中文摘要：

随着河流地貌学研究的深入,河谷-水系演化及环境效应成为了国內外重要研究领域。首先对河谷-水系演化及环境效应研究的国内外进展进行回顾与前瞻。金沙江可谓是山区河谷-水系演化的典型代表,以金沙江河谷-水系演化及环境效应研究为例,认为：河谷-水系变迁及环境效应实质上是区域性陆地地表环境演变的过程,也是深切河谷区中最基本最重要的演变形式,是中外地学研究急需解决的重要科学问题;立足于基于区域自然地理背景的河流地貌学研究,以河流地貌学为主进行自然和人文的多学科理论与方法的拓展性研究,系统全面地从地质历史和发生学角度分析研究山区河谷-水系及环境效应得到机理性和科学性的认识;将构造与构造运动、气候变化、层状地貌、河谷沉积等综合系统研究,将长时间尺度河谷-水系演化与现代地理过程、格局、特征、效应相结合,既揭示山区河谷-水系发育史,又构建现代河谷地域系统高梯度效应框架体系,突显流域系统演化和系统论的理论与应用,可促进河流地貌学的进一步创新,以及大江流域水系与河谷地貌的应用研究。

英文摘要：

With the development of fluvial geomorphology research,the research of the valley-drainage evolution and its effects on environment has become an important research field.In this paper the research progress of the valley-drainage evolution and its effects on environment has been retrospect and prospected.Jinsha River is the typical representatives of the valley-drainage evolution.Taking the study on the valley-drainage evolution and its effects on environment of Jinsha River as an example,the results showed that the valley-drainage evolution and its effects on environment,in essence,are not only the progress of the evolution of the regional land surface environment,but also the basic and the most important form in the area of the deeply incised valleys.And it is an important question which is in dispute and must be settled in geographical study.As the basic study of the fluvial geomorphology of regional natural and geographical background,this study has carried on the expand research of the natural and cultural multidisciplinary theories and methods.And the valley-drainage evolution and its effects on environment have made a systematic,deep and complete study,and get the mechanism and scientific understanding.Based on the comprehensive analysis of structure and tectonic movements,climate change,landforms,valley deposition,and combining the valley-drainage evolution with modern geographic process,structure,characteristics,effect in long times scales,this paper reveals the evolutionary history of the valley-drainage in mountainous regions and constructs the frame system of high gradient effect in modern valley regional.It is not only highlight the theory and application of the basin system evolution and systems theory,but also can promote the further innovation of river geomorphology and the application of large rivers drainage and valley landforms.