanical operations.....at which point the carbon is immediately decamping once more. It's also a problem that naughty little invertebrates will keep grubbing it around and bringing it to the surface...where it will fly away. Peatland is a good example. Lowland peat in dry parishes can be drained and tilled, but at a huge carbon loss cost. Intact upland /rainsoaked peat is desperately soft, vulnerable to poaching/tractor marking. Likewise, old growth forest, where thousands of years of tree growth should leave carbon yards deep...but the boulders still poke through the surface. *timescales are important in this conversation. we're being asked to capture hundreds of millions of years worth of carbon, and such soil building s only ever going to be measured in decades before it becomes difficult to maintain. Take the ELMs money, if that's what the urban morons think is the answer, so they can keep flitting to Malaga, but don't kid yourself. [/QUOTE]
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