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Proposals for Methodology for the Production of an Inventory of National Natural Resources: Establishment of Ecosystem Accounting in the Boeny Region

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Name of the Asset | Proposals for Methodology for the Production of an Inventory of National Natural Resources: Establishment of Ecosystem Accounting in the Boeny Region
Type of Asset | Working Paper
Date | December 2014

Summary

The sustainability of water supply is a major issue in Mauritius, despite seemingly adequate precipitation.  

This study makes an assessment of the water situation through the lens of water accounts; an analysis of water trends, economic value and future water shortages with due consideration of climate change impacts; and a critical analysis of governance issues in the water sector.

The study estimates the price elasticity of demand in residential and non-residential sectors at -0.16% and -0.72% and a corresponding income elasticity of 0.23 and 0.39.  A survey was also conducted on water use at the household level.

It was observed that around 43% of households adopted adaptation strategy to water shortages, such as water tank and pump.  The study also forecasts demand for water under three economic growth scenarios (2%, 5.5%, and 7%) for the period 2015-2030, and concludes a respective rise of 16.3%, 38% and 50.7% by 2030 from the current level. Combining climate change scenarios, water shortages in the range of 19Mm3 to 52Mm3 is expected in 2030. 

The study recommends additional storage systems and reducing distributional loss from piped networks, which costs money. Thus, revenues from water supply should be raised in the long run, rather than curbing demand, especially since the current pricing policy has no room for funding improvement projects.  Restructuring of tariffs will also mean changing the role of institutions to raise revenue in addition to maintenance. The report also describes the nature of governance needed for improved, more sustainable services,  in addition to a recently elaborated national water policy.  

Authors | 

  • Rakotozanany, A.R., Département de Biologie et Ecologie Végétales (DBEV), Université d’Antananarivo
  • Roger, E., Département de Biologie et Ecologie Végétales (DBEV), Université d’Antananarivo
  • Manjarisoa, J.C., Institut et Observatoire de Géophysique d’Antananarivo (IOGA), Université d’Antananarivo
  • Rambeloarisoa, L.F., Département de Biologie et Ecologie Végétales (DBEV), Université d’Antananarivo
  • Faramalala, M., Département de Biologie et Ecologie Végétales (DBEV), Université d’Antananarivo
  • Rakotoniaina, S., Institut et Observatoire de Géophysique d’Antananarivo (IOGA), Université d’Antananarivo
  • Rakotondraompiana, S. A., Institut et Observatoire de Géophysique d’Antananarivo (IOGA), Université d’Antananarivo
  • Ramihangihajason, T., Institut et Observatoire de Géophysique d’Antananarivo (IOGA), Université d’Antananarivo

Country and/or Region | Madagascar
Name of the Program | Natural Resource Management – Natural Wealth Accounting
Funder(s) |  The French Ministry of Foreign Affairs and International Development and the French Agency for Development (AFD)

Download the Full Study (in French) here

If you cite this resource, please notify communications@gdn.int with the subject line 'GDN citation'.

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