Integrating Water Evaluation and Planning Modeling into Integrated Water Resource Management: Assessing Climate Change Impacts on Future Surface Water Supply in the Irawan Watershed of Puerto Princesa, Philippines

被引:0
|
作者
Cacal, Jennifer Collado [1 ,2 ]
Mehboob, Muhammad Shafqat [1 ,3 ]
Banares, Ernie Nograles [1 ,4 ]
机构
[1] Univ San Carlos, Sch Engn, Engn Grad Program, Cebu 6000, Philippines
[2] Palawan State Univ, Dept Civil Engn, Coll Engn Architecture & Technol, Puerto Princesa 5300, Philippines
[3] Univ San Carlos, Sch Engn, Dept Civil Engn, Cebu 6000, Philippines
[4] Sorsogon State Univ, Coll Engn & Architecture, Civil Engn Dept, Sorsogon 4700, Philippines
来源
EARTH | 2024年 / 5卷 / 04期
关键词
WEAP; climate change; Irawan Watershed; IWRM plan; CHALLENGES; FRAMEWORK;
D O I
10.3390/earth5040047
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The Irawan Watershed in Puerto Princesa, Philippines, is an important resource that supports domestic, agricultural, and industrial water needs. This study applies the Water Evaluation and Planning (WEAP) model to project the impacts of climate change on future surface water availability, integrating the findings into an Integrated Water Resource Management (IWRM) framework. Using bias-corrected General Circulation Models (GCMs) under four shared socioeconomic pathways (SSPs), this study examines scenarios from low to high emissions (SSP126, SSP245, SSP370, and SSP585) for the assessment of potential variations in water supply. The results indicate a significant vulnerability to water availability, especially under SSP370 and SSP585, where climate warming is pronounced, leading to significant reductions in streamflow. Conversely, SSP126 suggests relatively stable conditions with less pronounced hydrological changes. The study also explores the socioeconomic drivers that affect water demand, including population growth and land use changes that influence agricultural water needs. The findings underscore the urgency of using adaptive management strategies to conserve water resources in the face of these anticipated challenges. Key recommendations include optimizing water use efficiency in all sectors, establishing protective zones around natural ecosystems, implementing climate-resilient infrastructure, and promoting community engagement in water management. These measures are critical for enhancing water security and promoting sustainable development within the watershed, contributing to the broader goals of Sustainable Development Goal (SDG) 6. This study offers decision-makers and resource managers an evidence-based framework for integrating hydrological modeling into IWRM, providing valuable insights to navigate the complexities of climate change and ensure the long- term sustainability of water resources in the Philippines.
引用
收藏
页码:905 / 927
页数:23
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