摘要
在综合考察了长江中游砂山分布区、鄱阳湖周边地区的典型剖面的基础上,发现砂山粒度特征显示出典型的风成特点:砂丘的分布呈明显的带状,由北向南略为展宽,与风力路径吻合;在不同区域,砂丘发育的高度与风力大小大致相关,从而确定风力应为长江中游砂山形成的主要外营力.
In a comprehensive survey of typical sections in the sand-dunes distribution area in the middle reach of the Yangtze River and Boyang Lake around, research shows that the grainsaize of sand-dunes deposits exhibit typical feature of aeolian sands： the distribution of sand-dunes is strap-shaped, which spread from north to south, and inosculate with the path of wind, and the height of sand-dunes is corresponding with the size of wind. All evidences show that these sand-dunes should be mainly caused by wind.
出处
《许昌学院学报》
CAS
2009年第5期137-140,共4页
Journal of Xuchang University
基金
国家自然科学基金(40372079)
关键词
砂山
长江中游
风成
气候变化
sand-dune
grain-size
aeolian
middle reaches of the.Yangtze River
