Influence of tillage practice on carbon sequestration is scale-dependent
نویسندگان
چکیده
منابع مشابه
Tillage, Nitrogen, and Cropping System Effects on Soil Carbon Sequestration
With increased cropping intensity, one would expect that more crop residue and C would be added to the Soil C sequestration can improve soil quality and reduce agriculsoil than with a crop-fallow system (Campbell et al., ture’s contribution to CO2 emissions. The long-term (12 yr) effects of tillage system and N fertilization on crop residue production and 1995, 2000b; Janzen et al., 1998a; Pete...
متن کاملTillage and soil carbon sequestration—What do we really know?
It is widely believed that soil disturbance by tillage was a primary cause of the historical loss of soil organic carbon (SOC) in North America, and that substantial SOC sequestration can be accomplished by changing from conventional plowing to less intensive methods known as conservation tillage. This is based on experiments where changes in carbon storage have been estimated through soil samp...
متن کاملImpact of Tillage and Crop Rotation Systems on Soil Carbon Sequestration
What is carbon (C) sequestration? Carbon sequestration can be defi ned as the capture and secure storage of carbon that would otherwise be emitted to or remain in the atmosphere. The idea is to (1) prevent carbon emissions produced by human activities from reaching the atmosphere by capturing and diverting them to secure storage, or (2) remove carbon from the atmosphere by various means and sto...
متن کاملTillage, cropping systems, and nitrogen fertilizer source effects on soil carbon sequestration and fractions.
Quantification of soil carbon (C) cycling as influenced by management practices is needed for C sequestration and soil quality improvement. We evaluated the 10-yr effects of tillage, cropping system, and N source on crop residue and soil C fractions at 0- to 20-cm depth in Decatur silt loam (clayey, kaolinitic, thermic, Typic Paleudults) in northern Alabama, USA. Treatments were incomplete fact...
متن کاملCrop residue and tillage effects on carbon sequestration in a Luvisol in central Ohio
Soils play a key role in the global carbon cycle. They can be a source or a sink of carbon and in ̄uence CO2 concentrations in the atmosphere. In order to calculate the carbon budget of a region, the effect of soil management practices on carbon sequestration in soils needs to be quanti®ed. Objectives of this experiment were to determine: (i) the effects of ridge till, plow till and no-till on t...
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ژورنال
عنوان ژورنال: Canadian Journal of Soil Science
سال: 2001
ISSN: 0008-4271,1918-1841
DOI: 10.4141/s00-017