Facing Climate Change: Urban Gardening and Sustainable …
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to agricultural soils as a carbon (C) source for microorganisms and C sequestration
is dependent on soil physiochemical properties, which can be improved by aggregation using soil conditioners. Biochar and BP accelerated the decomposition of
plant residues as indicated by 14CO 2 efflux, and resulted in reduced stabilization
of residues in both soils relative to that observed in the control and polyacrylamide
treatments [57].
“Biochar” is thought to be a useful soil amendment to reduce greenhouse gas
(GHG) emissions [59]. Biochar also improves the physical and biological properties
of soil, thereby allowing it to retain nutrients and enhance plant growth [60] and large
applications enhance C stock in soil [61].
6.2 Irrigation Methods and Fertilization
A field study was conducted to compare the emissions of N 2 O and methane (CH 4 )
as GHG under interaction between some irrigation methods (drip irrigation and
furrow irrigation) and fertilization regimes. The emissions of N 2 O and methane were
significantly lower by fertilization through irrigation (fertigation). The key factor
affecting GHG production in agricultural soil is soil moisture. Optimum irrigation
can decrease GHG emissions by regulating the N and carbon turnover process in soil
through manipulating soil water content [62].
Drip irrigation is one of the water saving irrigation methods generally extended in
semiarid or arid regions, ever since it can reduce surface evaporation, surface runoff,
and deep percolation [63].
Water and mineral N fertilizer are directly supplied to the crop root zone through
a drip irrigation method to adjust to the plant requirements. Therefore, improving the
water and nitrogen use efficiency (NUE). Therefore, drip irrigation may have a large
influence on the nitrogen and carbon income in soil and decrease the N fertilizer
induced N 2 O or carbon-related greenhouse gas (e.g., CH 4 ) creation, in relation to
ordinary furrow irrigation method [59].
7 Gardens and National Parks Soil Management Assist
Mitigate Climate Change [64]
Exact soil management can assist to regulate emissions of three key greenhouse
gases (carbon dioxide, methane and nitrous oxide) from agriculture, which make
contributions to climate change.
• Including the addition of nitrate to soils, whether or not in fertilizer or mineralized
natural be counted, will increase the chance of nitrous oxide emissions. The risks
of nitrous oxide release are finest in wet, warm and clay or compacted soils, and
where levels of decomposable natural organic matter are excessive.
359
to agricultural soils as a carbon (C) source for microorganisms and C sequestration
is dependent on soil physiochemical properties, which can be improved by aggregation using soil conditioners. Biochar and BP accelerated the decomposition of
plant residues as indicated by 14CO 2 efflux, and resulted in reduced stabilization
of residues in both soils relative to that observed in the control and polyacrylamide
treatments [57].
“Biochar” is thought to be a useful soil amendment to reduce greenhouse gas
(GHG) emissions [59]. Biochar also improves the physical and biological properties
of soil, thereby allowing it to retain nutrients and enhance plant growth [60] and large
applications enhance C stock in soil [61].
6.2 Irrigation Methods and Fertilization
A field study was conducted to compare the emissions of N 2 O and methane (CH 4 )
as GHG under interaction between some irrigation methods (drip irrigation and
furrow irrigation) and fertilization regimes. The emissions of N 2 O and methane were
significantly lower by fertilization through irrigation (fertigation). The key factor
affecting GHG production in agricultural soil is soil moisture. Optimum irrigation
can decrease GHG emissions by regulating the N and carbon turnover process in soil
through manipulating soil water content [62].
Drip irrigation is one of the water saving irrigation methods generally extended in
semiarid or arid regions, ever since it can reduce surface evaporation, surface runoff,
and deep percolation [63].
Water and mineral N fertilizer are directly supplied to the crop root zone through
a drip irrigation method to adjust to the plant requirements. Therefore, improving the
water and nitrogen use efficiency (NUE). Therefore, drip irrigation may have a large
influence on the nitrogen and carbon income in soil and decrease the N fertilizer
induced N 2 O or carbon-related greenhouse gas (e.g., CH 4 ) creation, in relation to
ordinary furrow irrigation method [59].
7 Gardens and National Parks Soil Management Assist
Mitigate Climate Change [64]
Exact soil management can assist to regulate emissions of three key greenhouse
gases (carbon dioxide, methane and nitrous oxide) from agriculture, which make
contributions to climate change.
• Including the addition of nitrate to soils, whether or not in fertilizer or mineralized
natural be counted, will increase the chance of nitrous oxide emissions. The risks
of nitrous oxide release are finest in wet, warm and clay or compacted soils, and
where levels of decomposable natural organic matter are excessive.