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来源:百度知道 编辑:UC知道 时间:2024/07/02 17:48:07
Since the 1850s, a large proportion of the world's grasslands have been tilled and converted to croplands, allowing the rapid oxidation of large quantities of soil organic carbon. However, in the United States in 2004, agricultural soils including pasture land sequestered 0.8% as much carbon as was released in the United States by the combustion of fossil fuels. The annual amount of this sequestration has been gradually increasing since 1998.
Methods that significantly enhance carbon sequestration in soil include no-till farming, residue mulching, cover cropping, and crop rotation, all of which are more widely used in organic farming than in conventional farming. Because only 5% of US farmland currently uses no-till and residue mulching, there is a large potential for carbon sequestration. Conversion to pastureland, particularly with good management of grazing, can sequester even more carbon in the soil.
Terra preta, an anthropogenic, high-carbon soil, is also being inves

自19世纪50年代,很大比例是世界上草原已耕种,并转化为耕地,允许快速氧化大量的土壤有机碳。然而,美国在2004年,农业土壤,包括牧场螯合0.8 %作为大部分碳被释放作为在美国燃烧矿物燃料。每年这笔固已逐渐自1998年以来,越来越多。
方法,大大提高固碳在土壤中包括免耕种植,残留地膜,覆盖种植,作物轮作,所有这些都是更广泛地使用在有机耕作比传统耕作。由于只有5 %的美国目前使用农田免耕和残留物覆盖,有很大潜力的碳吸收。转换为牧场,特别是良好管理的放牧,甚至可以吸收更多的碳在土壤中。
地球普雷塔,一个人为,高碳钢土壤,也正在调查作为一个隔离的机制。通过热解生物质,约一半的二氧化碳可以减少木炭,可以坚持在土壤中数百年,并提出了有益的土壤修正案,特别是在热带土壤.

自19世纪50年代,很大比例是世界上草原已耕种,并转化为耕地,允许快速氧化大量的土壤有机碳。然而,美国在2004年,农业土壤,包括牧场螯合0.8 %作为大部分碳被释放作为在美国燃烧矿物燃料。每年这笔固已逐渐自1998年以来,越来越多。
方法,大大提高固碳在土壤中包括免耕种植,残留地膜,覆盖种植,作物轮作,所有这些都是更广泛地使用在有机耕作比传统耕作。由于只有5 %的美国目前使用农田免耕和残留物覆盖,有很大潜力的碳吸收。转换为牧场,特别是良好管理的放牧,甚至可以吸收更多的碳在土壤中。
地球普雷塔,一个人为,高碳钢土壤,也正在调查作为一个隔离的机制。通过热解生物质,约一半的二氧化碳可以减少木炭,可以坚持在土壤中数百年,并提出了有益的土壤修正案,特别是在热带土壤。 这是我谷歌上翻印的,希望对你有用,祝有更厉害的高手来帮你解答!

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