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Limited potential of no-till agriculture for climate change mitigation

POWLSON, David S ; STIRLING, Clare M ; JAT, M. L ; GERARD, Bruno G ; PALM, Cheryl A ; SANCHEZ, Pedro A ; CASSMAN, Kenneth G

Nature climate change, 2014-08, Vol.4 (8), p.678-683 [Periódico revisado por pares]

London: Nature Publishing Group

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Título:
Limited potential of no-till agriculture for climate change mitigation
Autor: POWLSON, David S ; STIRLING, Clare M ; JAT, M. L ; GERARD, Bruno G ; PALM, Cheryl A ; SANCHEZ, Pedro A ; CASSMAN, Kenneth G
Assuntos: Agronomy. Soil science and plant productions ; Biological and medical sciences ; Climatology. Bioclimatology. Climate change ; Earth, ocean, space ; Exact sciences and technology ; External geophysics ; Fundamental and applied biological sciences. Psychology ; Meteorology ; Soil science
É parte de: Nature climate change, 2014-08, Vol.4 (8), p.678-683
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The Emissions Gap Report 2013 from the United Nations Environment Programme restates the claim that changing to no-till practices in agriculture, as an alternative to conventional tillage, causes an accumulation of organic carbon in soil, thus mitigating climate change through carbon sequestration. But these claims ignore a large body of experimental evidence showing that the quantity of additional organic carbon in soil under no-till is relatively small: in large part apparent increases result from an altered depth distribution. The larger concentration near the surface in no-till is generally beneficial for soil properties that often, though not always, translate into improved crop growth. In many regions where no-till is practised it is common for soil to be cultivated conventionally every few years for a range of agronomic reasons, so any soil carbon benefit is then lost. We argue that no-till is beneficial for soil quality and adaptation of agriculture to climate change, but its role in mitigation is widely overstated.
Editor: London: Nature Publishing Group
Idioma: Inglês

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Limited potential of no-till agriculture for climate change mitigation

POWLSON, David S ; STIRLING, Clare M ; JAT, M. L ; GERARD, Bruno G ; PALM, Cheryl A ; SANCHEZ, Pedro A ; CASSMAN, Kenneth G

London: Nature Publishing Group

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