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NEGOWAT Informe resumido

Project ID: ICA4-CT-2002-10061
Financiado con arreglo a: FP5-INCO 2
País: France

Methodology to support dialogue at catchment level about conjonctive and integrated management of water at catchment level

The objective of this intervention was to help stakeholders to better take into account quality issues in the management of water at catchment level, and to contribute to a dialogue to promote a better integration of agricultural activities in catchment development and policy in a complex catchmet including various reservoirs as the Cabeceiras-Tietê sub-catchment in the Metropolitan region of Sao Paulo.
To facilitate the mobilization of the specific users in this discussion (in this case agriculture), specific activities oriented toward were developed.

A role playing game was developed with the multi-agent software Cormas ( based on an environmental setting representing the catchment studied (the Alto Tietê Cabeceiras Sub-Catchment) This peri-urban catchment includes multiple and competitive use of water influenced by the neighbourhood of the metropolitan region.

Five actors are represented within the game, which requires six players and includes. (i) mayors that have to guarantee access to water services for their inhabitants. (ii) the manager of a water company (iii) The irrigating farmers delegate defending irrigator's interests (iv) the industry's delegate defending interests of industries. (v) The Catchment Water Department operating the complex hydraulic system respecting the user's water rights. All action are set in a governance framework including water rights and quality licence inspired from the Sao Paulo state's water legislation.

The players make decisions every six months either just before the rainy or dry season in order to operate their system taking into account: (i) production objectives, (ii) pumping processes, and (iii) effluent treatment processes. Processed by the model, these decisions are translated into water demand (quality and quantity), water effluent (quality and quantity) and water satisfaction i.e. whether demand is met (quality and quantity).

The hydrological functionning included in the game were based on existing previous models and datas dealing with biophysical dynamics (quality/quantity processes, developped by other projects.

the games have been played twice within the catchment comittees and it is planned to play it again on demand.

The method have proved particularly interesting to (i) (ii) change attitudes and representations about the situation (iii) improve global understanding of the system studied, its dynamics and relationships between components (iii) improve collective and individual learning, more specifically about the significance of integrated management of water, about water quality management in a complex system (iv) introduce discussion about rural aspects of water management at catchment level (an important issue in a territory previoulsy conceived as an expansion area for urbanisation process) (v) contribute to discussion about allocation of water rights fee. Proposals to improve the functionning of the subcommittees were submitted such as training courses on negotiation. It also proved useful as a way to prepare other simulation activities as a platform to discuss modelling, representation, simulation and building of scenarios.

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UMR G-EAU : Research Unit on Water Management, Actors & Uses CIRAD Avenue Agropolis - TA C-90 / 02
34398 Montpellier Cedex 5
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