ADB亚洲开发银行：2025年自由流动的河流：亚行资助项目的筛选和评估指南报告（英文版）

It sets out the definition of free-flowing rivers as those largely unaffected by human-made changes for over 500 kilometers. It provides practical steps to first verify rivers and then calculate project impacts on factors including waterflow and connectivity. It explains why adopting this strategy can drive informed and transparent decision-making, conserve fresh water, and better preserve essential rivers.