文献类型： 会议论文

第一作者： Bryan M. Baltazar

作者： Bryan M. Baltazar ¹ ; Ronaldo B, Saludes ¹ ; Moises A. Dorado ¹ ; Pompe C, Sta. Cruz ² ;

作者机构： 1.Agrometeorology and Farm Structures DiVIsion, IAE, CEAT, UPLB

2.Institute of Crop Science, CAFS, UPLB

关键词： GIS;MCDA;SSA;Irrigation;Dams

会议名称： Asian conference on remote sensingACRS

主办单位：

页码： 2009-2017

摘要： Philippines as an agricultural country remains as a net importer of rice due to its lack of irrigation facilities and structures. With the prevailing effects of climate change, tremendous damage to rice production sector is inevitable if not addressed properly. Development of diversion dams and other small-scale irrigation projects is one of the adaptive measures being implemented by the government to overcome negative effects of climate change on agricultural productivity. However, diversion dam development is influenced by different factors including environmental and social factors. Also, during the site selection process for diversion dam, large volumes of environmental and geospatial data sets and information must be handled and analyzed. Hence, in this study, Multi-Criteria Decision Analysis (MCDA) and GIS were used to conduct site suitability analysis of diversion dams for rice irrigation in Quezon, Philippines. MCDA was employed to facilitate the decision-making process for dam site selection involving 10 criteria that were grouped into agrometeorological, physical, and economical factors. Moreover, Analytic Hierarchy Process (AHP) and consultation with experts from academe, industry, and institutions were used to determine the weights of each factors and criteria. Open-source GIS platform was utilized to process gathered data and to generate the overall suitability map. The generated overall suitability map showed that 3.5% of total river networks in Quezon were highly suitable sites for diversion dam. These river networks could irrigate additional 7,110.33 ha of rice areas. Field validation showed that 86% of selected existing diversion dam were operational and located in highly suitable sites, while 14% were partially operational and located in moderately suitable sites. Based on the generated maps and validation results, it can be concluded that Multi-Criteria Decision Analysis (MCDA) and GIS can be effective tools in determining suitable sites for the development of diversion dam and other small-scale irrigation projects for rice production.

分类号： tp7