西南河流源区是我国重要的水资源战略储备区，是气候变化敏感区，近年来西南河流源区径流呈现出复杂的变化特征，其未来演变趋势不明。“西南河流源区径流变化与适应性利用”重大研究计划瞄准径流变化及其适应性利用的核心科学问题与国际前沿热点，面向水和能源安全的国家重大战略需求，以西南河流源区为对象区域，通过稳定和较高强度的支持，开展高水平研究，为我国水安全和能源安全提供基础理论和科学支撑。本申请项目为该重大计划的战略研究项目，用于支持指导专家考察调研、专家研讨、跟踪总结、国内外学术交流以及重大计划推广宣传等活动，拟重点开展集成研究，形成集成研究调研报告，把握学术前沿动态，对计划开展进行前瞻性指导和统筹。

The Major Rivers in Southwestern China (MRSC) is the strategic reserves of water resources and a sensitive region for climatic changes. In recent years, the streamflows in MRSC manifest complex changing characteristics and the future trend is unclear. To meet the national strategic needs of water and energy security, the major research plan “Runoff Change and its Adaptive Management in the Major Rivers in Southwestern China” focuses on pivotal scientific issues and international frontier of runoff variation and adaptive utilization. The case study rivers of the plan are the major rivers in southwestern China.With steady and strong financial support, the plan aim to provide scientific foundation to address the water and energy security of China. This study is the strategic research project of the major research plan to support investigation, discussion, summary, academic communication both domestic and abroad, and propaganda campaign. Eventually, the project intends to develop an integrated research of the major research plan, understand academic frontier, and perform a leading and planning advice for the progress.