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1Preferred supplier of quality statisticsWater – May 06 Presentation to the User-Producer Conference: Water Accounting for Integrated Water Resource Management.

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Presentation on theme: "1Preferred supplier of quality statisticsWater – May 06 Presentation to the User-Producer Conference: Water Accounting for Integrated Water Resource Management."— Presentation transcript:

1 1Preferred supplier of quality statisticsWater – May 06 Presentation to the User-Producer Conference: Water Accounting for Integrated Water Resource Management Water Accounts in South Africa Anemé Malan Statistics South Africa

2 2Preferred supplier of quality statisticsWater – May 06 Structure of presentation Background SAs water policy Water resource accounts in SA Monetary analysis Way forward Comparison between countries

3 3Preferred supplier of quality statisticsWater – May 06 Background (1) Water management areas of SA

4 4Preferred supplier of quality statisticsWater – May 06 Background (2) Average rainfall: 500 mm/annum (= 612 billion m 3 ); Natural Mean Annual Runoff: 49 billion m 3 ; Dam Storage Capacity: 32 billion m 3 ; Reserved for Ecological River Use: 9,5 billion m 3 ; 1:50 Yield: 13,2 billion m 3 ; – Surface waters contribution to yield: 78% – Ground waters contribution to yield: 8% – Usable Return Flows: 14% Some figures

5 5Preferred supplier of quality statisticsWater – May 06 Background (3) Yield

6 6Preferred supplier of quality statisticsWater – May 06 Background (4) Development imperatives versus Water Scarcity Rural (domestic & stock watering); Urban (Direct (domestic) & Indirect (industrial, commercial, public)); Mining & Bulk (not via municipalities); Power generation; Irrigation; Afforestation; Transfers;

7 7Preferred supplier of quality statisticsWater – May 06 SAs water policy (1) National Water Policy (NWP) Adopted by Cabinet in 1997; 3 fundamental objectives to manage water resources a)Equitable access to water b)Sustainable use of water c)Efficient and effective water use

8 8Preferred supplier of quality statisticsWater – May 06 SAs water policy (2) National Water Act (NWA) of SA 1998 Principal legal instrument for implementing objectives of NWP Key provisions and fundamental changes include: a)Transforming legal access and rights to water; b)Ensuring provision of water for basic human need and protection of aquatic ecosystems; c)Decentralising water management through more enabling institutions; d)Pricing for financial and environmental sustainability, ecn. efficiency and social equity; e)Refocus on water conservation and demand management; f)NWRS of 2004;

9 9Preferred supplier of quality statisticsWater – May 06 Water resource accounts in SA (1) Towards WRA for RSA 1991-1998 (RANESA; CSIR; DEAT/Stats SA/DWAF/WRC/AG); Upper Vaal River Account ( Stats SA; Conningarth); Accounts for 2000 ( Stats SA ); Draft updated accounts for 1995 and 2000 ( Stats SA; RANESA; CIC );

10 10Preferred supplier of quality statisticsWater – May 06 Water resource accounts in SA (2) Constructed Flow Accounts 1 st step: I-O matrix for 20 areas for 1995 and 2000. Used SEEA guidelines consistent with NWA & NWRS Advantages: 1)Provides non-econ with easier interpretation of water flows in econ framework 2)Prevent double countingduring interpretation & application of complex hydrological numbers 2 nd step: Some macro-ecn adjustments to national I-O table to ensure consitency with SEEA guidelines. 3 rd step: National I-O WRA converted to the adjusted UN SUT-format.

11 11Preferred supplier of quality statisticsWater – May 06 Water resource accounts in SA (3) Some differences Yield instead of MAR Environmental reserve Classifications – ISIC vs NWRS (e.g. Rural development and stream flow reduction unique to SA?) Stock accounts were not compiled - this is not useful for SA water managers Various types of analyses were done (e.g. Pathways - and spatial analyses )

12 12Preferred supplier of quality statisticsWater – May 06 Water resource accounts in SA (3) Water flow account structure: I-O framework EnvironmentDistributorsProductionTotal Environment Distributors Production Total Supply Use

13 13Preferred supplier of quality statisticsWater – May 06 Water resource accounts in SA (4) Environment Atmosphere and sea Natural MAR Surface water yield Ground water Soil water Ecological reserve Distributors DWAF (total yield) Irrigation boards Water boards Municipalities ROW and other WMAs Link with DWAF Irrigation Rural (stock watering) Afforastation Mining Power generation Bulk Urban (indirect (industrial, Commercial, public)) Urban (direct (domestic)) Rural domestic Production (ISIC?) Agriculture Dry land and irrigation Livestock Plantation Mining Electricity Other Bulk industrial Other commercial and industrial Domestic Urban Rural

14 14Preferred supplier of quality statisticsWater – May 06 Monetary analysis Expenditure on water by ecn sector; Indicators of income & empl supported by water use in production; Tarrifs on water use; Expenditure and subsidies on water by distribution sectors; Using other data sources e.g. SUT, NA

15 15Preferred supplier of quality statisticsWater – May 06 Way forward Hydrologists and Economists; Construction of monetary accounts: Water pricing is important for water demand management; Water quality, specifically the impact of water quality on the water yield (volume); Policy;

16 16Preferred supplier of quality statisticsWater – May 06 Comparison between countries (1) 499869Per capita water use except agriculture (m 3 per capita) 95365157Per capita water use (m 3 per person) 14214 830256Total water use (million m 3 ) BotswanaSouth Africa Namibia Water use in Namibia, South Africa, Botswana in 1996

17 17Preferred supplier of quality statisticsWater – May 06 Comparison between countries (2) Water use by sector in Namibia, South Africa, Botswana, 1996 (%) 311329 Households 993Services,Trade, Govt. 112Manufacturing 11310Mining 487358Agriculture BotswanaSouth Africa Namibia

18 18Preferred supplier of quality statisticsWater – May 06 Comparison between countries (3) National income generated per m 3 of water used by sector, 1996 (pula/m 3 of water used) NamibiaSouth AfricaBotswana Agriculture628 Mining5461420 Manufacturing18998437 Services, trade, Govt. 542155724 GDP per m3 of water input 4525124 GDP per m3 of water input (excl. agricul.) 10887158

19 19Preferred supplier of quality statisticsWater – May 06 Thank you Anemé Malan anemem@statssa.gov.za www.statssa.gov.za


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