水利枢纽工程作用于环境与生态最集中的外部效应为干扰水文与生态过程。简要介绍了云南省香格里拉小中甸水利枢纽工程和所在的金沙江一级支流硕多岗河流域概况,基于工程对硕多岗河的水文与生态过程的干扰机理,预测了工程对坝址上下游的水文过程和生态过程的影响,为针对性地开发本工程合适的生态与环境措施提供了科学的依据。研究结论对高海拨典型生态敏感区域的水利水电环评的水文与生态影响预测理论与技术具有参考意义。 The most concentrated external effect of water control project on environment and ecology is interference with hydrological and ecological processes. This paper briefly introduces the Xiaozhongdian water conservancy project in Shangri - La, Yunnan Province, and the general situation of the Shuoduogang River Basin, the first tributary of the Jinsha River. Based on the interference mechanism of the project to the hydrological and ecological processes of the Shuoduogang River, The downstream hydrological and ecological processes have provided a scientific basis for the targeted development of suitable ecological and environmental measures for this project. The conclusions of the study are of reference significance to the theory and technology of hydrological and ecological impact prediction of water conservancy and hydropower environmental impact assessment in typical high-altitude ecologically sensitive areas.