FAO Regional Office for Asia and the Pacific

Publications

2025

To better understand the process of monitoring irrigation performance, this brief examines a pilot study in Cambodia, which developed a benchmarking methodology to undertake ongoing performance assessment of irrigation schemes for strategic investments in increasing water productivity.

2025

Based on extensive work carried out by FAO and FutureWater under the Asia Pacific Water Scarcity Programme (WSP), this brief examines the complexities associated with efforts to increase water use efficiency and the importance of utilising water accounting and consistent use of terminology in developing water management interventions.

2025

This brief provides policy-makers and experts with an understanding of consumption-based water management (CBWM) so that they can consider whether it may – or may not – be possible to apply it in irrigation- dependent parts of Asia that are currently experiencing, or are expected to experience, overextraction of water resources, in particular groundwater.

2025

In 2019, FAO in partnership with the Stockholm Environment Institute assessed the water modelling capacities of seven countries with the highest score for climater-related disasters in the Asia-Pacific region. This brief exmaines the findings from this assessment and includes observations on the extent to which modelling is used in policy development and implementation.

2025

In the Lower Mekong Basin, expansive irrigation systems have disrupted aquatic habitats, notably obstructing fish migration essential for biodiversity, ecosystem health, and local food security. This brief highlights the need for adaptive management, underpinned by research, as essential for ensuring that infrastructure development remains ecologically sustainable and benefits communities reliant on fisheries.

2025

This brief outlines the significance of spatial planning in water resource management, specifically in addressing habitat fragmentation and the challenges posed by fish passage barriers.

2025

By weaving together empirical case studies, best practices, and strategic insights, the brief aims to guide practitioners toward creating agricultural water resource initiatives that not only stand resilient in the face of challenges but also honor the rights and needs of every stakeholder.

2025

This publication is the starting point for using the Follow the Water (FtW) tool, which seeks to help users understand water flows in irrigation systems and detect the impacts of changes in irrigations systems' allocations, consumptions and return flows.

2025

Water shortages in the Asia-Pacific region critically impact food security, as irrigated agriculture accounts for nearly 90 percent of freshwater withdrawals. This document provides an overview of the REal Water Savings (REWAS) tool, which was developed as a practical approach to evaluating the larger-scale impacts of field-level crop-watering interventions.