176
H. Elbasiouny and F. Elbehiry
such increases may not occur in fine-textured soils, under cold and poorly drained
conditions, or where the antecedent SOC concentration is high [98].
14 Summary
Soil C sequestration is a very important tool for C storage, atmospheric CO 2 reduction
and climate change mitigation. As well, it is critical for enhancing soil fertility,
agricultural productivity, and sustainability. Adoption of good management practices
may make agricultural soils an effective C sink because of their content of C content
is below the C saturation point, which means that an additional C can be sequestered
with time. Soil C and N are low in Egyptian soils and in Delta’s soils although the
Nile Delta is one the most fertile area in Egypt. Although North Nile Delta, Egypt
produces a very small percentage of global GHGs emissions, it is one of the most
vulnerable areas to the expected impacts and risks of climate change. In addition,
although, Nile Delta in Egypt is one of the most fertile areas in the world, it contains
a considerable area of degraded and un-reclaimed soils. Therefore, the reclamation
process in such areas is very important not only for agricultural extension in Egypt
but also it may have a significant effect on SOC by alternation of soil condition and
inputs and outputs of organic C. Thus, such soil has huge potential to sequester more
C and N, subsequently reducing atmospheric CO 2 if improved management practices
are adopted.
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