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ZENITH International Journal of Business Economics & Management Research
Year : 2012, Volume : 2, Issue : 7
First page : ( 66) Last page : ( 81)
Online ISSN : 2249-8826.

Basic water requirement and water budget study of BAC ninh province (Vietnam)

Dr Pareta Kuldeep

Senior Project Manager, New Delhi, India.

Abstract

Careful use of the limited fresh water resources is the need of the hour. If sufficient measures are not taken up immediately, we will face a crisis which will be detrimental to the very survival of mankind. The Bac Ninh Province of Vietnam is facing a similar problem of acute shortage of drinking water. The water resources in this study area have been estimated by water balance assessment approach. The water balance study using the Thornthwaite and Mather (TM) models with the help of remote sensing and GIS is very helpful in finding out the moisture deficit and moisture surplus for an entire province. The water balance calculation shows that the maximum annual runoff results from the built-up areas/water body followed by agricultural land, and minimum for the barren land and open forest. The annual deficit in the Bac Ninh Province is 1362.2 mm and the annual surplus is 552.7 mm. The total runoff of Bac Ninh Province was calculated as 564.2 mm from the total precipitation of 1384.2 mm. The annual surface water availability for Bac Ninh Province works out at 564.23 mcm. Deducing 5%, which is usually regarded as natural discharge during non-monsoon months, thus region as 536.02 mcm as surface water availability. The current gross demand as drinking & domestic, irrigation purpose / agricultural used, and industrial used is 347.52 mcm (64.83%). The balance surface water availability for future development in the Bac Ninh Province is 188.50 mcm.

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Keywords

Water Budget, Water Balance, Thornthwaite Method, Residual Mass Curve, and Surface Water Availability.

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