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Biodrainage and Carbon Sequestration (Paperback)
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Biodrainage and Carbon Sequestration (Paperback)
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CANAL irrigation introduced for increasing crop production in arid
and semi-arid regions also caused a rise in the groundwater table
followed by waterlogging and secondary soil salinization. For the
reclamation of waterlogged saline soils, the conventional technique
is sub-surface drainage which is relatively expensive and generates
harmful drainage effluents. A viable alternative of the above
technique could be biodrainage, which is 'pumping of excess soil
water by deep-rooted plants using bioenergy'. Biodrainage is
economical because it requires only initial investment for planting
the vegetation, and when established, the system provides economic
returns by means of fodder, wood or fibre harvested and
additionally sequesters carbon in the timber. Cloned Eucalyptus
tereticornis (Mysure gum) is fastgrowing, goes straight and thus
has low shading effect and has luxurious water consumption where
excess soil moisture conditions exist. It grows well under a wide
range of climatic conditions. In waterlogged areas, it can be
successfully grown by ridge planting. The world's Eucalyptus
plantation area has increased to 19 m ha because of its fast growth
rate, and carbon sequestration.
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