IJSRP, Volume 8, Issue 3, March 2018 Edition [ISSN 2250-3153]
Al-Hassan Abdul Wahab, P. N. Valentine, Njoroge L. W., A. T. Kpatende, Oting W. K. A
Earth as a planet is known as the ‘blue planet’ because of the large capacity of stocks of water but only a small amount is easily available in accessible reserves of groundwater, lakes, rivers and the soil-water store. Water scarcity is becoming a widespread concern in many parts of the world because human usage is putting pressure on these limited water resources. The Agricultural sector is reported to be a major freshwater consumer globally and around 70% of the world’s freshwater withdrawal is for irrigation. This justifies the need to develop standard indicators to evaluate human demand on natural resources. This paper aims to summarize the approaches of water footprinting with focus on the approaches suitable to assess water consumption of agricultural activities.