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Monetary Assessment of Multifunctional Roles of Paddy Fields Application to Policy

INWEPF Japan Secretariat Shiro Watanabe. Monetary Assessment of Multifunctional Roles of Paddy Fields Application to Policy. Why Monetary Assessment?. 1. Account to the People. 2. Input to the international discussion. 3. Need for Planning Projects. Account to the People. Function category.

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Monetary Assessment of Multifunctional Roles of Paddy Fields Application to Policy

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  1. INWEPF Japan Secretariat Shiro Watanabe Monetary Assessment of Multifunctional Roles of Paddy FieldsApplication to Policy

  2. Why Monetary Assessment? 1. Account to the People 2. Input to the international discussion 3. Need for Planning Projects

  3. Account to the People Function category Annual cash value (billions of yen) Flood prevention 3,499 River flow stabilization 1,463 Groundwater recharge 54 Soil erosion (wash-off) Prevention 332 Landslide prevention 478 Breakdown of organic waste 12 Climate amelioration 9 Restoration of body and mind 2,376 In order for the people to understand importance of paddy agriculture, it is effective to show the monetary value of multi-functional roles of agriculture in figure.

  4. Input to International Discussion Full Cost In the international discussion e.g. OECD, discussion is going with the idea “Full cost recovery” to achieve effective water use in terms of economic viewpoint. Paddy farming in Asia monsoon region has positive externalities and we assert necessity of consideration on that, If we can present externalities in figure on the basis of monetary assessment, it will support our assertion strongly. [Agriculture harmful to Environment] 　[Agriculture provides benefit to Environment] =Paddy Agriculture in Asia monsoon Externalities Opportunity Cost Opportunity Cost Full Cost Externalities (Benefit) O&M Cost O&M Cost Capital Cost Capital Cost

  5. Need for Planning Projects In order to practice construction of infrastructure like irrigation facilities by Japanese Government, it is required to compare cost and benefit of the project and confirm the benefit overtake the cost. The benefit includes that of multi-functionalities, so the value should be estimated. Cost Requirement for project: B≧C C Benefit Food Production, Development of Rural Area etc… Multi-functionalities B

  6. Functions related to Multi-functionalities Kind of Works Irrigation & Drainage Land Readjustment Disaster Prevention Disaster Prevention (Public Goods) ○ ○ ○ Water Resource recharge ○ ○ Land Scape & Ecosystem Conservation ○ ○ Communication between Urban and Rural Area ○ ○

  7. Thank you for your attention!!

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