Cet article vise à analyser les services (et dis-services) écosystémiques que la population cambodgienne retire de l’écosystème formé par le lac Tonle Sap et sa grande plaine d’inondation. Caractérisé par un phénomène de flux et de reflux du fleuve Mékong selon la saison des pluies, ce lac, dont la taille varie de un à cinq, est le lieu de la culture du riz, principale activité agricole du pays et denrée alimentaire de sa population. L’étude de cet agroécosystème, réalisé par des enquêtes dans six villages, montre une complexité dans la compréhension de ces services écosystémiques. Certains sont positifs, d’autres négatifs. Certains sont positifs jusqu’à un certain niveau, mais deviennent négatifs par la suite. Certains sont coproduits par la riziculture, qui au fil du temps a façonné l’écosystème. Nous montrons également, à partir d’une analyse des systèmes agraires, que les systèmes de production sont plus ou moins compatibles avec le maintien de ces services.
About 3ie The International Initiative for Impact Evaluation (3ie) promotes evidence-informed, equitable, inclusive and sustainable development. We support the generation and effective use of high-quality evidence to inform decision-making and improve the lives of people living in poverty in low-and middle-income countries. We provide guidance and support to produce, synthesise and quality assure evidence of what works, for whom, how, why and at what cost. 3ie impact evaluations 3ie-supported impact evaluations assess the difference a development intervention has made to social and economic outcomes. 3ie is committed to funding rigorous evaluations that include a theory-based design and that use the most appropriate mix of methods to capture outcomes and are useful in complex development contexts. About this report 3ie accepted the final version of the report, Rebuilding the social compact: urban service delivery and property taxes in Pakistan, as partial fulfilment of requirements under grant DPW1.1005 awarded through Development Priorities Window 1. The report is technically sound and 3ie is making it available to the public in this final report version as it was received. No further work has been done. The 3ie technical quality assurance team for this report comprises Francis Rathinam, Neeta Goel, Kanika Jha Kingra and Deeksha Ahuja, an anonymous external impact evaluation design expert reviewer and an anonymous external sector expert reviewer, with overall technical supervision by Marie Gaarder. The 3ie editorial production team for this report comprises Anushruti Ganguly and Akarsh Gupta.
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