长江技术经济

在国家大力推进生态文明建设和长江大保护战略背景下，长江经济带小水电发展重点已经从增量开发转为存量提质增效，新时期新形势对小水电绿色转型发展提出了更高要求。梳理了长江经济带小水电发展现状，分析了新形势下长江经济带小水电绿色转型发展面临的主要挑战，阐述了长江经济带小水电全生命周期绿色发展理念，探讨了小水电生态环境效应量化评估、生态流量泄放及监测、减脱水河道修复、施工开挖扰动减免、设备设施智能化改造、集约化运行与物业化管理等关键技术，旨在为长江经济带小水电绿色高质量发展提供有益参考。

Against the backdrop of China’s vigorous promotion of ecological civilization construction and the Yangtze River Protection Strategy,the focus of small hydropower development in the Yangtze River Economic Belt has shifted from new project development to quality and efficiency improvement of existing stock.The new phase has posed higher requirements for the green transformation and development of small hydropower.This paper reviews the current status of small hydropower development in the Yangtze River Economic Belt,analyzes the main challenges for green transformation and development of small hydropower under the new situation,and elucidates the concept of full life-cycle green development for small hydropower.It also explores key technologies such as quantitative assessment of ecological and environmental effects of small hydropower,discharge and monitoring of ecological flow,restoration of water-reduced and dewatered river sections,mitigation of construction excavation disturbances,intelligent upgrading of equipment and facilities,and intensive operation with property-style management.This research aims to provide insights for the green and high-quality development of small hydropower in the Yangtze River Economic Belt.