Biodrainage
Ch. Apparao*
ARS, Ananthapuramu, A.P-515001, India
G. Rakesh
YSRHU, Venkaraigudem, A.P-534101, India
DOI: NIL
Keywords: Biodrainage, Drainage, Agroforestry, Water logging
Abstract
Biodrainage may be defined as “pumping of excess soil water using bio-energy through deep-rooted vegetation with high rate of transpiration”. The biodrainage system consists of fast growing tree species, which absorb water from the capillary fringe located above the ground water table. The absorbed water is translocated to different parts of plants and finally more than 98% of the absorbed water is transpired into the atmosphere mainly through the stomata. This combined process of absorption, translocation and transpiration of excess ground water into the atmosphere by the deep rooted vegetation conceptualizes bio-drainage. Fast growing Eucalyptus species like known for luxurious water consumption under excess soil moisture condition are suitable for biodrainage. These species can be planted in blocks in the form of farm forestry or along the field boundary in the form of agroforestry. Other suitable species for block plantations are Casuarina glauca, Terminalia arjuna, Pongamia pinnata and Syzygium cuminii etc.
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Reference
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